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WO2016185703A1 - Élément de fixation - Google Patents

Élément de fixation Download PDF

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Publication number
WO2016185703A1
WO2016185703A1 PCT/JP2016/002364 JP2016002364W WO2016185703A1 WO 2016185703 A1 WO2016185703 A1 WO 2016185703A1 JP 2016002364 W JP2016002364 W JP 2016002364W WO 2016185703 A1 WO2016185703 A1 WO 2016185703A1
Authority
WO
WIPO (PCT)
Prior art keywords
fixture
abutment
groove
protrusion
engagement portion
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Ceased
Application number
PCT/JP2016/002364
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English (en)
Japanese (ja)
Inventor
恭久 高橋
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Individual
Original Assignee
Individual
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP2015100207A external-priority patent/JP2016214369A/ja
Priority claimed from JP2015150163A external-priority patent/JP2017029261A/ja
Application filed by Individual filed Critical Individual
Publication of WO2016185703A1 publication Critical patent/WO2016185703A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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    • A—HUMAN NECESSITIES
    • A61—MEDICAL OR VETERINARY SCIENCE; HYGIENE
    • A61C—DENTISTRY; APPARATUS OR METHODS FOR ORAL OR DENTAL HYGIENE
    • A61C8/00—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools

Definitions

  • the present invention relates to a fixture that is fixed to an alveolar bone.
  • the fixture is a part of an implant used for implant treatment and is fixed to the alveolar bone.
  • an abutment is attached to the fixture, and a prosthesis that functions as an artificial tooth is attached to the abutment.
  • a press-fit fixture and a screw-type fixture are known.
  • the press-fit fixture has a problem that the fixture and the alveolar bone are weakly fixed.
  • the screw-type fixture when the fixture is screwed into the alveolar bone, the fixture is firmly fixed to the alveolar bone, but the bone tissue around the alveolar bone into which the fixture is screwed is greatly damaged. As time passes, the damaged bone tissue is gradually dissolved to create a gap between the fixture and the alveolar bone, so that the fixture and the alveolar bone are weakly attached when the abutment is attached to the fixture. There was a problem of becoming.
  • Patent Document 1 discloses a conventional screw-type fixture.
  • An implant used for implant treatment includes a fixture that is fixed to an alveolar bone, an abutment that is attached to the fixture, and a prosthesis that is attached to the abutment and functions as an artificial tooth.
  • fixtures of an external coupling type and an internal coupling type are known as fixtures.
  • the rigidity of the fixture can be increased since the hollow portion of the fixture is less than the fixture of the internal coupling style.
  • the rigidity of the fixture can be increased since the hollow portion of the fixture is less than the fixture of the internal coupling style.
  • the contact surface area between the fixture and the abutment cannot be increased because the height of the convex portion provided on the upper portion of the fixture cannot be increased due to the restriction of use in the oral cavity.
  • the contact surface area between the fixture and the abutment can be increased by setting the position of the coupling portion to a deep position inside the fixture.
  • the fixture in the inner coupling mode has a lower hollow portion of the fixture than the fixture in the outer coupling mode, so that the rigidity of the fixture is lowered.
  • Patent Document 2 describes a fixture with a conventional external coupling mode and a fixture with a conventional internal coupling mode.
  • An object of the present invention is to provide a fixture capable of firmly fixing a fixture to an alveolar bone without dissolving damaged bone tissue.
  • the present invention increases the coupling force between the fixture and the abutment while suppressing a decrease in the rigidity of the fixture. It is an object of the present invention to provide a fixture that can reduce the risk of the char and internal screw breaking.
  • the fixture of the present invention is a fixture constituting a part of an implant, and has a plurality of first grooves extending in the longitudinal axis direction. When the fixture is press-fitted into the alveolar bone, A rotational force generated by one groove is applied.
  • the fixture further includes a plurality of second grooves extending in a direction intersecting with the plurality of first grooves extending in the longitudinal axis direction, and a protrusion is formed at the intersecting portion. It may be formed.
  • the protrusion may have a pyramid shape.
  • the apex of the protrusion may be chamfered.
  • the fixture may have a cylindrical or tapered tip.
  • the tip portion may have a plurality of first grooves extending in the longitudinal axis direction.
  • the height of the protrusion may be increased toward the tip.
  • the plurality of second grooves extending in the horizontal axis direction may be male threaded grooves.
  • the fixture of the present invention is a fixture constituting a part of an implant, and the fixture includes a fixture main body and an external coupling portion provided outside the main body, and the external coupling portion includes: Including an engaging portion configured to engage with an engaging portion of an abutment attached to the fixture, and a groove portion or a protruding portion is formed on a surface of the engaging portion of the external coupling portion of the fixture.
  • the groove portion or the protrusion portion is configured to engage with the protrusion portion or groove portion formed on the surface of the engagement portion of the abutment, thereby achieving the above object.
  • the groove or the protrusion extends parallel to the longitudinal axis of the fixture.
  • the engaging portion of the outer coupling portion is cylindrical, and the groove or the protrusion formed on the surface of the engaging portion of the outer coupling portion has a planar U shape. None, there are a total of six of the grooves or protrusions, and the grooves or protrusions formed on the surface of the engaging portion of the external coupling portion are on the surface of the engaging portion of the external coupling portion. They are provided approximately evenly.
  • the outer coupling portion is provided on a platform surface of the fixture, and the groove portion on the surface of the engaging portion of the outer coupling portion is located below the fixture surface than the platform surface.
  • An internal lock portion extending toward the front, and the internal lock portion is configured to engage with an external lock portion formed on the protrusion formed on the surface of the engagement portion of the abutment.
  • the internal lock portion has a portion extending toward the outside of the fixture.
  • the fixture of the present invention is a fixture constituting a part of an implant, and the fixture includes a fixture main body, an external coupling portion provided outside the main body, and an inner portion provided inside the main body.
  • a first engaging portion configured to engage with a first engaging portion of an abutment attached to the fixture, and the inner connecting portion includes:
  • a second engagement portion configured to engage with the second engagement portion of the abutment is included.
  • the second engagement portion of the fixture is The outer periphery is longer than the outer periphery of the second engagement portion of the abutment.
  • the external coupling portion is provided on a platform surface of the fixture, and the platform surface is configured so that foreign matter that enters from between the abutment and the gingiva along the platform surface. It has a shape that prevents it from moving to the bone tissue around the fixture.
  • the platform surface is formed so as to move away from the vertical axis toward the upper side of the fixture.
  • a groove or a protrusion is formed on a surface of the first engagement portion of the external coupling portion of the fixture, and the groove or the protrusion is a first engagement portion of the abutment. It is configured to engage with a protrusion or groove formed on the surface of the joint.
  • the first engagement portion of the outer coupling portion is cylindrical, and the groove or the protrusion formed on the surface of the first engagement portion of the outer coupling portion is a flat surface. It is U-shaped, and there are a total of six grooves or protrusions, and the grooves or protrusions formed on the surface of the first engaging portion of the outer coupling portion are It is provided substantially evenly on the surface of the first engaging portion.
  • the second engaging portion of the inner coupling portion has an inner wall surface, and the inner wall surface is inclined so as to approach the longitudinal axis of the fixture as it goes downward of the fixture. The inclination becomes gentler toward the lower side of the fixture.
  • the fixture of the present invention it is possible to provide a fixture that can firmly fix the fixture to the alveolar bone without dissolving the damaged bone tissue.
  • the fixture of the present invention it is possible to reduce the possibility that the fixture and the internal screw are broken by increasing the bonding force between the fixture and the abutment while suppressing the decrease in the rigidity of the fixture. Char can be provided.
  • the figure which shows an example of the structure of the fixture 1 of this invention front view of the fixture 1
  • the figure which shows an example of the structure of the fixture 1 of this invention (partial enlarged view of the fixture 1)
  • the figure which shows an example of the structure of the fixture 1 of this invention bottom view of the fixture 1)
  • the figure which shows the state which press-fit the fixture 1 completely into the hole 11 of the alveolar bone 10 A longitudinal sectional view of the fixture 1 and the alveolar bone 10 in a state where the fixture 1 is completely press-fitted into the hole 11 of the alveolar bone 10 (that is, the state shown in FIG.
  • FIG. 3A The figure which shows another example of the structure of the fixture 1 of this invention (front view of the fixture 1) The figure which shows another example of the structure of the fixture 1 of this invention (front view of the fixture 1) The figure which shows another example of the structure of the fixture 1 of this invention (front view of the fixture 1) The figure which shows the connection relation between the fixture 20 and the abutment 50 Front view of the fixture 20 (the upper part of the fixture 20 is an AA longitudinal sectional view of FIG. 8B) Top view of fixture 20 The figure which shows the result of having connected the point between mutually adjacent groove parts 24 and 24 among the six groove parts 24 shown by FIG. 8B.
  • FIG. 9B The perspective view of the part which expanded the external coupling
  • Front view of the fixture 20 ' (the upper portion of the fixture 20' is a vertical cross-sectional view taken along line AA in FIG. 9B)
  • Top view of fixture 101 Partial enlarged view of the vicinity of the platform surface 111 when the fixture 101 is mounted on the bone tissue 170 of the alveolar bone
  • FIG. 1A is a front view of the fixture 1
  • FIG. 1B is a partially enlarged view of the fixture 1 (an enlarged view of the portion A shown in FIG. 1A)
  • FIG. It is a bottom view.
  • the fixture 1 includes a base portion 2 and a tip portion 3.
  • the base part 2 is formed in a substantially cylindrical shape.
  • the tip 3 has a tapered shape.
  • the fixture 1 composed of the base part 2 and the tip part 3 having such a shape is called a root form type fixture.
  • the outer diameter of the base portion 2 is, for example, about 3 mm to 5 mm.
  • the length of the fixture 1 in the vertical axis direction is, for example, about 10 mm.
  • the vertical axis of the fixture 1 refers to the longitudinal axis of the fixture 1
  • the horizontal axis of the fixture 1 refers to an axis that is substantially orthogonal to the vertical axis of the fixture 1.
  • the vertical axis direction refers to a direction extending along the vertical axis of the fixture 1 (however, a direction extending from the vertical axis of the fixture 1 so as to curve in the circumferential direction is also referred to as a vertical axis direction).
  • the horizontal axis direction refers to a direction extending along the horizontal axis of the fixture 1.
  • a plurality of grooves 6 (a plurality of first grooves) extending in the vertical axis direction from the end portion 4 on the rear end side of the base portion 2 toward the end portion 5 of the tip portion 3 are formed. .
  • the direction indicated by the broken line with reference numeral 9 is the vertical axis direction.
  • a side disposed in the alveolar bone is referred to as a distal end side
  • a side facing the oral cavity is referred to as a rear end side.
  • the plurality of grooves 6 are formed so as to cover the entire outer peripheral surface of the base portion 2 and the tip portion 3 of the fixture 1.
  • Each of the plurality of grooves 6 has a V-shaped cross section. A plurality of grooves 6 are formed so that these V-shapes are connected in the circumferential direction (see FIG. 1C).
  • the fixture 1 is formed with a plurality of grooves 7 (a plurality of second grooves) that intersect with the plurality of grooves 6 and extend in the horizontal axis direction.
  • the plurality of grooves 7 are formed so as to cover the entire outer peripheral surface of the base portion 2 and the tip portion 3 of the fixture 1. Similar to the plurality of grooves 6, the cross-sectional shape of each of the plurality of grooves 7 is also V-shaped. A plurality of grooves 7 are formed so that these V-shapes are connected in the vertical axis direction.
  • a pyramid-shaped protrusion 8 is formed at a portion where a groove 6 having a V-shaped cross section and a groove 7 having a V-shaped cross section intersect. Yes.
  • the top portion of the protrusion 8 is preferably chamfered such as R chamfering or C chamfering.
  • FIG. 2A shows a state in which the fixture 1 is aligned with the hole 11 of the alveolar bone 10.
  • a hole 11 is formed in the alveolar bone 10 in advance.
  • the hole 11 of the alveolar bone 10 can be formed by means such as a drill, for example.
  • the inner diameter of the hole 11 of the alveolar bone 10 is preferably designed to be the same as the outer diameter of the fixture 1 or slightly smaller than the outer diameter of the fixture 1.
  • the distal end portion 3 of the fixture 1 serves as a guide for aligning the vertical axis of the fixture 1 with the vertical axis of the hole 11 of the alveolar bone 10. This is because the distal end portion 3 of the fixture 1 has a tapered shape. As a result, the vertical axis of the fixture 1 can be easily aligned with the vertical axis of the hole 11 of the alveolar bone 10.
  • FIG. 2B shows a state in which the fixture 1 is press-fitted into the hole 11 of the alveolar bone 10.
  • the fixture 1 When the pressing force in the vertical axis direction is applied to the fixture 1 in a state where the vertical axis of the fixture 1 and the vertical axis of the hole 11 of the alveolar bone 10 are aligned, the fixture 1 extends in the vertical axis direction.
  • the rotational force generated by the groove 6 is pressed into the hole 11 of the alveolar bone 10 while rotating along the rotational direction 14.
  • FIG. 2C shows a state in which the fixture 1 is completely press-fitted into the hole 11 of the alveolar bone 10.
  • the fixture 1 is press-fitted into the hole 11 of the alveolar bone 10 so that no gap is generated between the bottom surface of the hole 11 of the alveolar bone 10 and the end 5 of the distal end 3 of the fixture 1.
  • the press-fitting of one alveolar bone 10 into the hole 11 is completed.
  • the fixture 1 according to the first embodiment of the present invention rotates while being pressed into the hole 11 of the alveolar bone 10 while rotating.
  • the fixture 1 can be firmly fixed to the hole 11 of the alveolar bone 10 as compared with a conventional press-fit fixture that is press-fitted into the hole of the alveolar bone. Further, since the fixture 1 is fixed to the alveolar bone by press-fitting, it is possible to reduce damage to the bone tissue around the hole of the alveolar bone as compared with the conventional screw-type fixture.
  • the damaged bone tissue is not gradually dissolved over time, and a gap is not generated between the fixture 1 and the alveolar bone 10, so that the abutment is attached to the fixture 1. At this time, the fixation between the fixture 1 and the alveolar bone 10 is not weakened.
  • the fixture 1 since the fixture 1 has a plurality of grooves 6 extending in the vertical axis direction and a plurality of grooves 7 extending in the horizontal axis direction, the fixture 1 does not have a thread or groove on the outer periphery. It is possible to increase the surface area in which the fixture 1 can come into contact with the hole 11 of the alveolar bone 10 as compared with a conventional fixture and a screw-type fixture that does not have a longitudinal axis groove. . Thereby, the fixture 1 can be more firmly fixed to the hole 11 of the alveolar bone 10.
  • the fixture 1 has a protrusion 8 at a portion where the groove 6 and the groove 7 intersect, the protrusion 8 allows stress applied to the fixture 1 in both the vertical axis direction and the horizontal axis direction. Each can be dispersed. Thereby, it is possible to reduce the damage of the bone tissue around the hole 11 of the alveolar bone 10 in contact with the fixture 1.
  • the top of the protrusion 8 is chamfered, it is possible to avoid the stress applied to the fixture 1 from being concentrated on the top of the protrusion 8. As a result, it is possible to further reduce damage to the bone tissue around the hole 11 of the alveolar bone 10 that contacts the fixture 1.
  • the fixture 1 when the inner diameter of the hole 11 of the alveolar bone 10 is slightly smaller than the outer diameter of the fixture 1, when the fixture 1 is press-fitted into the hole 11 of the alveolar bone 10, the tapered tip 3 is wedged. There will be an effect. Thereby, the fixture 1 can be firmly fixed by the hole 11 of the alveolar bone 10.
  • FIG. 3A is a longitudinal sectional view of the fixture 1 and the alveolar bone 10 in a state where the fixture 1 is completely press-fitted into the hole 11 of the alveolar bone 10 (that is, the state shown in FIG. 2C).
  • FIG. 3B is an AA end view of FIG. 3A.
  • FIG. 3A in a state where the fixture 1 is press-fitted into the hole 11 of the alveolar bone 10, a circumferential clearance is formed between the hole 11 of the alveolar bone 10 and the plurality of grooves 7 extending in the horizontal axis direction. 12 is produced.
  • FIG. 3B when the fixture 1 is press-fitted into the hole 11 of the alveolar bone 10, the vertical direction is formed between the hole 11 of the alveolar bone 10 and the plurality of grooves 6 extending in the vertical axis direction. An axial gap 13 is created.
  • the vertical gap 13 and the circumferential gap 12 serve as a blood circulation path for blood to move in the vertical and circumferential directions. Thereby, the effect of promoting the renewal of bone tissue around the hole 11 of the alveolar bone 10 by circulating blood is obtained. Due to this effect, active internal growth of the bone tissue occurs, so that both the gap 13 in the vertical axis direction and the gap 12 in the circumferential direction are gradually filled with the bone tissue. As a result, when the abutment is attached to the fixture 1, the fixture 1 and the alveolar bone 11 are firmly fixed.
  • the fixture 1 of the present invention it is possible to reduce the damage of the bone tissue around the hole 11 of the alveolar bone 10 and to firmly fix the fixture 1 to the alveolar bone 10.
  • FIG. 4 shows another example of the structure of the fixture 1 according to the first embodiment of the present invention.
  • FIG. 4 is a front view of the fixture 1.
  • a plurality of grooves 6 extending in the vertical axis direction are formed in the distal end portion 3, but a plurality of grooves 7 extending in the horizontal axis direction are not formed in the distal end portion 3.
  • the structure is the same as that of the fixture 1 shown in FIGS. 1A to 1C. Accordingly, the same components as those shown in FIGS. 1A to 1C are denoted by the same reference numerals, and the description thereof is omitted.
  • the fixture 1 is inserted into the hole of the alveolar bone 10. It is possible to generate a rotational force more effectively by the plurality of grooves 6 at the beginning of press-fitting into 11. Thereby, the fixture 1 can be more easily press-fitted into the hole 11 of the alveolar bone 10.
  • FIG. 5 shows another example of the structure of the fixture 1.
  • FIG. 5 is a front view of the fixture 1.
  • the base portion 2 and the tip portion 3 are integrally formed in a cylindrical shape without being distinguished from each other.
  • the fixture 1 having such a shape is called a cylinder-type fixture.
  • the structure of the fixture 1 shown in FIG. 5 is the same as the structure of the fixture 1 shown in FIGS. 1A to 1C except that the tip 3 is not tapered. Accordingly, the same components as those shown in FIGS. 1A to 1C are denoted by the same reference numerals, and the description thereof is omitted.
  • the effect achieved by making the tip portion 3 tapered ie, to align the vertical axis of the fixture 1 with the vertical axis of the hole 11 of the alveolar bone 10.
  • the effect similar to that achieved by the fixture 1 shown in FIGS. 1A to 1C can be achieved.
  • FIG. 6 shows another example of the structure of the fixture 1.
  • FIG. 6 is a front view of the fixture 1.
  • the base portion 2 and the tip portion 3 are integrally formed in a cylindrical shape without being distinguished from each other.
  • the fixture 1 having such a shape is called a cylinder-type fixture.
  • the structure of the fixture 1 shown in FIG. 6 is the same as the structure of the fixture 1 shown in FIG. 4 except that the tip 3 is not tapered. Therefore, the same components as those shown in FIG. 4 are denoted by the same reference numerals, and the description thereof is omitted.
  • the effect achieved by making the distal end portion 3 tapered ie, to align the vertical axis of the fixture 1 with the vertical axis of the hole 11 of the alveolar bone 10.
  • the effect similar to the effect achieved by the fixture 1 shown in FIG. 4 can be achieved.
  • the fixture 1 and the hole 11 of the alveolar bone 10 can be contacted as compared with the fixture 1 shown in FIGS. 1A to 1C and FIG. Since the surface area can be increased, it is advantageous in that the fixture 1 can be firmly fixed to the alveolar bone 10 and processing is easy. Thereby, cost can be reduced.
  • the structure of the fixture 1 described above with reference to the drawings is merely an example.
  • the fixture of the present invention is not limited to the structure of the fixture 1 described above with reference to the drawings. As long as it is possible to firmly fix the fixture to the alveolar bone, it is possible to adopt fixtures of various shapes.
  • the fixture 1 may have a structure in which a plurality of grooves 6 extending in the vertical axis direction are formed, but a plurality of grooves 7 extending in the horizontal axis direction are not formed. Even with such a structure, when the fixture 1 is press-fitted into the alveolar bone, a rotational force is generated by the plurality of grooves 6 extending in the vertical axis direction. Therefore, the fixture 1 can be compared with the conventional press-fit fixture. It is possible to firmly adhere to the alveolar bone. Further, since the fixture 1 is fixed to the alveolar bone by press-fitting, it is possible to reduce damage to the bone tissue around the hole of the alveolar bone as compared with the conventional screw-type fixture.
  • the damaged bone tissue is not gradually dissolved over time, and a gap is not generated between the fixture 1 and the alveolar bone 10, so that the abutment is attached to the fixture 1.
  • the fixation between the fixture 1 and the alveolar bone 10 is not weakened.
  • the plurality of grooves 6 extending in the vertical axis direction are formed, the plurality of grooves 6 extending in the vertical axis direction and the alveolar bone 10 are formed when the fixture 1 is press-fitted into the hole 11 of the alveolar bone 10.
  • a gap 13 in the vertical axis direction is formed between the holes 11.
  • the gap 13 in the vertical axis direction serves as a blood circulation path for blood to move in the vertical axis direction.
  • the effect of firmly fixing the fixture to the alveolar bone while reducing the damage to the bone tissue is formed with the plurality of grooves 6 extending in the vertical axis direction.
  • This can also be achieved by the fixture 1 having a structure in which the groove 7 is not formed. Therefore, the fixture 1 having such a structure is also within the scope of the present invention.
  • the configuration of the plurality of grooves 6 extending in the vertical axis direction is not limited to that described above with reference to the drawings.
  • the plurality of grooves 6 are configured so that rotational force is generated by the plurality of grooves 6 when the fixture 1 is press-fitted into the alveolar bone, the plurality of grooves 6 may have any configuration. Further, it is not necessary to form the plurality of grooves 6 so as to cover the entire outer peripheral surface of the fixture 1. For example, you may make it form the some groove
  • the configuration of the plurality of grooves 7 extending in the horizontal axis direction is not limited to that described above with reference to the drawings.
  • the plurality of grooves 7 are configured so that the fixture 1 can be firmly fixed to the alveolar bone 10 by increasing the surface area that can be contacted between the fixture 1 and the hole 11 of the alveolar bone 10. As long as the plurality of grooves 7 can have any configuration. Further, it is not necessary to form the plurality of grooves 7 so as to cover the entire outer peripheral surface of the fixture 1. For example, you may make it form the some groove
  • the configuration of the plurality of grooves 6 extending in the vertical axis direction and the configuration of the plurality of grooves 7 extending in the horizontal axis direction can have arbitrary configurations as long as the above-described conditions are satisfied.
  • the configuration of the plurality of protrusions 8 formed at the intersection of the plurality of grooves 6 and the plurality of grooves 7 can also be changed.
  • the shape of each of the plurality of protrusions 8 is not limited to the pyramid shape.
  • Each of the plurality of protrusions 8 may have various shapes (for example, a quadrangular prism, a triangular prism, a semi-cylinder, and the like).
  • Each of the heights of the plurality of protrusions 8 may be the same height or different heights.
  • the height of the protrusion 8 may be gradually increased from the rear end side to the front end side of the fixture 1.
  • the portion with the high height of the protrusion 8 is bitten into the hole 11 of the alveolar bone 10. It can be made easier. Thereby, the fixture 1 can be more firmly fixed in the hole 11 of the alveolar bone 10.
  • each of the plurality of grooves 7 extending in the horizontal axis direction may be a male screw-shaped groove. Accordingly, the fixture 1 can be used not only as a press-fit fixture but also as a screw-in fixture.
  • the fixture 20 is formed in a substantially cylindrical body.
  • the outer diameter of the fixture 20 is, for example, about 3 mm to about 5 mm.
  • the length of the fixture 20 in the vertical axis direction is, for example, about 10 mm to about 12 mm.
  • the fixture 20 is configured to be coupled to the abutment 50.
  • FIG. 7 shows the connection relationship between the fixture 20 and the abutment 50.
  • the upper part of FIG. 7 is a longitudinal sectional view of the abutment 50
  • the lower part of FIG. 7 is a longitudinal sectional view of the fixture 20.
  • the fixture 20 is a fixture in an external coupling mode.
  • the fixture 20 includes a fixture body 20A and an external coupling portion 20B provided outside the fixture body 20A.
  • the external coupling portion 20 ⁇ / b> B is for coupling the fixture 20 to the abutment 50. *
  • a platform surface 31 of the fixture 20 and an engagement portion 22 of the fixture 20 are provided at the upper end 29 of the fixture 20A main body.
  • the engaging portion 22 of the fixture 20 has a convex shape.
  • the platform surface 31 of the fixture 20 is configured to be joined to the lower end surface 52 of the abutment 50.
  • the joining relationship between the platform surface 31 of the fixture 20 and the lower end surface 52 of the abutment 50 is represented by a dashed arrow.
  • the engaging portion 22 of the fixture 20 is configured to engage with the engaging portion 51 of the abutment 50.
  • the engaging part 51 of the abutment 50 has a concave shape.
  • FIG. 7 the engagement relationship between the engagement portion 22 of the fixture 20 and the engagement portion 51 of the abutment 50 (that is, the relationship between the convex shape of the engagement portion 22 and the concave shape of the engagement portion 51). are represented by dashed arrows.
  • Each of the groove portions 24 is configured to be fitted to a corresponding one of the six protrusion portions 54 formed on the inner wall surface of the engagement portion 51 of the abutment 50.
  • the fitting relationship between the groove portion 24 of the fixture 20 and the projection portion 54 of the abutment 50 is represented by a dashed arrow.
  • the groove portion 24 of the fixture 20 extends in the longitudinal direction of the fixture 20.
  • a portion below the platform surface 31 is referred to as an internal lock portion 33.
  • the internal lock portion 33 extends toward the outside of the fixture 20.
  • the outer periphery of the internal lock portion 33 has an inclined surface. This inclined surface is gently inclined toward the inside of the fixture 20 as it goes downward of the fixture 20.
  • the internal lock portion 33 that is a part of the groove portion 24 of the fixture 20 is fitted with an external lock portion 55 that is a part of the protrusion 54 of the abutment 50.
  • FIG. 8A is a front view of the fixture 20.
  • the upper part of the fixture 20 is an AA longitudinal sectional view of FIG. 8B.
  • FIG. 8B is a top view of the fixture 20.
  • the fixture 20 includes a fixture body 20A and an external coupling part 20B provided outside the fixture body 20A.
  • External coupling portion 20 ⁇ / b> B includes an engaging portion 22 configured to engage with engaging portion 51 of abutment 50.
  • each of these groove portions 24 has a planar U shape.
  • FIG. 8C is a diagram showing a result of connecting points between adjacent groove portions 24, 24 among the six groove portions 24 shown in FIG. 8B.
  • a hexagonal star (“Star of DAVID”) appears by connecting the points between the adjacent groove portions 24, 24 among the six groove portions 24 shown in FIG. 8B.
  • the inventor named the engaging portion 22 having such six groove portions 24 as “David hexagram” (“DAVID hexgram”), and named the six groove portions 24 after the hexagonal star shape.
  • DAVID connection The combination of the fixture 20 and the abutment 50 using the engaging portion 22 having the same is named “David connection” (“DAVID connection”).
  • FIG. 8D is a perspective view of an enlarged portion of the external coupling portion 20B of the fixture 20. As shown in FIG. 8D, each of the six groove portions 24 formed on the outer wall surface 23 of the engaging portion 22 of the external coupling portion 20 ⁇ / b> B extends in the vertical axis direction of the fixture 20.
  • the upper surface of the engaging portion 22 of the fixture 20 is provided with a screw hole 25 (for example, ⁇ 1.6 mm) in which a female screw is cut.
  • the screw hole 25 is formed so as to extend from the upper surface of the engaging portion 22 to the inside of the fixture body 20A.
  • a plurality of grooves 26 and a plurality of grooves 27 are formed on the outer peripheral surface of the fixture body 20A.
  • the plurality of grooves 26 extend in the longitudinal direction of the fixture 20 from the upper end 29 of the fixture body 20 ⁇ / b> A toward the lower end 30.
  • the plurality of grooves 26 extend in the horizontal axis direction of the fixture 20 so as to intersect with the plurality of grooves 27.
  • the cross-sectional shape of the plurality of grooves 26 and the cross-sectional shape of the plurality of grooves 27 are each V-shaped.
  • a pyramid-shaped projection 28 is formed at a portion where the plurality of grooves 26 and the plurality of grooves 27 intersect.
  • the shape of what is formed on the outer peripheral surface of the fixture body 20A shown in FIGS. 8A and 8B is merely an example, and the present invention is not limited to this. Various shapes can be adopted as the shape formed on the outer peripheral surface of the fixture body 20A.
  • the longitudinal direction of the fixture 20 refers to a direction extending along the longitudinal axis of the fixture 20 (that is, the longitudinal axis X, see FIG. 8A) (however, from the longitudinal axis X of the fixture 20).
  • the direction extending so as to curve in the circumferential direction is also referred to as the vertical axis direction).
  • the horizontal axis direction of the fixture 20 refers to a direction extending along a horizontal axis substantially orthogonal to the vertical axis X of the fixture 20.
  • the direction approaching the vertical axis X in the horizontal axis direction of the fixture 20 is called “inside” (see FIG.
  • the screw diameter of the internal screw for example, while the screw diameter ⁇ of the internal screw of the fixture of the conventional external coupling mode is 2.0 mm, the inside of the fixture 20 The screw diameter of the screw can be reduced to ⁇ 1.6 mm), and the value of torque required for fastening the abutment 50 to the fixture 20 (ie, the fastening torque value) can be reduced.
  • the fastening torque value of the fixture 20 for example, it is possible to reduce the fastening torque value of the fixture 20 to about 20 Ncm to about 25 Ncm, while the fastening torque value of the fixture of the conventional external coupling mode is about 35 Ncm).
  • the bonding force between the fixture 20 and the abutment 50 can be increased, the stress concentration on the internal screw when the fixture 20 and the abutment 50 are fastened can be reduced. . Thereby, it is possible to reduce the possibility that the internal screw breaks.
  • the fastening torque value can be reduced, an excessive rotational force is not generated in the fixture 20 when the fixture 20 and the abutment 50 are fastened. For this reason, it is possible to prevent destruction of the fixation state (so-called osseointegration) between the bone tissue and the fixture 20.
  • the engaging portion 22 having the six groove portions 24 has a hexagonal star shape, even when a rotational force is generated in the abutment 50 in the vertical axis direction and the horizontal axis direction, It is possible to stably obtain the bonding force between the fixture 20 and the abutment 50 without impairing the compatibility between the fixture 20 and the abutment 50 as compared to the fixture of the external coupling mode.
  • the engaging part 22 having the six groove parts 24 has a hexagonal star shape, the engaging part 22 of the fixture 20 can receive stress from all directions. Thereby, it is possible to reduce the stress concentration on the internal screw, and it is possible to reduce the possibility that the internal screw is loosened or the internal screw is broken.
  • the screw diameter of the internal screw can be reduced (for example, the screw diameter of the internal screw can be reduced to ⁇ 1.6 mm), the thickness of the fixture 20 is increased accordingly. It is possible. Thereby, the rigidity of the fixture 20 can be increased, and the adverse effects on the bone tissue around the fixture 20 and the possibility of the fixture 20 being broken can be reduced.
  • the bonding force between the fixture 20 and the abutment 50 can be further increased.
  • the outer periphery of the inner lock portion 33 of the fixture 20 has an inclined surface that gradually inclines toward the inside of the fixture 20 as it goes downward of the fixture 20. Thereby, it is possible to facilitate the fitting between the internal lock portion 33 of the fixture 20 and the external lock portion 55 of the abutment 50.
  • the fixture 20 is an externally coupled fixture, there are fewer hollow portions than the conventional internally coupled fixture, and the fixture 20 can have high rigidity. Thereby, it is possible to reduce the possibility that the fixture 20 is broken.
  • the structure of the fixture 20 described above with reference to the alternative structural drawing of the fixture according to the second embodiment of the present invention is merely an example.
  • the structure of the fixture 20 of the present invention is not limited to the structure of the fixture described above with reference to the drawings. As long as it is possible to increase the bonding force between the fixture 20 and the abutment 50, it is possible to employ the fixture 20 having various structures.
  • FIG. 9A is a front view of the fixture 20 ′.
  • the upper portion of the fixture 20 ' is a vertical cross-sectional view taken along the line AA of FIG. 9B.
  • FIG. 9B is a top view of the fixture 20 ′.
  • the structure of the fixture 20 ′ shown in FIGS. 9A and 9B is the same as that of the fixture 20 shown in FIGS. 8A and 8B, except that the groove 24 ′ of the fixture 20 ′ does not have the internal lock portion 33.
  • the structure is the same.
  • the same components as those shown in FIGS. 8A and 8B are denoted by the same reference numerals, and the description thereof is omitted.
  • the effect achieved by providing the internal lock portion 33 that is, the internal lock portion 33 of the fixture 20 and the external lock portion 55 of the abutment 50 are 8A and 8B, except for the effect that it is possible to prevent the abutment 50 from floating from the platform surface 31 of the fixture 20 by fitting.
  • An effect similar to the effect can be achieved.
  • the fixture 20 ′ is easy to process because the internal lock portion 33 is not provided, and the manufacturing cost can be reduced.
  • the fixture 20 ′ not provided with the internal lock portion 33 is useful for a small-diameter fixture in which the internal lock portion 33 is provided and the rigidity may be lowered.
  • FIG. 10A is a front view of the fixture 20 ′′.
  • the upper part of the fixture 20 ′′ is an AA longitudinal sectional view of FIG. 10B.
  • FIG. 10B is a top view of the fixture 20 ′′.
  • the groove portion 24 ′′ of the fixture 20 ′′ has an internal lock portion 33 ′′, but the internal lock portion 33 ′′ is located outside the fixture 20 ′′.
  • the structure of the fixture 20 shown in FIGS. 8A and 8B is the same as that of FIG.
  • the same components as those shown in FIGS. 8A and 8B are denoted by the same reference numerals, and the description thereof is omitted.
  • the coupling force between the fixture 20 ′′ and the abutment is increased by fitting the groove 24 ′′ of the fixture 20 ′′ and the protrusion of the abutment.
  • 8A and 8B has a smaller effect than the effect of increasing the bonding force between the fixture 20 and the abutment by fitting the groove portion 24 of the fixture 20 and the projection of the abutment shown in FIGS. Except for this, it is possible to achieve the same effect as that achieved by the fixture 20 shown in FIGS. 8A and 8B.
  • the shape of the engaging portion 22 of the fixture 20 is not limited to the shape described above with reference to the drawings. As long as the bonding force between the fixture 20 and the abutment 50 can be increased, it is possible to employ the engagement portions 22 having various shapes (for example, a cylindrical shape or a polygonal column shape). .
  • the configuration of the groove portion 24 formed on the outer wall surface of the engagement portion 22 of the fixture 20 is not limited to the configuration described above with reference to the drawings. As long as the bonding force between the fixture 20 and the abutment 50 can be increased, various configurations (for example, the number of grooves, the shape of the grooves, the interval between the grooves, the width of the grooves, the depth of the grooves, etc. are arbitrary) It is possible to employ a groove portion 24 having a configuration of For example, the number of the groove parts 24 is not limited to six. The number of the groove portions 24 may be an arbitrary number of 1 or more. For example, the shape of the groove 24 is not limited to a planar U-shape. The shape of the groove 24 can be any shape.
  • the interval between the groove portions 24 is not limited to be substantially equal.
  • the interval between the groove portions 24 may be an arbitrary interval.
  • a surface other than the outer wall surface 23 of the engagement portion 22 of the fixture 20 (for example, the engagement portion 22 of the fixture 20 is not provided). You may make it form the groove part 24 in an upper surface.
  • the surface of the engagement portion 22 of the fixture 20 (the outer wall surface 23 or a surface other than the outer wall surface 23)
  • Projections may be formed on the surface other than 23).
  • the coupling force between the fixture 20 and the abutment 50 can be increased by fitting the protrusion of the fixture 20 and the groove of the abutment 50.
  • various configurations for example, the number of protrusions, the shape of the protrusions, the interval between the protrusions, the width of the protrusions, the width of the protrusions, It is possible to employ a protrusion having a structure in which the depth is an arbitrary value.
  • the number of protrusions is not limited to six.
  • the number of protrusions can be any number greater than or equal to one.
  • the intervals between the protrusions are not limited to be substantially equal.
  • the interval between the protrusions can be any interval.
  • each of the plurality of groove portions 24 has the internal lock portion 33. At least one of the plurality of grooves 24 may have an internal lock portion 33.
  • the configuration of the plurality of grooves 26 extending in the vertical axis direction formed on the outer peripheral surface of the fixture 20 has been described above with reference to the drawings It is not limited to the configuration.
  • the configuration of the plurality of grooves 27 extending in the horizontal axis direction formed on the outer peripheral surface of the fixture 20 is also described above with reference to the drawings. It is not limited to the configuration.
  • a plurality of protrusions formed at the intersection of the plurality of grooves 26 and the plurality of grooves 27 according to the configuration of the plurality of grooves 26 extending in the vertical axis direction and the plurality of grooves 27 extending in the horizontal axis direction.
  • the 28 configuration can also vary.
  • the shape of each of the plurality of protrusions 28 is not limited to the shape of a pyramid.
  • Each of the plurality of protrusions 28 may have various shapes (for example, a quadrangular prism, a triangular prism, a semi-cylinder, and the like).
  • Each of the heights of the plurality of protrusions 28 may be the same height or different heights.
  • Fixture 101 is configured to be coupled to abutment 130.
  • FIG. 11 shows the connection relationship between the fixture 101 and the abutment 130.
  • the upper part of FIG. 11 is a longitudinal sectional view of the abutment 130
  • the lower part of FIG. 11 is a longitudinal sectional view of the fixture 101.
  • the fixture 101 is a fixture of an inner-outer coupling mode having both an inner coupling mode and an outer coupling mode.
  • the fixture 101 includes a fixture main body 101 ⁇ / b> A and a coupling portion 101 ⁇ / b> B for coupling to the abutment 130.
  • the coupling portion 101B includes an external coupling portion 150 provided outside the fixture body 101A and an internal coupling portion 151 provided inside the fixture body 101A.
  • the outer coupling 150 and the inner coupling portion 151 are for coupling the fixture 101 to the abutment 130.
  • a platform surface 111 of the fixture 101 and an engaging portion 114 of the fixture 101 are provided on the upper end portion 108 of the fixture 101A main body.
  • the engaging portion 114 of the fixture 101 has a concave shape.
  • the engaging portion 102 of the fixture 101 is configured to engage with the engaging portion 131 of the abutment 130.
  • the engaging part 131 of the abutment 130 has a concave shape.
  • the engagement relationship between the engagement portion 102 of the fixture 101 and the engagement portion 131 of the abutment 130 (that is, the relationship between the convex shape of the engagement portion 102 and the concave shape of the engagement portion 131).
  • dashed arrows are represented by dashed arrows.
  • Each of these groove portions 104 is configured to be fitted to a corresponding one of the six protrusions 134 formed on the inner wall surface of the engagement portion 131 of the abutment 130.
  • the fitting relationship between the groove portion 104 of the fixture 101 and the projection portion 134 of the abutment 130 is represented by a dashed arrow.
  • the groove portion 104 of the fixture 101 extends in the vertical axis direction of the fixture 101.
  • a portion below the bottom surface 115 of the engagement portion 114 is referred to as an internal lock portion 113.
  • the internal lock part 113 extends toward the outside of the fixture 101.
  • the outer periphery of the internal lock part 113 has an inclined surface. This inclined surface is gently inclined toward the inside of the fixture 101 as it goes downward of the fixture 101.
  • the internal lock portion 113 which is a part of the groove portion 104 of the fixture 101 is fitted with an external lock portion 137 which is a part of the projection portion 134 of the abutment 130.
  • the engaging portion 114 of the fixture 101 is configured to engage with the engaging portion 135 of the abutment 130.
  • the engaging part 135 of the abutment 130 has a convex shape.
  • the inner wall surface 116 of the engaging portion 114 of the fixture 101 is configured to engage with the outer wall surface 136 of the engaging portion 135 of the abutment 130.
  • the bottom surface 115 of the engaging portion 114 of the fixture 101 is configured to be joined to the lower end surface 132 of the abutment 130.
  • FIG. 11 the engagement relationship between the inner wall surface 116 of the engagement portion 114 of the fixture 101 and the outer wall surface 136 of the engagement portion 135 of the abutment 130 and the bottom surface 115 of the engagement portion 114 of the fixture 101 and the abutment 130.
  • the joining relationship with the lower end surface 132 is represented by a dashed arrow.
  • FIG. 12A is a cross-sectional view taken along the line AA in FIG. 12B as viewed from the front of the fixture 101.
  • FIG. 12B is a top view of the fixture 101.
  • the fixture 101 includes a fixture body 101 ⁇ / b> A and a coupling portion 101 ⁇ / b> B for coupling to the abutment 130.
  • the coupling portion 101B includes an external coupling portion 150 provided outside the fixture body 101A and an internal coupling portion 151 provided inside the fixture body 101A.
  • External coupling portion 150 includes an engagement portion 102 configured to engage with an engagement portion 131 of abutment 130.
  • Internal coupling portion 151 includes an engagement portion 114 configured to engage with engagement portion 135 of abutment 130.
  • the engaging part 102 has a convex shape.
  • the engaging part 114 has a concave shape.
  • the engaging portion 102 having a convex shape is disposed at the center of the bottom surface 115 of the engaging portion 114 having a concave shape.
  • each of these groove portions 104 has a planar U shape.
  • the shape of the groove 104 shown in FIG. 12B is the same as the shape of the groove 24 shown in FIG. 8B.
  • the engagement of the fixture 101 in addition to the engagement (external coupling) between the engagement portion 102 of the fixture 101 and the engagement portion 131 of the abutment 130, the engagement of the fixture 101
  • the fixture 101 and the abutment 130 are coupled by the engagement (internal coupling) between the joining portion 114 and the engaging portion 135 of the abutment 130.
  • the contact surface area between the fixture 101 and the abutment 130 can be increased as compared with the fixture 20 shown in FIGS. 8A and 8B.
  • the coupling force between the fixture 101 and the abutment 130 can be increased, and the burden of the coupling force by the internal screw can be reduced.
  • the screw diameter of the internal screw can be reduced (for example, the screw diameter of the internal screw can be reduced to ⁇ 1.4 mm), and the abutment 130 is fastened to the fixture 101.
  • the required torque value ie, the fastening torque value
  • the fastening torque value can be reduced (eg, the fastening torque value of the fixture 101 can be reduced to about 15 Ncm to about 20 Ncm).
  • the bonding force between the fixture 101 and the abutment 130 can be increased, the stress concentration on the internal screw when the fixture 101 and the abutment 130 are fastened can be reduced. . Thereby, it is possible to reduce the possibility that the internal screw breaks.
  • the fastening torque value can be reduced, an excessive rotational force is not generated in the fixture 101 when the fixture 101 and the abutment 130 are fastened. For this reason, it is possible to prevent destruction of the fixation state (so-called osseointegration) between the bone tissue and the fixture 101.
  • the inner wall surface 116 of the engaging portion 114 of the fixture 101 and the outer wall surface 136 of the engaging portion 135 of the abutment 130 are engaged.
  • the stress in the horizontal axis direction can be absorbed by the inner wall surface 116 of the engaging portion 114 of the fixture 101.
  • the position of the bottom surface 115 of the engagement portion 114 of the fixture 101 is set to the position of the bottom surface of the concave engagement portion of the fixture of the conventional internal coupling mode.
  • the hollow portion of the fixture 101 can be greatly reduced as compared with the fixture of the conventional internal coupling mode.
  • even when a large stress is generated on the fixture 101 it is possible to reduce the possibility of the fixture 101 breaking.
  • the fixture 101 of the third embodiment of the present invention it is possible to prevent foreign matters such as dirt in the mouth and bacteria from entering the periphery of the fixture 101. Thereby, it is possible to prevent bone resorption of bone tissue caused by foreign matters such as dirt in the mouth and bacteria entering the periphery of the fixture 101.
  • FIG. 13 is a partially enlarged view of the vicinity of the platform surface 111 when the fixture 101 according to the third embodiment of the present invention is attached to the bone tissue 170 of the alveolar bone.
  • a platform surface 111 is provided at the upper end of the fixture body 101.
  • the platform surface 111 has an outer bevel portion 117 that inclines toward the lower side of the fixture 101 toward the outside of the fixture 101, and an inner side that inclines toward the lower side of the fixture 101 toward the inside of the fixture 101.
  • a bevel portion 118 is formed.
  • the lower end of the outer bevel portion 117 and the bone interface 171 of the bone tissue 170 are in contact with each other.
  • the lower end of the inner bevel portion 118 is in contact with the upper end of the inner wall surface 116 of the fixture 101.
  • the inner wall surface 116 of the engaging portion 114 of the fixture 101 and the outer wall surface 136 of the engaging portion 135 of the abutment 130 are engaged.
  • Gingiva 160 is laminated on top of platform surface 111. The gingiva 160 is in contact with the outer wall surface 136 of the abutment 130.
  • the outer periphery of the fixture 101 is the abutment 130. It is longer than the outer circumference. Thereby, a switching platform can be realized. In other words, foreign matter 180 such as dirt or bacteria in the oral cavity is engaged with the fixture 101 and the abutment 130 along the outer wall surface 136 of the abutment 130 from between the abutment 130 and the gingiva 160.
  • the inner bevel portion 118 is provided on the platform surface 111, it is possible to prevent the foreign matter 180 from moving along the platform surface 111 to the bone interface 171 of the bone tissue 170. Thereby, the bone resorption of the bone tissue 170 can be further suppressed. As a result, it is possible to more stably obtain the fixing strength between the fixture 101 and the bone tissue 170 as compared with the fixture of the conventional external coupling mode.
  • the structure of the fixture 101 described above with reference to the alternative structural drawing of the fixture according to the third embodiment of the present invention is merely an example.
  • the structure of the fixture 101 of the present invention is not limited to the structure of the fixture described above with reference to the drawings. As long as the bonding force between the fixture 101 and the abutment 130 can be increased, various shapes of the fixture 101 can be employed.
  • the inner wall surface 116 of the engaging portion 114 of the fixture 101 may be a surface parallel to the vertical axis X.
  • the shape of the platform surface 111 may vary as long as the foreign material 180 entering between the abutment 130 and the gingiva 160 is prevented from moving to the bone tissue 170 along the platform surface 111. It is possible to adopt a platform surface 111 having a simple shape (for example, a shape such as a U shape, a V shape, a semicircular arc shape, or a shape such as an inverted U shape, an inverted V shape, a semicircular arc shape). is there.
  • the platform surface 111 is preferably inclined toward the outside of the fixture 101 as it goes upward of the fixture 101. Accordingly, when the foreign matter 180 moves along the platform surface 111, the foreign matter 180 needs to move against gravity. As a result, it is possible to further suppress the foreign matter 180 from moving to the bone tissue 170.
  • the present invention is useful as a fixture capable of firmly fixing a fixture to an alveolar bone without dissolving damaged bone tissue.
  • the present invention provides a fixture capable of reducing the risk of fracture of the fixture and the internal screw by increasing the bonding force between the fixture and the abutment while suppressing a decrease in the rigidity of the fixture. Useful as.

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  • Health & Medical Sciences (AREA)
  • Oral & Maxillofacial Surgery (AREA)
  • Orthopedic Medicine & Surgery (AREA)
  • Dentistry (AREA)
  • Epidemiology (AREA)
  • Life Sciences & Earth Sciences (AREA)
  • Animal Behavior & Ethology (AREA)
  • General Health & Medical Sciences (AREA)
  • Public Health (AREA)
  • Veterinary Medicine (AREA)
  • Dental Prosthetics (AREA)

Abstract

La présente invention vise à fournir un élément de fixation qui peut être fixé à un os alvéolaire fortement sans provoquer la lyse d'un tissu osseux endommagé. La présente invention vise également à fournir un élément de fixation avec lequel il devient possible de réduire la possibilité de rupture de l'élément de fixation et d'une vis interne par augmentation de la force de liaison entre l'élément de fixation et une butée tout en empêchant la diminution de la ténacité de l'élément de fixation. Un élément de fixation (1) constitue une partie d'un implant. L'élément de fixation (1) comporte de multiples premières rainures (6), qui s'étendent dans la direction d'axe longitudinal (9). L'élément de fixation (1) est conçu de telle sorte qu'une force de rotation peut être appliquée lors de la pression de l'élément de fixation (1) dans un os alvéolaire (10). L'élément de fixation (1) comprend également de multiples secondes rainures (7) qui s'étendent dans une direction qui coupe les multiples premières rainures (6) qui s'étendent dans la direction d'axe longitudinal (9), et des saillies (8) sont formées au niveau d'intersections entre les premières rainures (6) et les secondes rainures (7).
PCT/JP2016/002364 2015-05-15 2016-05-13 Élément de fixation Ceased WO2016185703A1 (fr)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP2015100207A JP2016214369A (ja) 2015-05-15 2015-05-15 フィクスチャー
JP2015-100207 2015-05-15
JP2015150163A JP2017029261A (ja) 2015-07-29 2015-07-29 フィクスチャー
JP2015-150163 2015-07-29

Publications (1)

Publication Number Publication Date
WO2016185703A1 true WO2016185703A1 (fr) 2016-11-24

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Application Number Title Priority Date Filing Date
PCT/JP2016/002364 Ceased WO2016185703A1 (fr) 2015-05-15 2016-05-13 Élément de fixation

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WO (1) WO2016185703A1 (fr)

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06319759A (ja) * 1993-04-27 1994-11-22 Medevelop Ab 補綴、人工関節部品等を保持するための組織内移植用固定要素
JPH1142239A (ja) * 1997-05-15 1999-02-16 Core Vent Corp １パーツの根形の骨内歯科用インプラント
JPH11505749A (ja) * 1995-05-25 1999-05-25 インプラント・イノヴェーションズ・インコーポレーテッド 回転防止型の接続機構
JP2004167226A (ja) * 2002-10-31 2004-06-17 Horikkusu:Kk 人工歯根
JP2007515198A (ja) * 2003-05-21 2007-06-14 ノベル バイオケア サービシーズ エージー 容易に挿入可能な骨圧縮インプラント
JP2010505564A (ja) * 2006-10-11 2010-02-25 アストラ・テック・アクチエボラーグ インプラント
JP2010136944A (ja) * 2008-12-12 2010-06-24 Nihon Univ インプラント
WO2012010794A1 (fr) * 2010-07-19 2012-01-26 Assistance Publique Hopitaux De Paris Implant dentaire et dispositif d'entrainement en rotation dudit implant dentaire

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH06319759A (ja) * 1993-04-27 1994-11-22 Medevelop Ab 補綴、人工関節部品等を保持するための組織内移植用固定要素
JPH11505749A (ja) * 1995-05-25 1999-05-25 インプラント・イノヴェーションズ・インコーポレーテッド 回転防止型の接続機構
JPH1142239A (ja) * 1997-05-15 1999-02-16 Core Vent Corp １パーツの根形の骨内歯科用インプラント
JP2004167226A (ja) * 2002-10-31 2004-06-17 Horikkusu:Kk 人工歯根
JP2007515198A (ja) * 2003-05-21 2007-06-14 ノベル バイオケア サービシーズ エージー 容易に挿入可能な骨圧縮インプラント
JP2010505564A (ja) * 2006-10-11 2010-02-25 アストラ・テック・アクチエボラーグ インプラント
JP2010136944A (ja) * 2008-12-12 2010-06-24 Nihon Univ インプラント
WO2012010794A1 (fr) * 2010-07-19 2012-01-26 Assistance Publique Hopitaux De Paris Implant dentaire et dispositif d'entrainement en rotation dudit implant dentaire

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