KR102323728B1 - Dental implant system - Google Patents

Abstract

A dental implant system is disclosed. According to one aspect of the present invention, the implant to be placed in the alveolar bone; an abutment fastened to the implant; and a cap fastened to the insertion region of the upper end of the abutment, wherein the cap includes a support portion extending downward from the inner upper surface and being supported in contact with the inner circumferential surface of the groove formed in the abutment, the support portion, A dental implant system may be provided, including a support surface inclinedly formed on the outer circumferential surface of the support portion so as to be supported in contact with the inner circumferential surface of the groove portion.

Description

Dental implant system {DENTAL IMPLANT SYSTEM}

The present invention relates to a dental implant system.

A dental implant system is known as one of the surgical methods for repairing a natural tooth defect.

8 is a schematic diagram illustrating an example of a conventionally known dental implant system.

Referring to FIG. 8 , in general, the dental implant system 10 may include a fixture 11 , an abutment 12 , a connection screw 13 , and the like.

The fixture 11 may be implanted in the alveolar bone of the defect site. An external screw thread 11a for implantation and fixing may be provided on the outer peripheral surface of the fixture 11 , and an internal thread 11c for fastening the abutment 12 may be provided on the inner peripheral surface.

The abutment 12 is fastened to the fixture 11 so that a lower portion thereof may be disposed in the space 11b inside the fixture 11 . A portion of the upper end of the abutment 12 may be disposed exposed to the outside of the fixture 11 . A hole 12a for fastening with the fixture 11 may be provided in the center of the abutment 12 .

The connecting screw 13 may couple the abutment 12 and the fixing body 11 . When the coupling is made, the upper part including the head of the connecting screw 13 may be disposed inside the abutment 12, and the remaining lower part is to be coupled with the internal screw thread 11c in the space 11b of the fixture 11. can

Although not shown, the artificial tooth may be fastened to the upper portion of the abutment 12 by an adhesive means such as cement.

The conventional dental implant system as described above has a structure in which a fixture, an abutment, and the like are completely fixedly coupled. Therefore, when various loads are applied to the abutment due to mastication motion, these loads are transferred to the fixture as it is. This may lead to a decrease in the fixing force of the fixture or, in severe cases, may cause a problem of damaging the fixture.

Laid-Open Patent Publication No. 10-2009-0110136 (2009.10.21.) Laid-Open Patent Publication No. 10-2014-0130773 (2014.11.12.) Registered Patent Publication No. 10-0842318 (2008.07.01.) Registered Patent Publication No. 10-1091350 (2011.12.07.)

Embodiments of the present invention are intended to provide a dental implant system capable of buffering the occlusal force with fine mobility.

In addition, embodiments of the present invention to provide a dental implant system capable of minimizing the use of the adhesive means and coupling the crown.

According to one aspect of the present invention, the implant to be placed in the alveolar bone; an abutment fastened to the implant; and a cap fastened to the insertion region of the upper end of the abutment, wherein the cap includes a support portion extending downward from the inner upper surface and being supported in contact with the inner circumferential surface of the groove formed in the abutment, the support portion, A dental implant system may be provided, including a support surface inclinedly formed on the outer circumferential surface of the support portion so as to be supported in contact with the inner circumferential surface of the groove portion.

According to another aspect of the present invention, it relates to an abutment of a dental implant system to which a cap or a crown is fastened to an upper end thereof, comprising: an insertion region provided in a portion of the upper end and inserted and fastened to the cap or crown; and a groove portion extending downwardly from the upper surface, wherein the insertion region is formed such that the insertion surface has a first inclination angle with respect to a vertical direction, and the groove portion has an inner circumferential surface at a second inclination angle with respect to the vertical direction. Is formed to have a, the first and second inclination angles, which are formed to be different from each other, the abutment of the dental implant system may be provided.

The dental implant system according to embodiments of the present invention has a structure in which a cap or a crown is mounted to a fixture, and external forces in various directions applied to the cap or crown may be supported by the inclination of the insertion surface or the support part. .

In addition, in the dental implant system according to embodiments of the present invention, the cap or crown may have a fine degree of mobility by the separation preventing unit, so that characteristics more similar to those of natural teeth may be implemented.

In addition, in the dental implant system according to embodiments of the present invention, the cap or crown may be properly supported through the insertion surface and the inclination of the support part, the separation preventing part, etc., so that the use of the adhesive may be omitted or minimized.

1A is an exploded perspective view of a dental implant system according to a first embodiment of the present invention.
1B is a longitudinal cross-sectional view of the dental implant system shown in FIG. 1A .
1C is a longitudinal cross-sectional exploded view of the dental implant system shown in FIG. 1A .
2A is a longitudinal cross-sectional view of a dental implant system according to a second embodiment of the present invention.
FIG. 2B is a longitudinal cross-sectional exploded view of the dental implant system shown in FIG. 2A .
3 is a longitudinal cross-sectional exploded view of a dental implant system according to a third embodiment of the present invention.
4 is a longitudinal cross-sectional exploded view of a dental implant system according to a fourth embodiment of the present invention.
5 is a longitudinal cross-sectional exploded view of a dental implant system according to a fifth embodiment of the present invention.
6 is a longitudinal cross-sectional exploded view of a dental implant system according to a sixth embodiment of the present invention.
7 is a longitudinal cross-sectional exploded view of a dental implant system according to a seventh embodiment of the present invention.
8 is a schematic diagram illustrating an example of a conventionally known dental implant system.

Hereinafter, embodiments of the present invention will be described with reference to the accompanying drawings. However, it should be noted that the following examples are provided to help the understanding of the present invention, and the scope of the present invention is not limited to the following examples. The following embodiments are provided to more completely explain the present invention to those with average knowledge in the relevant technical field, and detailed descriptions for known configurations that may unnecessarily obscure the technical gist of the present invention to be omitted.

1A is an exploded perspective view of a dental implant system according to a first embodiment of the present invention. 1B is a longitudinal cross-sectional view of the dental implant system shown in FIG. 1A . 1C is a longitudinal cross-sectional exploded view of the dental implant system shown in FIG. 1A .

The dental implant system 100 according to the first embodiment may be intended to be used for a single missing tooth. However, the selection of the dental implant system according to each embodiment may be made by the judgment of the operator, and the use target is not necessarily limited to the exemplified bar.

1A to 1C , the dental implant system 100 of the present embodiment may include a fixture 110 .

The fixture 110 may be implanted and fixed in the alveolar bone. The lower region of the fixture 110 may be disposed inside the alveolar bone, and the upper region of the fixture 110 may be disposed exposed to the outside of the gums. A cap 120 or a crown 160 may be fastened to the upper end of the fixture 110 .

The fixture 110 may include an implant 110a and an abutment 110b.

The implanted body 110a and the abutment 110b may be coupled to each other to form one fixed body 110 .

The implant 110a may generally form a lower region of the fixture 110 . The implant 110a may have a screw thread formed on its outer circumferential surface, thereby being implanted and fixed in the alveolar bone.

A fastening groove having an open upper end may be formed in the center of the implant 110a. A thread may be formed on the inner circumferential surface of the fixture 110a forming the fastening groove, whereby the abutment 110b may be fastened to the fixture 110a.

The abutment 110b may generally form an upper region of the fixture 110 . The lower region of the abutment 110b may be inserted into the implant 110a and fastened to the thread of the inner circumferential surface of the implant 110a. The upper region of the abutment 110b may be disposed exposed to the upper side of the implant 110a.

The abutment 110b may have an insertion region 112 in an upper portion thereof. A cap 120 or a crown 160 may be fastened to the insertion region 112 . In other words, the insertion region 112 may be defined as a partial region of the upper end of the abutment 110b to which the cap 120 or crown 160 is fastened.

The abutment 110b may have an exposure area 111 in a predetermined range below the insertion area 112 . The exposed region 111 may be defined between a lower region of the abutment 110b inserted and fastened by the implant 110a and an upper region of the abutment 110b to which the cap 120 or crown 160 is fastened. Alternatively, the exposed area 111 may be defined as an exposed area between the upper end of the implant 110a and the lower end of the cap 120 or crown 160 . The exposed area 111 may be generally intended as a portion in contact with the gums.

If necessary, the exposed area 111 may be formed to have an outer surface inclined to a predetermined degree in a form in which the cross-sectional area becomes smaller toward the lower side.

The insertion region 112 may have an insertion surface 112a forming an outer circumferential surface. Here, the insertion surface 112a may be inclined at a predetermined angle. Specifically, the outer diameter of the insertion region 112 may be formed to gradually increase toward the lower side, and thus the insertion surface 112a may be formed to be inclined downwardly to a predetermined extent toward the radially outer side. Hereinafter, the inclination angle formed by the insertion surface 112a in the vertical direction will be referred to as a first inclination angle a1.

In the center of the insertion region 112 , a groove 113 having an open top may be formed. The groove portion 113 may be formed to extend downwardly from the upper end of the insertion region 112 toward the inside of the insertion region 112 by a predetermined degree. The protrusion 122 of the cap 120 or the crown 160 may be disposed in the groove 113 .

The groove portion 113 may include an upper region 113a and a lower region 113b.

The upper region 113a corresponds to the support 122a provided on the protrusion 122 . The peripheral surface 113c of the upper region 113a may be inclined at a predetermined angle. Specifically, the circumferential surface 113c of the upper region 113a may be formed to be inclined downward while forming a second inclination angle a2 with respect to the vertical direction.

A support portion 122a provided on the protrusion 122 may be disposed in the upper region 113a, and the circumferential surface 113c may be in contact with the support surface 122c of the support portion 122a. This will be described in detail in relation to the cap 120 .

The lower region 113b corresponds to the rotation preventing portion 122b provided in the protrusion 122 . The lower region 113b contacts the support surface 122c of the anti-rotation part 122b so as to limit the rotation of the anti-rotation part 122b or the cap 120 about the longitudinal central axis C. can be supported

Meanwhile, the dental implant system 100 of the present embodiment may include a cap 120 .

The cap 120 may be fastened to the upper end of the fixture 110 or the abutment 110b. The inner circumferential surface 124 of the cap 120 may be disposed to face the insertion surface 112a provided on the abutment 110b. The inner circumferential surface 124 of the cap 120 may be in close contact with the insertion surface 112a or may be disposed with a predetermined clearance. However, even in the latter case, the space between the inner circumferential surface 124 and the insertion surface 112a of the cap 120 is intended to be a closed space, and the inflow of foreign substances may be restricted through the sealing part 140 to be described later. .

The inner circumferential surface 124 of the cap 120 may be inclined at a predetermined angle to correspond to the inclination of the insertion surface 112a. That is, in response to the insertion surface 112a of the abutment 110b forming a first inclination angle a1 with respect to the vertical direction, the inner circumferential surface 124 of the cap 120 has a third inclination angle a3 with respect to the vertical direction. ) may be formed to be inclined. The third inclination angle a3 may be the same as or corresponding to the first inclination angle a1.

A protrusion 122 may be provided on the inner upper surface of the cap 120 .

The protrusion 122 may be formed to extend from the inner upper surface of the cap 120 downward to a predetermined degree. The protrusion 122 is intended to be fastened to the aforementioned groove 113 . That is, the protrusion 122 may be inserted and fastened into the groove 113 through the upper opening of the groove 113 .

The protrusion 122 may include a support 122a.

The support part 122a may be inserted and fastened into the groove part 133 to support the cap 120 against an external force (eg, a lateral external force) applied to the cap 120 . The support part 122a may have a support surface 122c on the outer circumferential surface. The support surface 122c may be supported in contact with the insertion surface 112a of the aforementioned groove portion 113 .

The support surface 122c may be inclined at a predetermined angle. That is, the outer diameter of the support part 122a may be formed to be gradually smaller toward the lower side, and thus the support surface 122c may form a fourth inclination angle a4 with respect to the vertical direction.

The fourth inclination angle a4 of the support surface 122c may be the same as or corresponding to the second inclination angle a2 of the upper region 113a of the groove 113 described above. Accordingly, the support surface 122c may be supported while forming a contact surface inclined at a predetermined angle with the circumferential surface 113c of the upper region 113a.

Here, the fourth inclination angle a4 may be formed at a different angle from the third inclination angle a3 . Alternatively, the second inclination angle a2 or the fourth inclination angle a4 may be formed at a different angle from the first inclination angle a1 or the third inclination angle a3 . More preferably, the second inclination angle a2 or the fourth inclination angle a4 may be formed to be larger than the first inclination angle a1 or the third inclination angle a3 by a predetermined degree. The difference in inclination angle as described above allows the support force to be provided for loads or external forces in more various directions.

If necessary, the protrusion 122 may include a rotation preventing portion 122b.

The anti-rotation part 122b may be formed to extend downwardly from the lower end of the support part 122a. However, if necessary, the vertical positions of the rotation preventing part 122b and the supporting part 122a may be changed.

The anti-rotation part 122b may have at least one supporting surface for rotation of the cap 120 about the longitudinal central axis C. Alternatively, the rotation preventing portion 122b may include at least one support surface supported in contact with the lower region 113b of the groove portion 113 . For example, the anti-rotation part 122b may be formed in a polygonal column shape, and may be supported in contact with the lower region 113b of the groove part 113 formed in a shape corresponding thereto. According to one embodiment, the anti-rotation part 122b may be formed in the shape of a square, hexagon, or octagonal pole. Accordingly, rotation of the cap 120 or the crown 160 with respect to the fixture 110 about the longitudinal central axis C may be restricted.

As shown, the support 122a and the anti-rotation part 122b are integrated with the cap 120, but if necessary, the support part 122a or the anti-rotation part 122b may have a separate and independent structure. . For example, the protrusion 122 including the support portion 122a and the rotation preventing portion 122b is implemented in the form of one assembly member and assembled to the cap 120 , the support portion 122a is integrally formed with the cap 120 . A method of forming and implementing only the anti-rotation part 122b in the form of an assembly member and assembling it to the support part 122a may be considered.

On the other hand, a coupling groove 121 may be formed on the outer peripheral surface of the cap 120 . The coupling groove 121 is for increasing the coupling force between the cap 120 and the crown 160 , and may be formed to extend approximately in the circumferential direction along the outer circumferential surface of the cap 120 , and a plurality of the cap 120 . It may be arranged densely up and down on the outer circumferential surface. However, the shape, arrangement, etc. of the coupling groove 121 may be appropriately changed as necessary, and is not limited thereto. In addition, the coupling groove 121 is for coupling between the cap 120 and the crown 160, and may be appropriately omitted when the cap 120 and the crown 160 are integrated as shown below.

If necessary, the cap 120 may be integrated with the crown 160 . In this case, the above-described configuration of the cap 120 (such as the protrusion 122 ) may be implemented in an integrated form with the crown 160 at a corresponding position. This may be in a form similar to that in which the boundary between the cap 120 and the crown 160 is omitted from the illustrated bar.

Meanwhile, the dental implant system 100 of this embodiment may include a buffer 150 .

The buffer unit 150 may be mounted on the upper end of the fixture 110 . Specifically, the buffer 150 is formed in the form of a ring (ring), it can be mounted on the outer periphery of the upper end of the fixture (110).

The buffer unit 150 may include an outer circumferential surface 152 disposed toward the inner circumferential surface 124 of the cap 120 and an upper side surface 151 disposed toward the inner upper surface of the cap 120 . have.

The cushioning unit 150 may include an elastic body in part or all of it so as to elastically support the fine fluctuations of the cap 120 or the crown 160 . For example, the buffer 150 may be partially or entirely formed of silicon.

On the other hand, the dental implant system 100 of the present embodiment may include a separation prevention unit (130).

The separation preventing unit 130 may be fastened between the cap 120 and the fixed body 110 , thereby constraining the separation of the cap 120 with respect to the fixed body 110 . The separation prevention unit 130 may be mounted and disposed at a position spaced downward by a predetermined distance from the upper end of the fixture 110 . Alternatively, the separation prevention unit 130 may be disposed at a position spaced downward from the buffer unit 150 described above by a predetermined degree.

The separation prevention part 130 may be formed of a C-ring having elasticity. However, as long as the separation preventing unit 130 can appropriately restrain the separation of the cap 120 , the shape is not necessarily limited to the illustrated C-ring.

On the other hand, preferably, the separation prevention part 130 may be formed of a part or all of titanium (titanium) material.

A first fixing groove 114 may be formed at a position corresponding to the fixing body 110 to which the separation preventing unit 130 is fastened. In addition, a second fixing groove 123 may be formed at a position corresponding to the cap 120 to which the separation preventing unit 130 is fastened. The first and second fixing grooves 114 and 123 may be disposed to face each other to form a fixing groove 131 for fastening the separation preventing unit 130 .

The lateral width W1 of the fixing groove 131 may be formed to be larger than the lateral thickness W2 of the separation preventing part 130 by a predetermined degree. Alternatively, the lateral thickness W2 of the separation preventing portion 130 may be formed to be smaller than the overall lateral width W1 of the fixing groove 131 by a predetermined degree.

In such a case, the separation preventing unit 130 may be intended to elastically deform toward the first fixing groove 114 for insertion and fastening of the cap 120 to the fixing body 110 . In addition, when the cap 120 is fully inserted and fastened, the separation preventing unit 130 may be intended to be in close contact with the second fixing groove 123 by elasticity. In this case, the separation preventing part 130 may be generally disposed between the first fixing groove 114 and the second fixing groove 123 . Accordingly, in such a state, the cap 120 may be restricted from detaching from the fixing body 110 by the detachment preventing unit 130 .

Meanwhile, the dental implant system 100 of the present embodiment may include a sealing unit 140 .

The sealing part 140 may be disposed in a lower region of the insertion region 112 . Alternatively, the sealing unit 140 may be disposed to be spaced apart from each other by a predetermined distance below the above-described separation preventing unit 130 .

The sealing part 140 is formed in a ring shape, and may be mounted and disposed between the outer circumferential surface of the fixture 110 and the inner circumferential surface 124 of the cap 120 . The sealing part 140 may be generally intended to be disposed on the lower side of the insertion surface 112a, and to limit the inflow of foreign substances from the exposed area 111 to the gap between the cap 120 and the fixture 110 . can

As shown, the sealing part 140 may be mounted and supported on the fixture 110 through a groove formed along the outer circumferential surface of the abutment 110b. However, if necessary, the sealing part 140 may be mounted and supported through a groove formed along the inner circumferential surface 124 of the cap 120 , or a separate part separable from the fixed body 110 or the cap 120 . It may be implemented in a form, etc., and is not necessarily limited to the illustrated bar.

The sealing part 140 may include an elastic body in part or all of it so as to have sufficient sealing force. For example, the sealing part 140 may be partially or entirely formed of silicon.

The dental implant system 100 as described above may be installed in the order in which the fixture 110 is implanted on the alveolar bone of the recipient, and the cap 120 or crown 160 is placed on the upper end of the fixture 110 . .

Here, the cap 120 or the crown 160 may be mounted and supported on the fixture 110 by the separation preventing part 130 . The separation preventing unit 130 may be intended to support an external force in the upper (separation) direction applied to the cap 120 or the crown 160 in general.

In addition, a transverse external force applied to the cap 120 or the crown 160, or an external force in various directions may be supported by the inclination of the insertion region 112 and the support portion 122a. In particular, since the inclination of the insertion region 112 and the inclination of the support 122a form opposite directions, the support surface can be secured against external forces in various directions.

For this reason, the cap 120 or the crown 160 may be installed on the fixture 110 by omitting the use of an adhesive or using only a minimum amount of adhesive. Preferably, in the cap 120 or crown 160, the use of adhesive is omitted at the boundary with the fixture 110, etc., and the inclination of the separation prevention part 130, the insertion region 112, and the inclination of the support part 122a. may be installed on the fixed body 110 by the Omission of such an adhesive may have advantages in operation convenience, possibility of correction and supplementation after operation, side effects due to adhesive, and the like.

2A is a longitudinal cross-sectional view of a dental implant system according to a second embodiment of the present invention. FIG. 2B is a longitudinal cross-sectional exploded view of the dental implant system shown in FIG. 2A .

The dental implant system 200 according to the second embodiment may be intended to be used for a plurality of missing teeth. However, the selection of the dental implant system according to each embodiment may be made by the judgment of the operator, and the use target is not necessarily limited to the exemplified bar.

In the following, for convenience of description, detailed descriptions of the same or similar configurations as those of the above-described embodiments will be omitted, and descriptions will be made focusing on different configurations.

Referring to FIGS. 2A to 2B , the dental implant system 200 of the second embodiment may include a fixture 210 , a cap 220 , a separation preventing unit 230 , and a sealing unit 240 .

In the dental implant system 200 of the second embodiment, the buffer 150 of the first embodiment is omitted.

The fixture 210 may include an implant 210a and an abutment 210b. The implant 210a and the abutment 210b may be formed similarly to the corresponding configuration of the first embodiment described above.

However, the dental implant system 200 of the second embodiment is intended to be used for a plurality of missing teeth, and compared with the first embodiment described above, the first inclination angle ( a1) may be formed to be large to a predetermined degree. That is, in the second embodiment, the first inclination angle a1 of the insertion surface 212a may be formed to be larger than the first inclination angle a1 (refer to FIG. 1C ) of the first embodiment described above by a predetermined degree.

When the first inclination angle a1 as described above is to repair a plurality of missing teeth, the implantation direction or angle of each fixture 210 may be partially different, which may make it difficult to fasten the cap 220 or the crown point is taken into account.

On the other hand, a groove portion 213 may be formed in the upper central portion of the abutment 210b. A peripheral surface 213c of a partial upper portion of the groove 213 may contact the protrusion 222 , and the peripheral surface 213c may have a second inclination angle a2 . This is similar to the circumferential surface 113c of the first embodiment described above. However, in the second embodiment, the second inclination angle a2 may be formed to be larger than the second inclination angle a2 (refer to FIG. 1C ) of the first embodiment described above by a predetermined degree.

However, in the groove portion 213 of the second embodiment, the lower region 113b (refer to FIG. 1C ) is omitted, unlike the groove portion 113 of the first embodiment described above. In the case of the second embodiment, since it is intended to be used for a plurality of missing teeth, a separate structure for restricting the rotation of the cap 22 is not required.

On the other hand, the cap 220 may be fastened to the upper region of the abutment 210b. The cap 220 may have a protrusion 222 on the inner upper surface. Here, the protrusion 222 may include only the support 222a. That is, the anti-rotation part 122b (refer to FIG. 1C ) of the first embodiment described above may be omitted. This corresponds to the omission of the lower region 113b in the groove portion 213 .

The cap 220 may be inclined so that the inner circumferential surface 224 has a third inclination angle a3, which corresponds to the first inclination angle a1 of the insertion surface 212a. In addition, the protrusion 222 or the support portion 222a may be inclined so that the support surface 222c has a fourth inclination angle a4, which is at the second inclination angle a2 of the circumferential surface 213c of the groove portion 213. corresponded The first and third inclination angles a1 and a3 may be formed to be different from the second and fourth inclination angles a2 and a4, and preferably, the first and third inclination angles a1 and a3 are the second and fourth inclination angles a2. , a4) may be formed to be smaller than that of a4).

Meanwhile, the separation preventing part 230 and the sealing part 240 may be formed similarly to the first embodiment described above.

3 is a longitudinal cross-sectional exploded view of a dental implant system according to a third embodiment of the present invention.

The dental implant system 300 according to the third embodiment may be intended to be used for a single missing tooth. This corresponds to the first embodiment described above.

Referring to FIG. 3 , the dental implant system 300 according to the third embodiment includes a fixture 310 including an implant 310a and an abutment 310b, and a cap 320 that is fastened to the abutment 310b. ) may be included. The fixture 310 and the cap 320 may be formed the same as or similar to the first embodiment.

The dental implant system 300 according to the third embodiment may include a separation preventing unit 330 . The separation preventing unit 330 may be formed in the same or similar manner as in the first embodiment.

Meanwhile, in the dental implant system 300 according to the third embodiment, the sealing unit 140, the buffer unit 150, and corresponding components of the first embodiment may be omitted.

4 is a longitudinal cross-sectional exploded view of a dental implant system according to a fourth embodiment of the present invention.

The dental implant system 400 according to the fourth embodiment may be intended to be used for a plurality of missing teeth. This corresponds to the second embodiment described above.

Referring to FIG. 4 , the dental implant system 400 according to the fourth embodiment is a fixture 410 including an implant 410a and an abutment 410b, and a cap 420 that is fastened to the abutment 410b. ), and may include a separation preventing part 430 for restraining the separation of the cap 420 . The fixture 410, the cap 420, and the separation prevention part 430 may be formed in the same or similar manner to the corresponding configurations of the second embodiment described above.

In the fourth embodiment, the sealing part 240 and corresponding components of the second embodiment may be omitted.

5 is a longitudinal cross-sectional exploded view of a dental implant system according to a fifth embodiment of the present invention.

The dental implant system 500 according to the fifth embodiment may be intended to be used for a single missing tooth. This corresponds to the first embodiment described above.

Referring to FIG. 5 , the dental implant system 500 according to the fifth embodiment includes a fixture 510 including an implant 510a and an abutment 510b, and a cap 520 that is fastened to the abutment 510b. ) may be included. It may be formed identically or similarly to the corresponding configurations of the first embodiment described above.

The dental implant system 500 according to the fifth embodiment may include a separation preventing unit 530 for restraining the separation of the cap 520 . This corresponds to the separation prevention unit 130 of the first embodiment in function.

However, unlike the first embodiment, the separation preventing part 530 of the fifth embodiment may be composed of a protrusion 531 and a groove 532 . The protrusion 531 may be formed to extend in a ring shape along the outer circumferential surface of the abutment 510b, and the groove 532 may be formed to extend along the inner circumferential surface of the cap 520 to correspond thereto. In some cases, the inner circumferential surface of the cap 520 may be provided with a groove, and the protrusion may be provided on the outer circumferential surface of the abutment 510b. The protrusions 531 and the grooves 532 are coupled to each other to limit the separation of the cap 520 .

6 is a longitudinal cross-sectional exploded view of a dental implant system according to a sixth embodiment of the present invention.

The dental implant system 600 according to the sixth embodiment may be intended to be used for a plurality of missing teeth. This corresponds to the second embodiment described above.

Referring to FIG. 6 , the dental implant system 600 according to the sixth embodiment includes a fixture 610 including an implant 610a and an abutment 610b, and a cap 620 that is fastened to the abutment 610b. ) may be included. It may be formed identically or similarly to the corresponding configurations of the second embodiment described above.

In addition, the dental implant system 600 according to the sixth embodiment may include a separation preventing unit 630 for restraining the separation of the cap 620 . The separation prevention part 630 may be composed of a protrusion 631 formed on the abutment 610b or the cap 620, and a groove 632 formed on the cap 620 or the abutment 610b to correspond thereto. This is similar to the fifth embodiment described above.

7 is a longitudinal cross-sectional exploded view of a dental implant system according to a seventh embodiment of the present invention.

The dental implant system 700 according to the seventh embodiment may be intended to be used for a plurality of missing teeth. This corresponds to the second embodiment described above.

Referring to FIG. 7 , the dental implant system 700 according to the seventh embodiment includes a fixture 710 including an implant 710a and an abutment 710b, and a cap 720 that is fastened to the abutment 710b. ) may be included. It may be formed identically or similarly to the corresponding configurations of the second embodiment described above.

In addition, the dental implant system 700 according to the seventh embodiment may include a separation preventing unit 730 for restraining the separation of the cap 720 .

Here, the separation preventing unit 730 may include a ball 731 and an elastic body 732 . The ball 731 may be disposed on the outer circumferential surface of the abutment 710b so that a portion is received in the receiving groove 734 . The receiving groove 734 may be formed to extend from the outer peripheral surface of the abutment 710b toward the abutment 710b by a predetermined degree.

The elastic body 732 may be disposed inside the receiving groove 734 to elastically support the ball 731 . The ball 731 may be elastically supported to the outside of the receiving groove 734 by the elastic body 732 . As long as the elastic body 732 has a predetermined elastic force and can elastically support the ball 731, for example, it may be composed of a compression spring as shown.

The ball 731 may be elastically coupled to the ball fastening groove 733 by the elastic body 732 . Thereby, the cap 720 may be restricted from detaching. The ball fastening groove 733 may be formed to extend in the form of a circular ring along the inner circumferential surface of the cap 720 .

More preferably, the elastic body 732 may elastically support the ball 731 in a direction inclined at a predetermined angle a5 with respect to the horizontal direction. For example, the elastic body 732 may form an angle a5 of about 45 degrees with respect to the horizontal direction, and may elastically support the ball 731 . In this case, the receiving groove 734 for accommodating the elastic body 732 may also be formed to be inclined at a corresponding angle.

A plurality of sets of the balls 731 and the elastic body 732 may be provided. That is, a plurality of balls 731 and corresponding elastic bodies 732 may be disposed along the outer circumferential surface of the upper end of the abutment 710b. For example, 3 to 5 sets of the ball 731 and the elastic body 732 may be provided along the outer circumferential surface of the abutment 710b. However, the number of the balls 731 and the elastic body 732 is not necessarily limited thereto.

In the above, although embodiments of the present invention have been described, those of ordinary skill in the art can add, change, delete or add components within the scope that does not depart from the spirit of the present invention described in the claims. The present invention may be variously modified and changed by, etc., and this will also be included within the scope of the present invention.

100: dental implant system (first embodiment) 110: fixture
120: cap 130: escape prevention part
140: sealing part 150: buffer part
160: Crown

Claims (11)

implants to be placed on the alveolar bone;
an abutment fastened to the implant; and
Including; a cap fastened to the insertion area of the upper end of the abutment;
The cap is
a support part extending downward from the inner upper surface and being supported in contact with the inner circumferential surface of the groove part formed in the abutment; and
Doedoe in contact with the insertion surface formed on the abutment, the inner circumferential surface formed to be inclined with a third inclination angle with respect to the vertical direction; includes,
The support part,
and a support surface formed to be inclined on the outer periphery of the support part with a fourth inclination angle with respect to the vertical direction so as to be supported in contact with the inner circumferential surface of the groove part,
The third inclination angle and the fourth inclination angle are
It is formed to be inclined in directions opposite to each other with respect to the vertical direction, and is formed to have a different inclination angle, respectively,
the abutment,
A dental implant system, comprising: a lower portion of a partial region coupled to the implant; delete delete The method according to claim 1,
The cap is
A dental implant system formed integrally with the crown. delete The method according to claim 1,
Including a rotation preventing portion extending from the support portion,
The anti-rotation unit,
and at least one support surface in contact with the inner circumferential surface of the groove portion at a corresponding position to limit rotation of the cap about its longitudinal central axis. The method according to claim 1,
It is provided between the cap and the abutment, comprising a separation preventing portion for restraining the separation of the cap, dental implant system. 8. The method of claim 7,
and a fixing groove to which the separation prevention part is fastened;
The fixing groove is
a first fixing groove formed on the outer circumferential surface of the abutment; and
is formed by; a second fixing groove formed on the inner circumferential surface of the cap at a position corresponding to the first fixing groove;
The total lateral width formed by the first and second fixing grooves is,
A dental implant system that is formed to be larger than the lateral thickness of the separation preventing part. The method according to claim 1,
and a sealing part for limiting the inflow of foreign substances between the cap and the abutment,
The sealing part,
Part or all of which contains an elastic body, is formed in a ring shape, and is arranged in close contact between the outer peripheral surface of the insertion area and the inner circumferential surface of the cap in the lower area of the insertion area. for implant systems. 8. The method of claim 7,
The escape prevention unit,
a ball in elastic contact with the ball fastening groove formed along the inner circumferential surface of the cap; and
It includes; is disposed in the receiving groove formed in the abutment, elastic body for elastically supporting the ball toward the ball fastening groove;
The ball is
A dental implant system that is elastically supported at a predetermined angle with respect to the horizontal direction by the elastic body. delete

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