KR20070099747A - Dental Implant System - Google Patents

Abstract

The present invention relates to a dental implant. The dental implant according to the present invention comprises a central portion, at least one proximal plate-like protrusion, and at least one pin. The central portion has a first portion, a second portion, a horizontal portion, and a vertical portion. The proximal plate-like protrusion protrudes from the first portion of the central portion along the horizontal direction portion and extends along the vertical direction portion. The pin protrudes from the second portion of the central portion along the horizontal direction. The dental implant of the present invention is more concerned with the horizontal force, which is generally ignored by other systems. In general, by the design of the vertical proximal plate-like protrusions and the clearance, the implant can more accurately cope with the horizontal force from the bite.

Description

Dental Implant System {DENTAL IMPLANT SYSTEM}

1 is a view showing a state after treatment of a dental implant according to the prior art.

Figure 2a is a proximal side front view of a dental implant according to the first embodiment of the present invention.

Figure 2b is a ball side front view of a dental implant according to the first embodiment of the present invention.

Figure 2c is a perspective view of the bottom of the dental implant in accordance with a first embodiment of the present invention.

Figure 2d is a plan view of a dental implant according to the first embodiment of the present invention.

Figure 2e is a perspective view upwardly of the dental implant according to the first embodiment of the present invention.

Figure 2f is a view showing a state after the treatment of the dental implant according to the first embodiment of the present invention.

Figure 3a is a proximal side front view of a dental implant according to a second embodiment of the present invention.

Figure 3b is a ball side front view of a dental implant according to a second embodiment of the present invention.

Figure 3c is a perspective view from below of a dental implant in accordance with a second embodiment of the present invention.

Figure 3d is a plan view of a dental implant according to a second embodiment of the present invention.

3E is an upward perspective view of a dental implant in accordance with a second embodiment of the present invention;

4 is a partially enlarged view of a trimming neck according to the present invention;

5A, 5B, and 5C are plan views showing different arrangements of the proximal plate-like protrusions.

Figure 6 is a proximal side front view of a dental implant with a proximal plate-like protrusion having an inclination angle.

Explanation of symbols on the main parts of the drawings

2: dental implant 10: neck

11: Upper proximal plate-like protrusion 12: Ball side and tongue side clearance

20: pin 30: lower proximal plate-shaped protrusion

60: central portion 61: first portion

62: second part 63: third part

102 trimming rim 111 cut top edge

The present invention relates to a dental implant, and more particularly to a dental implant having a proximal plate-like protrusion.

The occlusal force can be divided into vertical and horizontal forces. The normal force on the implant is the compressive force at the bottom and the shear force at the side. Horizontal force is a tipping force on the implant, which means that both ends are pressed in different directions.

Since the horizontal force towards the proximal side is jointly supported by the proximal teeth (or implants), this horizontal force has less effect on the alveolar bone. The dental implant is secured to the bone and resists the bite force. Therefore, ensuring that the implant sufficiently secures the alveolar bone against occlusal force and that the alveolar bone is not broken is a basic and most important consideration in dental implant design.

Since the advent of titanium dental implants, many dental implants have retained the shape of natural roots that have not been improved. In practice, however, the support mechanism of the natural tooth and the support mechanism of the implant are not the same. Natural teeth are hung on the bone by ligaments, and the implant is anchored to the bone. It is not easy to imitate the shape of the root.

As shown in FIG. 1, a conventional dental implant 80 includes a central portion 81 and a plurality of pins 83. The shape of the center portion 81 is a tapered cylindrical portion. The taper of the central portion 81 of the dental implant 80 reduces the resistance of the vertical and horizontal surfaces. As can be seen clinically, the deep portion of the alveolar bone always has a wide space of the implant. In addition, a disadvantage of many current implants is a thread or pin 83. The thread or pin is basically a horizontal projection from the center portion 81. The pins (horizontal protrusions) fix the bone in such a way that they are provided less for horizontal forces than for vertical forces. This explains why the success rate of implants in the maxilla is always lower than the success rate in the mandible. Implants in the maxilla receive more horizontal force than implants in the mandible.

US Patent No. 4,738,623, which discloses a dental implant system that has been considered by many dentists as one of the best implant systems, has the same problem as described above. As with other implants, insertion into the bone is the most vulnerable. Conventional dental implants take these problems seriously. According to the instructions, a conventional dental implant is implanted 1-2 mm below the alveolar crest. Next, a portion of the bone is removed and the abutment and crown are connected to a conventional dental implant. However, as clinically observed, the bones are eventually reprocessed with shoulders of conventional dental implants. Although the material of the implant and the abutment post are the same, the pier columns are not osseointegrated. Micro-rotation can occur in the pier columns. The non-osteolytic column in the bone becomes a pathway for harmful bacteria. In some cases, bone deterioration persists and exposure of the implant is inevitable. Such exposure often occurs in terms of supporting horizontal forces. This exposure embarrasses patients and annoys dentists.

The present invention has been proposed to solve the above problems, the object of which is to provide a dental implant that can more accurately cope with the horizontal force from the occlusion by the design of the vertical proximal plate-like protrusion and the clearance.

The dental implant of the present invention for achieving the above object comprises a central portion, at least one proximal plate-like projection, and at least one pin. The central portion has a first portion, a second portion, a horizontal portion, and a vertical portion. The proximal plate-like protrusion protrudes from the first portion of the central portion along the horizontal direction portion and extends along the vertical direction portion. The pin protrudes from the second portion of the central portion along the horizontal direction.

The dental implant of the present invention is more concerned with the horizontal force, which is generally ignored by other systems. By designing the proximal plate-like protrusions and clearances on the cheek and tongue sides, the dental implant can more accurately cope with the horizontal forces from the bite.

The proximal plate-like protrusion anchors the bone with respect to the horizontal force and deviates from most normal force. The plate-shaped protrusion protrudes from the cylindrical portion in the distal or mesial direction. In the horizontal portion of the proximal plate-like protrusion, there is no proximal plate-like protrusion on the ball side and the tongue side. Since the cheek and tongue plates are always thin and vulnerable to dental implants, the bone plates should not carry too much force.

The dental implant further comprises a neck disposed in the first portion of the central portion. By extending with the neck, the clearance and the neck provide more space for the bone plate and transmit less force to the bone plate. The implant provides a space where the lamina is not obstructed by any one of the protrusions and enhances the appearance because the likelihood of exposing the neck is reduced. The implant copes effectively with the horizontal force by a plate-like protrusion surrounded by a wide bone structure.

Before describing the dental implant of the present invention, several terms will be described. 'Bottom' is not related to gravity, but refers to the lower bone, and 'top' refers to the area near the upper body or crown. In addition, 'buccal' means cheek or face and 'lingual' means tongue or palate. 'Vertical' means the direction along the longitudinal axis of the dental implant, 'horizontal' means the direction perpendicular to the 'vertical'.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings.

2A, 2B, 2C, 2D, 2E, and 2F show a dental implant according to a first embodiment of the present invention. A dental implant 2 which receives more horizontal force than vertical force (from occlusion) is called a type A implant. Type A implants are generally for the maxillary anterior bone. 3A, 3B, 3C, 3D, and 3E illustrate a dental implant according to a second embodiment of the present invention. The dental implant 3 which receives more vertical force is called a type B implant.

Dental implants of the present invention are generally cylindrical, tapered implants for later connection of piers for prosthetics.

As shown in FIGS. 2A-2F, the dental implant 2 has a central portion 60, at least one upper proximal plate-like protrusion 11, at least one pin 20, and at least one lower proximal plate-like protrusion ( 30). The central portion 60 has a first portion 61, a second portion 62, a third portion 63, a horizontal portion, and a vertical portion. In this embodiment, the central portion 60 is cylindrical and not tapered.

The central portion 60 further includes a neck portion 10 disposed at the first portion 61. The height of the neck 10 is approximately 0.5 to 3.0 mm. The neck 10 has a rounded edge 101, the edge 101 facing inward upward relative to the longitudinal axis of the dental implant. The neck 10 is preferably formed as narrow as possible mechanically. The neck having such a design has a rim 102, and the rim 102 of the neck 10 is narrow. The rim 102 facing the ball side is trimmed to have the curvature of the ball side gum. As shown in Figs. 2A and 4, the trimming rim 102 is preferably formed downward from the proximal side to the ball side and concave. The trimming rim 102 prevents the surgeon from implanting the implant deep into the bone without fear of exposing the dental implant to the cheek side. Trimming rim 102 also preferably corresponds to asymmetrically reabsorbed ridges. The depth of the trimming rim 102 is 0.5 to 2 mm.

Following the neck 10, the upper proximal plate-like protrusion 11 and the ball-side and tongue-side clearances 12 will be described. The upper proximal plate-shaped protrusion 11 protrudes from the first portion 61 of the central portion 60 along the horizontal direction and extends along the vertical direction. In this embodiment, a plurality of upper proximal plate-like protrusions is provided in the first portion 61 of the central portion 60. Preferably the upper proximal plate-like protrusion 11 is cut wide at the upper edge forming the cut upper edge 111.

5A, 5B, and 5C show another arrangement of the upper proximal plate-like protrusion in accordance with the present invention. The upper plate-like protrusion is approximately 90 degrees tangential from the center portion 60 to the center portion 60 as shown in Fig. 5A, or the protrusion can be easily manufactured as shown in Figs. 5B and 5C or can fix many bones against a horizontal force. It is formed at an angle. Preferably the upper plate-like protrusion does not extend beyond the tangent of the ball or tongue area.

The plate-like protrusion is advantageous in securing the bone with respect to the horizontal force and deviates from the vertical force. This design can prevent overload. The proximal plate protrusion is parallel to an adjacent proximal plate-like projection adjacent the proximal plate protrusion.

As shown in Figs. 2A to 2F, the upper proximal plate-like protrusion 11 is disposed on the proximal side of the first portion 61, and the first portion 61 is a ball-side clearance 12 without the upper proximal plate-like protrusion. Tongue clearance 12. The ball side and the tongue clearance 12 are disposed on the ball side and the tongue side of the first portion 61, respectively. That is, the upper proximal plate-like protrusions are not formed on the ball side and the tongue side in the horizontal portion of the upper plate-like protrusion 11. The clearance 12 is a protrusion. Since the ball and tongue bone plates are always thin and vulnerable in dental implants, it is good practice to ensure that the bone plates do not carry too much force. By extending with the neck 10, the clearance 12 and the neck 10 provide more space for the bone plate and transmit less force to the bone plate.

The dental implant of the present invention copes efficiently with the horizontal force by the proximal plate-like protrusions 11 surrounded by wide bone tissue. Thus, the likelihood of bone deterioration is reduced. The length of the first portion 61 having the upper proximal plate-like protrusion is approximately 1/4 to 2/5 of the total length of the central portion 60. The plate-like protrusion is not provided at the center of the center because the horizontal force is least affected at the center of the center.

The proximal plate-like protrusion includes at least one positioning proximal plate-like protrusion 112, and the positioning proximal plate-like protrusion 112 extends outside of the outer diameter of the pin 20. Accordingly, the width of the positioning proximal plate protrusion 112 is greater than the width of the proximal plate protrusion 11. In this embodiment, two positioning proximal plate-like protrusions 112 are arranged on the proximal side for determining the position of the dental implant 2. It also facilitates maintaining the dental implant in the bone to have the correct orientation after treatment.

The proximal plate-like protrusion also includes at least one pulling proximal plate-like protrusion 112. In this embodiment, the positioning proximal plate protrusion is a pulling proximal plate protrusion. The length of the pooled proximal plate-like protrusion 112 is longer than the length of the proximal plate-like protrusion 11 and the pooling proximal plate-like protrusion 112 extends to the neck 10. The pulling proximal plate-like protrusion 112 has a pulling hole 116 for receiving a pulling device for pulling the dental implant 2. In addition, the pulling proximal plate-like protrusion has a pulling groove for receiving a pulling device for pulling the dental implant.

The proximal plate-like protrusion 11 includes at least one normal proximal plate-like protrusion 113. In the present embodiment, the length of the reference proximal plate protrusion 113 is shorter than the length of the pooling proximal plate protrusion 112, and the width of the reference proximal plate protrusion 113 is the positioning proximal plate protrusion 112. Is less than the width of. That is, the width of the reference proximal plate-shaped protrusion 113 is equal to the outer diameter of the pin 20.

The proximal plate-like protrusion 11 includes at least one small proximal plate-like protrusion 114. In this embodiment, the length of the small proximal plate-like protrusion 114 is shorter than the length of the reference proximal plate-like protrusion 113, and the width of the small proximal plate-like protrusion 114 is greater than that of the reference proximal plate-like protrusion 113. Less than width

Therefore, the length of the proximal plate-like protrusion 11 gradually decreases from the pulled proximal plate-like protrusion 112 to the small proximal plate-like protrusion 114, and the width of the proximal plate-like protrusion 11 is the positioning proximal plate-like protrusion. It gradually decreases from the protrusion 112 to the small proximal plate-like protrusion 114.

The upper proximal plate-like protrusion has an angle corresponding to the longitudinal axis of the dental implant. In the first embodiment, the angle of the plate-shaped protrusion is zero degrees. However, the angle of the proximal plate-like protrusion is between 0 degrees and 45 degrees as shown in FIG. That is, the proximal plate-shaped protrusion 11 has an inclination angle between 0 degrees and 45 degrees.

Meanwhile, after the plate-shaped protrusion 11, the pin 20 protrudes from the second portion 62 of the center portion 60 along the horizontal direction. In the present embodiment, the plurality of pins are annularly provided on the outer surface of the second portion 62 of the central portion 60. The pin 20 is not tapered. The length of the second portion 62 with the pin is approximately one fifth to one half of the length of the central portion 60.

The lower proximal plate-like protrusion 30 is disposed in the third portion 63 of the central portion 60. The length of the third portion 63 having the lower proximal plate-like protrusion is approximately 1/4 to 2/5 of the total length of the central portion 60. The protruding angle of the lower proximal plate-like protrusion is proposed to be orthogonal to the tangent of the central portion 60. The lower proximal plate-like protrusion 30 has a cut lower edge 301. In the vicinity of the bottom face 31 of the central portion 60, the edge of the plate-shaped protrusion 30 is cut to correspond to the bottom face of the bony socket, that is, to correspond to the drill shape.

The central portion 60 further includes a bottom 31 and a well 13. The bottom face 31 is flat. The valley 13 is connected to the pier and has an opening at the top of the central portion 60.

As shown in FIGS. 3A, 3B, 3C, 3D, and 3E, the dental implant 3 includes a central portion 70, at least one proximal plate-like protrusion 41, and at least one pin 50. It includes. The central portion 70 has a first portion 71, a second portion 72, a horizontal portion, and a vertical portion. The central portion 70 further includes a neck portion 40 disposed at the first portion 71. The neck 40 of the second embodiment is similar to the neck 10 of the first embodiment. However, the neck 40 is shorter. The neck 40 includes a rim 401. The rim 401 is flat or less trimmed. The length of the neck 40 is proposed to be between 0.5 and 2 mm and the depth of the trimming rim is between 0.5 and 2 mm.

The proximal plate-like protrusion 41 protrudes from the first portion 71 of the central portion 70 along the horizontal direction and extends along the vertical direction. The proximal plate-like protrusions 41 and the clearance 42 on the ball side and the tongue side are similar to those described above in the first embodiment. But the ratio is different. The length of the first portion having the proximal plate-like protrusion 41 is approximately 1/6 to 2/5 of the total length of the central portion 70. The positioning proximal plate-like protrusions and the pulling proximal plate-like protrusions 412 are similar to those described above in the first embodiment.

The pin 50 protrudes from the second portion 72 of the central portion 70 along the horizontal direction. The central portion 70 further includes a bottom 51 and a valley 43. The pin 50 reaches the bottom surface 51 without reducing its diameter. The bottom surface 51 is concave. At the bottom, the bone receives a lot of compression. The concave bottom 51 distributes the force. This is particularly important for short dental implants with large diameters. If any part is cross-shaped, a specially designed drill is required to form the bottom of the socket-shaped bone.

Although the present invention has been described based on the above-described embodiments, it should be understood that the present invention is not limited to the above-described embodiments and configurations. The present invention includes various modifications and equivalent embodiments, and various elements of the above-described embodiments are represented by various combinations and configurations described above, and may include more, less, or only as a single component. It is in range.

According to the dental implant of the present invention configured as described above, by the design of the vertical proximal plate-like protrusion and the clearance there is an effect that can be more accurately and efficiently cope with the horizontal force from the occlusion.

Claims (26)

A central portion having a first portion, a second portion, a horizontal portion and a vertical portion; At least one proximal plate-shaped protrusion protruding from the first portion of the central portion along the horizontal direction and extending along the vertical direction; And At least one pin protruding from the second portion of the central portion along the horizontal direction; Dental Implants. The method of claim 1, The proximal plate protrusion Has the same angle as the longitudinal axis of the dental implant, The angle of the proximal plate protrusion is between 0 degrees and 45 degrees Dental Implants. The method of claim 2, The angle of the plate-shaped protrusion is 0 degrees Dental Implants. The method of claim 1, The proximal plate-like protrusions, Parallel to adjacent proximal plate-like protrusions adjacent to the proximal plate-like protrusions Dental Implants. The method of claim 1, The proximal plate-like protrusions, With cut top edge Dental Implants. The method of claim 1, The proximal plate protrusion Disposed on the proximal side of the first portion, The first portion has a ball side clearance and a tongue clearance without the proximal plate-like protrusion, The clearances are respectively disposed on the ball side and the tongue side of the first portion. Dental Implants. The method of claim 6, The ball side clearance and tongue clearance Protruding Dental Implants. The method of claim 1, The proximal plate protrusion At least one upper proximal plate-like protrusion and at least one lower proximal plate-like protrusion, The central portion further includes a third portion, The upper proximal plate-like protrusion is disposed in the first portion and the lower proximal plate-like protrusion is disposed in the third portion. Dental Implants. The method of claim 8, The length of the first portion having the upper proximal plate-like protrusion is 1/4 to 2/5 of the total length of the central portion Dental Implants. The method of claim 8, The length of the third portion with the lower proximal plate-like protrusion is 1/4 to 2/5 of the total length of the central portion Dental Implants. The method of claim 8, The lower proximal plate protrusion With cut bottom edge Dental Implants. The method of claim 1, The length of the first portion with the proximal plate-like protrusions is 1/6 to 2/5 of the entire length of the central part Dental Implants. The method of claim 1, The central part Further comprising a neck disposed in the first portion, The height of the neck is 0.5mm to 3.0mm Dental Implants. The method of claim 13, The neck has a trimming rim Dental Implants. The method of claim 14, The trimming rim of the neck Trimmed from the proximal side to the cheek side such that the slope of the concave surface is similar to the curvature of the cheek gum Dental Implants. The method of claim 14, The depth of the trimming rim Between 0.5mm and 2mm Dental Implants. The method of claim 1, The pin is Disposed after the proximal plate-like protrusion and the clearance Dental Implants. The method of claim 1, The length of the second portion with the pin is 1/5 to 1/2 of the total length of the central portion Dental Implants. The method of claim 1, The central part Further comprising a concave bottom Dental Implants. The method of claim 1, The pin is It is provided in an annular portion at the outer edge of the central portion Dental Implants. The method of claim 1, The proximal plate protrusion At least one positioning proximal plate-like protrusion, The positioning proximal plate-like protrusion extends outside the outer diameter of the pin Dental Implants. The method of claim 1, The proximal plate protrusion At least one pulling proximal plate-like protrusion, The length of the pulled proximal plate protrusion is longer than the length of the proximal plate protrusion. Dental Implants. The method of claim 22, The pulled proximal plate protrusion Having a pooling hole Dental Implants. The method of claim 22, The pulled proximal plate protrusion Having a pooling groove Dental Implants. The method of claim 22, The proximal plate protrusion At least one reference proximal plate-like protrusion, The width of the reference proximal plate-like protrusion is equal to the outer diameter of the pin, The length of the reference proximal plate protrusion is shorter than the length of the pooled proximal plate protrusion. Dental Implants. The method of claim 25, The proximal plate protrusion At least one small proximal plate-like protrusion, The length of the small proximal plate-like protrusion is shorter than the length of the reference proximal plate-like protrusion, The width of the small proximal plate-like protrusion is smaller than the width of the reference proximal plate-like protrusion. Dental Implants.

Images