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WO2021251535A1 - Fixation d'implant dentaire - Google Patents

Fixation d'implant dentaire Download PDF

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Publication number
WO2021251535A1
WO2021251535A1 PCT/KR2020/007819 KR2020007819W WO2021251535A1 WO 2021251535 A1 WO2021251535 A1 WO 2021251535A1 KR 2020007819 W KR2020007819 W KR 2020007819W WO 2021251535 A1 WO2021251535 A1 WO 2021251535A1
Authority
WO
WIPO (PCT)
Prior art keywords
abutment
fixture
fixture body
dental implant
present
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/KR2020/007819
Other languages
English (en)
Korean (ko)
Inventor
김영재
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.)
Korea Dental Implant Inc Kdi Inc
Original Assignee
Korea Dental Implant Inc Kdi Inc
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
Application filed by Korea Dental Implant Inc Kdi Inc filed Critical Korea Dental Implant Inc Kdi Inc
Publication of WO2021251535A1 publication Critical patent/WO2021251535A1/fr
Anticipated expiration legal-status Critical
Ceased legal-status Critical Current

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Classifications

    • 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
    • A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
    • A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
    • A61C8/0066—Connecting devices for joining an upper structure with an implant member, e.g. spacers with positioning means
    • 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
    • A61C8/0018—Means to be fixed to the jaw-bone for consolidating natural teeth or for fixing dental prostheses thereon; Dental implants; Implanting tools characterised by the shape
    • A61C8/0022—Self-screwing
    • 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
    • A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
    • A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
    • A61C8/0059—Connecting devices for joining an upper structure with an implant member, e.g. spacers with additional friction enhancing means
    • 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
    • A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
    • A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
    • A61C8/0068—Connecting devices for joining an upper structure with an implant member, e.g. spacers with an additional screw
    • 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
    • A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
    • A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
    • A61C8/0069—Connecting devices for joining an upper structure with an implant member, e.g. spacers tapered or conical connection
    • 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
    • A61C8/0048—Connecting the upper structure to the implant, e.g. bridging bars
    • A61C8/005—Connecting devices for joining an upper structure with an implant member, e.g. spacers
    • A61C8/0074—Connecting devices for joining an upper structure with an implant member, e.g. spacers with external threads

Definitions

  • the present invention relates to a fixture for a dental implant, and more particularly, to a fixture for a dental implant capable of preventing shaking of an abutment coupled to the fixture.
  • An implant originally refers to a replacement that restores human tissue when it is lost, but in dentistry, it refers to a series of procedures that implant artificially made teeth.
  • Artificial teeth treatment also referred to as implant or implant treatment
  • the fixture is placed in the alveolar bone to osseointegrate into the bone, and then the abutment ( After bonding the abutment, it is usually completed by placing the final prosthesis on the abutment.
  • Dental implants improve the function of dentures for partially and completely edentulous patients as well as restoration of single missing teeth, improve the aesthetics of dental prosthetic restorations, and further distribute excessive stress on the surrounding supporting bone tissue. It also helps to stabilize the dentition.
  • These dental implants generally include a fixture to be placed as an artificial tooth root, an abutment coupled to the fixture, and an abutment screw for fixing the abutment to the fixture; It includes an artificial tooth coupled to the abutment.
  • the abutment is coupled to the fixture to maintain the coupled state.
  • a fixture which is a component of a dental implant, is placed in a drill hole formed in the alveolar bone by using a drill or the like at a position where the implant is operated, and plays the role of an artificial tooth root.
  • a screw portion formed in a spiral shape is provided around the outer wall of the fixture for rigid fixation of the fixture and the alveolar bone.
  • the fixture is formed by being depressed in the longitudinal direction from the upper end portion is provided with an insertion groove for the abutment into which the abutment is inserted.
  • the abutment and the tool are provided in a shape to fit the outer wall of the abutment to prevent the relative rotation of the abutment with respect to the fixture and to which the tool for rotation is detachably coupled.
  • a combined coupling portion is provided.
  • the combination of the abutment and the tool has a function of receiving the rotational power of the tool for rotation when the fixture is installed by having the inner wall conform to the shape of the abutment and the outer wall of the tool, and is inserted into the insertion groove for the abutment. It functions to block the relative rotation of the abutment with respect to the fixture.
  • the inner wall of the abutment coupling portion is provided in a hexagonal shape along the circumferential direction of the fixture.
  • the abutment is provided with an insert having a shape in which the outer wall is shape-fitted to the inner wall of the abutment coupling portion.
  • the inner wall of the abutment coupling portion of the fixture according to the prior art and the outer wall of the insertion portion of the abutment are provided in a hexagonal shape. Since the outer wall of the insertion part of the abutment is not completely in close contact, a fine space is generated between the inner wall of the abutment coupling part of the fixture and the outer wall of the insertion part of the abutment.
  • Shaking is generated in the abutment coupled to the fixture by this separation space, and the shaking of the abutment causes damage to the abutment or the fixture.
  • An object of the present invention is to provide a fixture for a dental implant that can effectively receive the torque of a rotating tool during the installation process of the fixture while preventing the shaking of an abutment coupled to the fixture.
  • the fixture of the dental implant according to the present invention for solving the above technical problem is provided with a screw portion formed in a spiral shape along the outer wall circumference, the abutment insertion groove into which the abutment is inserted is depressed in the longitudinal direction from the upper end a fixture body formed; And at least a portion of the inner wall of the insertion groove for the abutment is provided in a shape to fit the outer wall of the abutment, provided in a wavy shape along the circumferential direction of the fixture body, the abutment for the fixture body It may include; an abutment rotation blocking unit for preventing the relative rotation of
  • the abutment rotation blocking portion includes a plurality of concave portions bent toward the outer wall of the fixture body; and a plurality of convex portions bent toward the axis of rotation of the fixture body.
  • the plurality of concave portions and the plurality of convex portions may intersect along a circumferential direction of the fixture body.
  • the plurality of concave portions may be formed to overlap a virtual circle in which a centrifugal force is located on a rotation axis of the fixture body.
  • the plurality of convex portions may be formed to overlap the circle of curvature in which the center of curvature is located outside the virtual circle.
  • the fixture body is disposed in the lower region of the abutment rotation preventing part among the insertion grooves for the abutment, is formed in the longitudinal direction from the lower part of the abutment rotation preventing part, and the abutment is inserted into the fixture It may further include a; female screw portion to which the male screw portion of the abutment screw coupled to the body is fastened.
  • the fixture body is disposed in the upper region of the abutment rotation blocking portion among the insertion grooves for the abutment, and the inner diameter is tapered from the upper end of the fixture body to the lower end of the fixture body. ; may be included.
  • the inner wall is shaped to fit the outer wall of the abutment and includes an abutment rotation stopper formed in a wavy shape along the circumferential direction, thereby preventing the shaking of the abutment coupled to the fixture body while preventing the fixture
  • the torque of the rotating tool can be effectively transmitted during the installation process.
  • FIG. 1 is a perspective view of a fixture of a dental implant according to a first embodiment of the present invention.
  • FIG. 2 is a cross-sectional view taken along the line CSa1-CSa1' of FIG. 1 .
  • FIG. 3 is a cross-sectional view taken along the line CSa2-CSa2' of FIG. 1 .
  • FIG 4 is a perspective view of a dental implant system including the fixture of the dental implant according to the first embodiment of the present invention and the abutment of the dental implant according to the first embodiment of the present invention.
  • FIG. 5 is a cross-sectional view of a fixture of a dental implant according to a second embodiment of the present invention.
  • FIG. 6 is a perspective view of a dental implant system including the fixture of the dental implant according to the second embodiment of the present invention and the abutment of the dental implant according to the second embodiment of the present invention.
  • FIG. 7 is a perspective view of a dental implant system including a dental implant fixture according to a second embodiment of the present invention and an abutment of a dental implant according to a third embodiment of the present invention.
  • FIG. 8 is a perspective view of a fixture of a dental implant according to a third embodiment of the present invention.
  • FIG. 9 is a cross-sectional view taken along line CSc1-CSc1' of FIG. 8 .
  • FIG. 10 is a cross-sectional view taken along line CSc2-CSc2' of FIG. 8 .
  • FIG. 11 is a cross-sectional perspective view taken along line CSc1-CSc1' of FIG. 8 .
  • FIG. 12 is a perspective view of a dental implant system including a dental implant fixture according to a third embodiment of the present invention and an abutment of a dental implant according to a fourth embodiment of the present invention.
  • FIG. 13 is a perspective view of a dental implant system including a dental implant fixture according to a third embodiment of the present invention and an abutment of a dental implant according to a fifth embodiment of the present invention.
  • FIG. 14 is a perspective view of a fixture for a dental implant according to a fourth embodiment of the present invention.
  • FIG. 15 is a cross-sectional view taken along line CSd1-CSd1' of FIG. 14 .
  • 16 is a cross-sectional view taken along line CSd2-CSd2' of FIG. 14 .
  • FIG. 17 is a perspective view of a dental implant system including a dental implant fixture according to a fourth embodiment of the present invention and an abutment of a dental implant according to a sixth embodiment of the present invention.
  • the fixture of the dental implant according to the present invention is provided with a screw portion formed in a spiral shape along the circumference of the outer wall, the abutment insertion groove for the abutment is inserted in the vertical direction from the upper end is recessed in the fixture body; And at least a portion of the inner wall of the insertion groove for the abutment is provided in a shape to fit the outer wall of the abutment, provided in a wavy shape along the circumferential direction of the fixture body, the abutment for the fixture body It may include; an abutment rotation blocking unit for preventing the relative rotation of
  • expressions such as “have”, “may have”, “includes”, or “may include” indicate the presence of a corresponding characteristic (eg, a numerical value, function, operation, or component such as a part). and does not exclude the presence of additional features.
  • expressions such as “A or B”, “at least one of A or/and B”, or “one or more of A or/and B” may include all possible combinations of the items listed together.
  • “A or B”, “at least one of A and B”, or “at least one of A or B” means (1) includes at least one A, (2) includes at least one B; Or (3) it may refer to all cases including both at least one A and at least one B.
  • first, second, first, or “second” used in this document can modify various elements, regardless of order and/or importance, and It is used only to distinguish it from other components, and does not limit the components.
  • first wearer device and the second wearer device may represent different wearer devices regardless of order or importance.
  • a first component may be referred to as a second component, and similarly, the second component may also be renamed as a first component.
  • a component eg, a first component is "coupled with/to (operatively or communicatively)" to another component (eg, a second component);
  • another component eg, a second component
  • the certain element may be directly connected to the other element or may be connected through another element (eg, a third element).
  • a component eg, a first component
  • another component eg, a second component
  • FIG. 1 is a perspective view of a fixture 100a of a dental implant according to a first embodiment of the present invention
  • FIG. 2 is a cross-sectional view taken along line CSa1-CSa1' of FIG. 1
  • FIG. 3 is CSa2-CSa2' of FIG. It is a cross-sectional view of a line.
  • Teeth are the primary means of digestion that break down food and send it to the stomach, and although it may differ from person to person, there are usually about 28 teeth.
  • the fixture 100a of the dental implant according to the first embodiment of the present invention is placed in the gum of the lost tooth as a means to replace the root of the tooth.
  • the fixture 100a of the dental implant according to the first embodiment of the present invention may include a fixture body 110a and an abutment rotation preventing unit 120a.
  • the fixture main body (110a) is implanted in the alveolar bone in the gum, before implantation, a drilling operation is preceded for implantation of the fixture main body (110a). That is, a hole drilled in a predetermined position of the alveolar bone is processed.
  • the fixture body 110a may be made of titanium (Ti, Titanium) or a titanium (Ti) alloy that does not have a negative reaction to the human body.
  • the fixture body 110a of this embodiment may be used for the first implant procedure, or is directly implanted in the corresponding alveolar bone without supplementing a predetermined bone substitute material in the damaged area when the procedure fails. It may be used for emergency use.
  • This fixture body (110a) is provided with a screw portion (111a) formed in a spiral shape along the outer wall periphery, the abutment insertion groove (112a) for the abutment is inserted from the upper end in the vertical direction (-y-axis direction) It may be formed by being depressed.
  • the screw portion (111a) is implanted in the alveolar bone, and may have a plurality of threads to be fixed to the alveolar bone after the implantation is completed.
  • the abutment rotation blocking portion 120a is provided in a shape that is shape-fitted to the outer wall of the abutment to at least a portion of the inner wall of the insertion groove 112a for the abutment, and is waved along the circumferential direction of the fixture body 110a. It is provided in a shape to prevent the relative rotation of the abutment with respect to the fixture body (110a).
  • the abutment rotation blocking portion 120a includes a plurality of concave portions 121a bent toward the outer wall of the fixture body 110a and a plurality of convex portions bent toward the rotation axis Ra of the fixture body 110a ( 122a) may be provided.
  • Each of the plurality of concave portions 121a and the plurality of convex portions 122a may intersect along the circumferential direction of the fixture body 110a. That is, each of the plurality of concave portions 121a and the plurality of convex portions 122a is not continuously connected, and any one of the plurality of convex portions 122a is positioned in any one of the plurality of concave portions 121a. It may be formed in a wavy shape.
  • the plurality of concave portions 121a may be formed to overlap with the virtual circle Ca1′ in which the centrifugal Ca1 is positioned on the rotation axis Ra of the fixture body 110a.
  • the plurality of concave portions 121a have a cross-section on a plane (xz plane) perpendicular to the rotation axis Ra of the fixture body 110a is the rotation axis Ra of the fixture body 110a. It may overlap with the virtual circle Ca1' on which the centrifugal Ca1 is located. In this case, the radius of the virtual circle Ca1 ′ may be lengthened or shortened corresponding to the position of the centrifugal Ca1 on the rotation axis Ra of the fixture body 110a, or may be the same.
  • the plurality of convex portions 122a may be formed to overlap the circle of curvature Ca2' in which the center of curvature Ca2 is positioned outside the virtual circle Ca1'.
  • the cross section of the plurality of convex portions 122a on a plane (xz plane) perpendicular to the rotation axis Ra of the fixture body 110a may overlap the circle of curvature Ca2′.
  • the center of curvature Ca2 may be located outside the virtual circle Ca1'.
  • the torque transmission rate can be improved by receiving the torque from the implantation apparatus through surface contact rather than point contact with the implantation apparatus (drill).
  • the fixture body 110a may further include a female screw part 113a.
  • the female threaded portion 113a is disposed in the lower region of the abutment rotation blocking portion 120a among the insertion grooves for the abutment 112a in the vertical direction from the bottom of the abutment rotation blocking portion 120a ( -y-axis direction), the male screw portion of the abutment screw coupling the abutment to the fixture body 110a may be fastened.
  • the abutment may be coupled and fixed to the fixture body 110a.
  • FIG. 4 is a dental implant system 10a including a dental implant fixture 100a according to the first embodiment of the present invention and an abutment 100a' of the dental implant according to the first embodiment of the present invention. ) is a perspective view.
  • the dental implant system 10a includes the fixture 100a of the dental implant according to the first embodiment described above and the abutment 100a' of the dental implant according to the first embodiment of the present invention. ) may be included.
  • the fixture 100a of the dental implant according to the first embodiment and the abutment 100a' of the dental implant according to the first embodiment of the present invention may be fitted and coupled to each other.
  • the abutment 100a ′ of the dental implant according to the first embodiment may have an insertion protrusion 110a ′ having a shape corresponding to the shape of the abutment rotation preventing unit 120a at a lower portion thereof.
  • the insertion protrusion 110a' is bent toward the central axis of the abutment 100a' of the dental implant according to the first embodiment, and a plurality of abutments formed in a shape corresponding to the shape of the plurality of convex parts 122a.
  • An abutment convex portion 112a' may be provided.
  • Each of the plurality of abutment concave portions 111a ′ and the plurality of abutment convex portions 112a ′ is not continuously connected, and a plurality of abutment concave portions 111a ′ are located in any one of the plurality of abutment concave portions 111a ′. Any one of the butt convex portions 112a' may be positioned to form a wave shape.
  • the abutment 100a' of the dental implant according to the first embodiment may be prevented from rotating by the plurality of concave portions 121a and the plurality of convex portions 122a.
  • FIG. 5 is a cross-sectional view of a fixture 100b for a dental implant according to a second embodiment of the present invention.
  • the fixture 100b of the dental implant according to the second embodiment of the present invention has a fixture body 110b compared to the fixture 100a of the dental implant according to the first embodiment of the present invention. It further includes a tapered portion (114b), only the position of the female screw portion (113b) and the abutment rotation blocking portion (120b) of the fixture body (110b) is different, other components and roles may be the same . Accordingly, repeated descriptions will be omitted.
  • the fixture 100b of the dental implant according to the second embodiment includes a fixture body 110b including a screw portion 111b, an insertion groove for an abutment 112b, a female screw portion 113b and a tapered portion 114b, and , may include an abutment rotation blocking portion 120b including a plurality of concave portions 121b and a plurality of convex portions 122b.
  • the tapered portion 114b is disposed in the upper region of the abutment rotation blocking portion 120b among the abutment insertion grooves 112b, and is formed at the upper end of the fixture body 110b of the fixture body 110b. It may be formed to be tapered so that the inner diameter becomes shorter toward the lower end.
  • the tapered portion 114b may have a circular cross-section on a plane (xz plane) perpendicular to the rotation axis Rb of the fixture body 110b, and the area and radius of the cross-section are the lower ends of the fixture body 110b, respectively. It can become smaller and shorter as time goes on.
  • the abutment other than the abutment inserted into the abutment rotation blocking part 120b is inserted into the tapered part 114b due to the external force applied to the abutment in the vertical direction (+y-axis direction) due to the abutment It is possible to prevent the separation of the fixture from the fixture body (110b).
  • the tapered portion 114b of the fixture body 110b is provided in a tapered shape in which the diameter is gradually reduced along the implantation direction, and is formed in a structure similar to natural teeth and is stable, and when implanted By suppressing bone heating that occurs, implantation is facilitated, and initial fixation force can be increased.
  • FIG. 6 is a dental implant system 10b including a dental implant fixture 100b according to a second embodiment of the present invention and an abutment 100b' of a dental implant according to a second embodiment of the present invention. ) is a perspective view.
  • the dental implant system 10b includes a fixture 100b for a dental implant according to the above-described second embodiment and an abutment 100b' for a dental implant according to the second embodiment of the present invention. ) may be included.
  • the fixture 100b of the dental implant according to the second embodiment and the abutment 100b' of the dental implant according to the second embodiment of the present invention may be fitted and coupled to each other.
  • the abutment 100b ′ of the dental implant according to the second embodiment may have an insertion protrusion 110b ′ having a shape corresponding to the shape of the abutment rotation preventing unit 120b at a lower portion thereof.
  • the insertion protrusion 110b' is bent toward the central axis of the abutment 100b' of the dental implant according to the second embodiment, and a plurality of abutments formed in a shape corresponding to the shape of the plurality of convex parts 122b.
  • An abutment convex portion 112b' may be provided.
  • Each of the plurality of abutment concave portions 111b ′ and the plurality of abutment convex portions 112b ′ is not connected continuously, and a plurality of abutment concave portions 111b ′ are located in any one of the plurality of abutment concave portions 111b ′. Any one of the butt convex portions 112b ′ may be positioned to form a wave shape.
  • rotation of the abutment 100b' of the dental implant according to the second embodiment may be inhibited by the plurality of concave portions 121b and the plurality of convex portions 122b.
  • FIG. 7 is a dental implant system 10b including a dental implant fixture 100b according to a second embodiment of the present invention and an abutment 100b” of a dental implant according to a third embodiment of the present invention. ) is a perspective view.
  • the dental implant system 10b includes the fixture 100b of the dental implant according to the second embodiment described above and the abutment 100b” of the dental implant according to the third embodiment of the present invention. ) may be included.
  • the fixture 100b of the dental implant according to the second embodiment and the abutment 100b” of the dental implant according to the third embodiment of the present invention may be rotationally coupled to each other.
  • the abutment (100b ′′) of the dental implant according to the third embodiment has an abutment screw (110b ′′) having a shape corresponding to the female thread part (113b) of the fixture body (110b) in the lower portion to be formed.
  • the abutment screw 110b ′′ may include a female threaded part 113b of the abutment 100b ′′ of the dental implant according to the third embodiment and a male threaded part 111b ′′ screwed together.
  • FIG. 8 is a perspective view of a fixture 100c of a dental implant according to a third embodiment of the present invention
  • FIG. 9 is a cross-sectional view taken along line CSc1-CSc1' of FIG. 8
  • FIG. 10 is CSc2-CSc2' of FIG. It is a cross-sectional view along the line
  • FIG. 11 is a cross-sectional perspective view along the line CSc1-CSc1' of FIG. 8 .
  • the fixture 100c of the dental implant according to the third embodiment of the present invention is compared to the fixture 100b of the dental implant according to the second embodiment of the present invention, components and The role is the same, but only the female screw portion 113c and the abutment rotation blocking portion 120c of the fixture body 110c overlap and are formed, and other components and roles may be the same. Accordingly, repeated descriptions will be omitted.
  • the fixture 100c of the dental implant includes a fixture body 110c including a screw portion 111c, an insertion groove for an abutment 112c, a female screw portion 113c and a tapered portion 114c, and , may include an abutment rotation blocking portion 120c including a plurality of concave portions 121c and a plurality of convex portions 122c.
  • the plurality of concave portions 121c may be formed to overlap the virtual circle Cc1 ′ in which the centrifugal Cc1 is positioned on the rotation axis Rc of the fixture body 110c.
  • the plurality of concave portions 121c have a cross section on a plane (xz plane) perpendicular to the rotation axis Rc of the fixture body 110c is the rotation axis Rc of the fixture body 110c. It may overlap with the virtual circle Cc1' in which the centrifugal Cc1 is located. In this case, the radius of the virtual circle Cc1 ′ may be lengthened or shortened corresponding to the position of the centrifugal Cc1 on the rotation axis Rc of the fixture body 110c, or may be the same.
  • the plurality of convex portions 122c may be formed to overlap the circle of curvature Cc2 ′ in which the center of curvature Cc2 is positioned outside the virtual circle Cc1 ′.
  • the cross section of the plurality of convex portions 122c on a plane (xz plane) perpendicular to the rotation axis Rc of the fixture body 110c may overlap the circle of curvature Cc2 ′.
  • the center of curvature Cc2 of the circle of curvature Cc2' may be located outside the virtual circle Cc1'.
  • the female screw portion 113c is, as shown in FIG. 11, the male screw portion of the abutment is screwed, and a plurality of convex portions 122c bent toward the rotation axis Rc of the fixture body 110c and overlapping female screws.
  • a mountain portion 113c' may be provided.
  • the female threaded portion 113c is at least a portion of the plurality of convex portions 122c from the rotation axis Rc of the fixture body 110c toward the outer wall of the fixture body 110c. .
  • the fixture 100c of the dental implant has a shape corresponding to the shape of the abutment rotation-blocking unit 120c and includes an abutment having a lower portion and an abutment having a male screw portion formed in the lower portion. Either one may be alternatively combined.
  • a dental implant system 10c including a dental implant fixture 100c according to a third embodiment of the present invention and an abutment 100c' of a dental implant according to a fourth embodiment of the present invention. ) is a perspective view.
  • the dental implant system 10c includes a fixture 100c of a dental implant according to the above-described third embodiment and an abutment 100c' of a dental implant according to the fourth embodiment of the present invention. ) may be included.
  • the fixture 100c of the dental implant according to the third embodiment and the abutment 100c' of the dental implant according to the fourth embodiment of the present invention may be coupled to each other by fitting.
  • the abutment 100c ′ of the dental implant according to the fourth embodiment may have an insertion protrusion 110c ′ having a shape corresponding to the shape of the abutment rotation preventing unit 120c at a lower portion thereof.
  • the insertion protrusion 110c' is bent toward the central axis of the abutment 100c' of the dental implant according to the fourth embodiment and has a plurality of abutments formed in a shape corresponding to the shape of the plurality of convex portions 122c.
  • An abutment convex portion 112c ′ may be provided.
  • Each of the plurality of abutment concave portions 111c ′ and the plurality of abutment convex portions 112c ′ is not continuously connected, and a plurality of abutment concave portions 111c ′ are located in any one of the plurality of abutment concave portions 111c ′. Any one of the butt convex portions 112c ′ may be positioned to form a wave shape.
  • rotation of the abutment 100c' of the dental implant according to the fourth embodiment may be inhibited by the plurality of concave portions 121c and the plurality of convex portions 122c.
  • FIG. 13 is a dental implant system 10c including a dental implant fixture 100c according to a third embodiment of the present invention and an abutment 100c” of a dental implant according to a fifth embodiment of the present invention. ) is a perspective view.
  • the dental implant system 10c includes a dental implant fixture 100c according to the above-described third embodiment and an abutment 100c” of a dental implant according to a fifth embodiment of the present invention. ) may be included.
  • the fixture 100c of the dental implant according to the third embodiment and the abutment 100c” of the dental implant according to the fifth embodiment of the present invention may be rotationally coupled to each other.
  • the abutment (100c ′′) of the dental implant according to the fifth embodiment has an abutment screw (110c ′′) having a shape corresponding to the female thread part (113c) of the fixture body (110c) at the lower portion to be formed.
  • the abutment screw 110c ′′ may include a female thread part 113c of the abutment 100c ′′ of the dental implant according to the fifth embodiment and a male thread part 111c ′′ that is screw-fastened.
  • FIG. 14 is a perspective view of a fixture 100d of a dental implant according to a fourth embodiment of the present invention
  • FIG. 15 is a cross-sectional view taken along line CSd1-CSd1' of FIG. 14
  • FIG. 16 is CSd2-CSd2' of FIG. It is a cross-sectional view of a line.
  • the fixture 100d of the dental implant according to the fourth embodiment of the present invention is compared to the fixture 100a of the dental implant according to the first embodiment of the present invention, the fixture body portion (110d) replaces the insertion groove (112a) for the abutment and includes an insertion groove (112d) for the screw, the position of the female screw portion (113b) and the abutment rotation blocking portion (120d) of the fixture body (110b) Only they are different, and other components and roles may be the same. Accordingly, repeated description will be omitted.
  • the fixture 100d of the dental implant according to the fourth embodiment has a screw portion 111d, a fixture body 110d including a screw insertion groove 112d and a female screw portion 113d, and a plurality of concave portions 121d. And it may include an abutment rotation blocking portion (120d) including a plurality of convex portions (122d).
  • the fixture body 110d may be formed by recessing an insertion groove 112d for a screw into which the abutment is inserted in the longitudinal direction (-y-axis direction) from the upper end.
  • the female screw portion 113d is formed over the entire area of the insertion groove 112d for the screw, and the male screw portion of the abutment screw for coupling the abutment to the fixture body 110d may be fastened thereto.
  • the abutment rotation blocking portion 120d may be formed with a step difference from the screw portion 111d in the upper region of the screw portion 111d formed on the outer wall of the fixture body 110d.
  • the plurality of concave portions 121d may be formed to overlap the virtual circle Cd1 ′ in which the centrifugal Cd1 is positioned on the rotation axis Rd of the fixture body 110d.
  • the plurality of concave portions 121d has a cross section on a plane (xz plane) perpendicular to the rotation axis Rd of the fixture body 110d is the rotation axis Rd of the fixture body 110d. It may overlap with the virtual circle Cd1' on which the centrifugal Cd1 is located. In this case, the radius of the virtual circle Cd1 ′ may be lengthened or shortened in correspondence with the position of the centrifugal Cd1 on the rotation axis Rd of the fixture body 110d, or may be the same.
  • the plurality of convex portions 122d may be formed to overlap the circle of curvature Cd2' in which the center of curvature Cd2 is positioned outside the virtual circle Cd1'.
  • the cross section of the plurality of convex portions 122d on a plane (xz plane) perpendicular to the rotation axis Rd of the fixture body 110d may overlap the circle of curvature Cd2′.
  • the center of curvature Cd2 of the circle of curvature Cd2' may be located outside the virtual circle Cd1'.
  • FIG. 17 is a dental implant system 10d including a dental implant fixture 100d according to a third embodiment of the present invention and an abutment 100d' of a dental implant according to a fourth embodiment of the present invention. ) is a perspective view.
  • the dental implant system 10d includes a fixture 100d for a dental implant according to the above-described third embodiment and an abutment 100d' for a dental implant according to the fourth embodiment of the present invention. ) may be included.
  • the fixture 100d of the dental implant according to the third embodiment and the abutment 100d' of the dental implant according to the fourth embodiment of the present invention may be fitted and coupled to each other.
  • an insertion groove 110d' having a shape corresponding to the shape of the abutment rotation preventing unit 120d may be formed in the lower portion.
  • Each of the plurality of abutment concave portions 111d ′ and the plurality of abutment convex portions 112d ′ is not continuously connected, and a plurality of abutment concave portions 111d ′ is located between the plurality of abutment concave portions 111d ′. Any one of the butt convex portions 112d ′ may be positioned to form a wave shape.
  • rotation of the abutment 100d' of the dental implant according to the fourth embodiment may be inhibited by the plurality of concave portions 121d and the plurality of convex portions 122d.
  • the fixture body (110a, ..., 110d) of the present embodiment may be provided with a cutting edge formed along the circumferential direction (cutting edge).
  • a cutting edge portion by forming a sharp tip, it is possible to more easily implant the fixture body (110a, ..., 110d).
  • the cutting edge part of this embodiment is provided to have a circular groove shape in the shape of the cut cross-section.
  • the sharp tip is emphasized to increase the resistance when implanting the alveolar bone, As the shape of the screw portion is reduced and the surface area is rather reduced, the bonding force with the alveolar bone is reduced.
  • the cutting edge portion provided in the groove shape as in the present embodiment increases the surface area of the screw portion to improve the coupling force when the fixture main body 110a, ..., 110d is installed, and accordingly, it is possible to increase the initial fixing force.

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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 concerne une fixation d'implant dentaire qui peut comprendre : un corps de fixation pourvu d'une partie de vis en forme de spirale le long d'une circonférence d'une paroi externe et ayant une rainure d'insertion de butée dans laquelle une butée est insérée et qui est formée pour être en retrait de l'extrémité supérieure de celle-ci dans une direction verticale ; et une partie d'arrêt de rotation de butée qui est disposée sur au moins une partie d'une paroi interne de la rainure d'insertion de butée de manière à avoir une forme adaptée à la paroi externe de la butée, et a une forme ondulée le long d'une direction circonférentielle du corps de fixation pour arrêter une rotation relative de la butée par rapport au corps de fixation.
PCT/KR2020/007819 2020-06-12 2020-06-17 Fixation d'implant dentaire Ceased WO2021251535A1 (fr)

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KR1020200071757A KR102290876B1 (ko) 2020-06-12 2020-06-12 치과용 임플란트의 픽스쳐
KR10-2020-0071757 2020-06-12

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KR102698005B1 (ko) * 2021-12-30 2024-08-23 오스템임플란트 주식회사 치과용 임플란트
KR102680039B1 (ko) * 2021-12-30 2024-07-02 오스템임플란트 주식회사 치과용 임플란트
KR102803165B1 (ko) * 2022-06-29 2025-05-08 오스템임플란트 주식회사 임플란트, 어버트먼트 및 이를 포함하는 어버트먼트 어셈블리

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JP2003525690A (ja) * 2000-03-06 2003-09-02 ピル−ホーン チョウング 即固定できる膨張型インプラント
US20060172257A1 (en) * 2005-02-01 2006-08-03 Niznick Gerald A Externally-threaded endosseous dental implants with internal abutment-engaging and fixture mount-engaging surfaces
KR20160018578A (ko) * 2013-06-10 2016-02-17 스트라우만 홀딩 에이쥐 치아 임플란트 소켓 배열
KR20190050812A (ko) * 2016-09-08 2019-05-13 덴탈포인트 아게 치아 보철 시스템
KR20190065621A (ko) * 2017-12-04 2019-06-12 주식회사 메가젠임플란트 치과용 임플란트의 픽스츄어

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KR101092314B1 (ko) 2009-11-13 2011-12-09 주식회사 메가젠임플란트 치과용 임플란트의 픽스츄어 및 그를 구비하는 임플란트 시술용 세트

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JP2003525690A (ja) * 2000-03-06 2003-09-02 ピル−ホーン チョウング 即固定できる膨張型インプラント
US20060172257A1 (en) * 2005-02-01 2006-08-03 Niznick Gerald A Externally-threaded endosseous dental implants with internal abutment-engaging and fixture mount-engaging surfaces
KR20160018578A (ko) * 2013-06-10 2016-02-17 스트라우만 홀딩 에이쥐 치아 임플란트 소켓 배열
KR20190050812A (ko) * 2016-09-08 2019-05-13 덴탈포인트 아게 치아 보철 시스템
KR20190065621A (ko) * 2017-12-04 2019-06-12 주식회사 메가젠임플란트 치과용 임플란트의 픽스츄어

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