KR20130058410A

KR20130058410A - Healing abutment

Info

Publication number: KR20130058410A
Application number: KR1020110124401A
Authority: KR
Inventors: 류재호; 김병국
Original assignee: 오스템임플란트 주식회사
Priority date: 2011-11-25
Filing date: 2011-11-25
Publication date: 2013-06-04
Also published as: WO2013077672A1; KR101296741B1

Abstract

The present invention relates to a healing abutment, and more particularly, to a healing abutment inserted into an implant fixture and having a natural tooth shape.
A fixture insertion unit inserted into the implant fixture;
Healing gear disposed on the fixture insertion portion, and has a body portion including a gum generating portion having a cross-sectional shape corresponding to the tooth cross-sectional shape of the natural tooth to be replaced, to create a gum shape corresponding to the cervical portion It is about butts.

Description

Healing abutment

The present invention relates to a healing abutment, and more particularly, the position of the implanted implant fixture and the position of the final prosthesis do not coincide with each other, or even in a tailored procedure considering natural tooth shape, the final abutment is not performed separately. It is about a healing abutment that allows easy fastening.

In the case of a missing tooth, a bridge was used in which a denture was inserted or a surrounding portion of a tooth was used as a column and a missing portion was covered with a metal or the like. However, such a procedure has several problems, such as a denture or a bridged artificial tooth having a weak chewing force and adversely affecting surrounding teeth. As a result, an implant procedure has emerged as a procedure of advanced dental care. This implant procedure forms an artificial tooth root in the alveolar bone, by using the artificial tooth which is the final prosthesis made similar to the actual tooth using the actual tooth to obtain the effect of using the actual tooth.

The implant procedure is used to form a recessed groove using a tool such as a drill in order to implant a fixture in the alveolar bone where the tooth is missing, and performs tapping as a selective operation for firmly implanting the fixture inside the recessed groove. Subsequently, after the fixture is embedded in the groove, the cover screw is fastened to cover the gum to prevent foreign substances from penetrating into the fixture, and the first surgery is completed. Then, as a second operation, after about 3 to 6 months, the sutured gums are incised again, the cover screw is removed from the fixture, and the healing abutment is selected by considering the type of abutment to be fastened. Tighten. The healing abutment at this time is to ensure that the gums are formed cleanly on the fixture before the abutment is fastened to the fixture, and after the gums suitable for the abutment are generated approximately two to three weeks after the fastening, After removal of the abutment, the abutment is combined, and the bone of the artificial tooth is joined to the final prosthesis having a natural tooth shape on the upper side of the abutment to complete the implant procedure.

However, the implant fixture to be placed in the alveolar bone is a problem that must be performed in consideration of various oral conditions, and often the position of the dental prosthesis to be repaired and the position of the implant fixture do not coincide. In particular, the shape of the tooth to be repaired and the shape of the healing abutment do not coincide with each other, so that the patient may suffer from gum compression after the abutment and the final prosthesis.

For example, as shown in FIG. 1, the common cervical cross section of a natural tooth may have various shapes such as triangular, elliptical, and rectangular shapes. In contrast, conventional healing abutments have a circular cross section. Healing abutment is fastened to the implant fixture 100 previously implanted in the alveolar bone 140, as shown in Figure 2, after 2 to 3 weeks after removal of the gum 141 grows in the required form. After the healing abutment 110 is removed, the abutment 120 and the final prosthesis 130 are treated as shown in FIG. 3, wherein the shape, position, and the like between the existing healing abutment and the final prosthesis are performed. Due to the difference in pressure, the gum is pressed. In some cases, anesthesia may occur, or in severe cases, the gum may be incised and fastened. In addition, the pressure of the gums may cause inflammation in the area.

In addition, in recent years, considering the trend of the shape of the implant abutment from the circular to the actual natural tooth shape for the production of functional and aesthetic implant prosthesis, the healing gear that is fastened to the oral cavity when the abutment is fastened to the oral cavity In some cases, the fastening may be difficult because the position and shape of the butts do not match. Thus, as the healing abutment and the abutment are different in shape, there is a possibility of misfit of the abutment, and if the shape difference is severe, there is a problem that a complicated procedure such as cutting the gum is required.

Republic of Korea Patent Publication No. 10-2009-0110136

The present invention was created to solve the above problems, more specifically, after removing the healing abutment healing prosthesis or custom abutment can be easily fastened without a separate procedure for the gums The aim is to provide.

Healing abutment of the present invention for achieving the above object is, as a healing abutment inserted into the fixture for implants having a natural tooth shape,

A fixture insertion unit inserted into the implant fixture;

Is disposed on the upper side of the fixture insert, has a cross-sectional shape corresponding to the cross-sectional shape of the tooth portion of the natural tooth to be replaced, and has a body portion including a gum generating unit for generating a gum shape corresponding to the tooth portion.

In the healing abutment,

The body portion may include an inner through hole penetrating the fixture inserting portion and the gum generating portion.

In the healing abutment,

It may include a screw member inserted into the inner through-hole screwed to the fixture for the implant.

In the healing abutment,

The cross-sectional shape of the gum generating unit may have a cross-sectional shape of any one of a triangular, elliptic, rectangular or rectangular cross section.

In the healing abutment,

The edge of the cross section of the gum generating unit may be rounded.

In the healing abutment,

The gum generating part may include a cross-sectional area maintaining part whose cross-sectional area is constantly maintained in the vertical direction.

In the healing abutment,

The gum generating part may include a cross-sectional area holding part that maintains a constant cross-sectional area toward the upper side, and the cross-sectional area holding part may be located above the inclined part.

In the healing abutment,

The inner through hole may be provided in the body part so that when the body part is cut in the horizontal direction, the body part is positioned at a position away from the center by a predetermined distance from the center of the body part.

A fixture insertion unit inserted into the implant fixture;

A body part disposed on the fixture insert and having a shape corresponding to the tooth neck cross-sectional formation of the natural tooth being replaced, the body part including a gum generating part generating a gum shape corresponding to the tooth neck part; And

It has a screw member extending downward from the body portion and screwed to the fixture for the implant.

The healing abutment according to the present invention has a shape similar to that of natural teeth, so that the final prosthesis or the customized abutment can be easily fastened to the fixture for implantation without a separate procedure.

1 is a view showing the cervical cross section of a general natural tooth.
Figure 2 shows a healing abutment according to the prior art.
3 is a view showing a state in which the final prosthesis is fastened after removal of the healing abutment of FIG.
Figure 4 is a perspective view showing the healing abutment of the present invention coupled to the fixture fixture.
5 is a VV cross-sectional view of FIG.
6 is a plan view of a healing abutment according to another embodiment of the present invention.
7 is a plan view of a healing abutment in accordance with another embodiment of the present invention.
8 is a perspective view of a healing abutment in accordance with another embodiment of the present invention.
9 is a photograph showing the shape of the oral cavity in which the healing abutment of FIG. 8 is to be treated.
10 is a perspective view of a healing abutment in accordance with another embodiment of the present invention.
11 is a photograph showing the shape of the oral cavity in which the healing abutment of FIG. 10 is to be treated.
12 to 14 are views of healing abutments in accordance with another embodiment of the present invention.

Hereinafter, a healing abutment according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings.

The healing abutment 10 of the present invention is inserted into the implant fixture 40 before the final prosthesis (not shown) and the abutment (not shown) so that the gum can be formed above the fixture 40. As it is, it comprises a body portion 20 and the screw member 30.

The body portion 20 is configured to include a fixture insertion portion 21 and the gum generating portion 22.

The fixture inserter 21 is a part inserted into the fixture fixture 40. Specifically, the fixture inserting portion 21 is a portion which is inserted into the fixture fixture 40 so that the body portion 20 can be maintained in the fixture 40. The fixture insertion unit 21 may have a cross-sectional shape that can be freely rotated when the inner insertion hole 24 is rotated as the center of rotation when inserted into the implant fixture 40, and specifically, may be a circular cross section. .

In this case, the cross-sectional shape that can be freely rotated means that the fixture inserting portion 21 can be freely rotated with respect to the fixture 40 before the screw member 30 is inserted and even after the screw member 30 is fastened. This does not mean that it can be freely rotated with respect to the fixture 40. As the fixture insertion portion 21 has a circular cross section which can be freely rotated as described above, when the gum generating portion 22 having the shape of a natural tooth has an irregular shape other than a circular shape, the gum generating portion (22) can be installed while freely changing the position in the fixture 40 so that the subject has the desired position and direction, and once the position and direction is determined to be able to fix the predetermined position by using the screw member (30) .

The gum generating unit 22 is disposed on the upper side of the fixture inserting unit 21 and has a cross-sectional shape corresponding to the tooth cross-sectional shape of the natural tooth to be replaced. The gum generating unit 22 is a part capable of generating a gum shape of the cervical portion of the subject. In this case, the gum generating unit 22 may be any shape as long as it is similar to the cross-sectional shape of the natural tooth. As shown in FIG. 4, the body part 20 may have a rectangular cross-sectional shape. However, the present invention is not limited thereto, and the body portion 201 may have a triangular shape as shown in FIG. 6, or the body portion 202 may have an elliptical shape as shown in FIG. 7. In addition, of course, the body portion may have a rectangular shape. At this time, the edge of each cross-sectional shape may be rounded.

At this time, the reason why the cross-sectional shape of the gum generating unit 22 has a triangular, ellipse, rectangular or rectangular cross-sectional shape is that the neck of the natural tooth shown in FIG. Part) due to the cross-sectional shape. For example, in the case of the incisors, the cross-sectional shape of the cervical region has a substantially triangular shape, in the case of the molar teeth, it has a substantially rectangular cross-sectional shape. The generation unit 22 reflects the cross-sectional shape of the cervical neck and has a triangular, elliptic or rectangular cross-sectional shape.

The gum generating unit 22 is configured of an inclined portion whose diameter (or cross-sectional area) increases from the fixture inserting portion 21 upward. At this time, the inclined portion may have a shape of an inverted square pyramid. In addition, the outer line of the side may be concave indented inward, but is not limited to this may be straight or convex convex outward, the specific formation depends on the shape of the gum to be produced.

On the other hand, the body portion 20 is formed with an internal through-hole 24 penetrating the lower surface of the fixture inserting portion 21 and the upper surface of the gum generating portion 22. The inner through hole 24 is a portion into which the screw member 30 is inserted, and the fixture is inserted in a state in which the diameter is narrowed by the step 241 as the downward diameter is maintained downward from the upper surface of the gum generating unit 22. It extends to the lower surface of the part 21. The head portion 31 of the screw member 30 is fixed to the body portion 20 by the step 241. On the other hand, the position of the step 241 corresponds to the length of the head portion 31 of the screw member (30). That is, the distance from the upper surface of the gum generating part 22 to the step 241 is almost the same as the length of the head part 31 of the screw member 30. As the step 241 is positioned in this way, the head 31 of the screw member 30 is inserted into the body 20 so that the top end of the head 31 of the screw member 30 is not. It can be placed in the same position as the top end of the gum generating unit (22).

When the uppermost end of the head portion 31 is placed at the same position as the uppermost end of the gum generating unit 22, foreign substances such as food debris are released after the healing abutment 10 is inserted into the oral cavity. It can be hygienic because it is not left inside.

The screw member 30 is inserted into the inner through hole 24 of the body portion 20 and screwed to the fixture fixture 40, and inserted into the fixture 40 to position the body portion 20 positioned therein. It is fixed to the fixture 40.

The screw member 30, the head portion 31 is inserted into the inner through hole 24 of the body portion 20, the bag extending from the head portion 31 and screwed to the implant fixture 40 It consists of a part (32). The head part 31 is caught by the step 241 in the inner through hole 24. The head part 31 may have a length such that the top end of the head part 31 may be positioned at the same position as the top end of the body part 20 when the screw jack implant fixture 40 is fastened.

The healing abutment 10 according to the present invention has the following effects.

First, the healing abutment 10 removes a cover screw (not shown) installed in the fixture 40 before fastening. Subsequently, the body portion 20 of the healing abutment 10 manufactured to have a shape corresponding to the natural tooth is installed in the fixture 40. At this time, the healing abutment 10 is installed so that the gum generating unit 22 has a cross-sectional shape corresponding to a natural tooth, not a circular cross section, so as to have a direction similar to that of the original natural tooth. That is, once the body portion 20 of the healing abutment 10 is inserted into the fixture 40, the body portion 20 is rotated to have a desired orientation. On the other hand, after the proper orientation is completed, the body portion 20 to be fixed to the fixture 40 by using a screw member (30).

Thereafter, after removing the healing abutment 10 after being generated on the gum suitable for the procedure after about 2-3 weeks, the abutment (not shown) is coupled to the fixture 40 and corresponds to the shape of the natural tooth. The implant procedure is completed by coupling the final prosthesis (not shown) to the abutment.

Since the healing abutment 10 has a shape similar to that of a natural tooth, the resulting gum has a shape suitable for inserting the final prosthesis. As it is optimized for the gums as described above, even after the final prosthesis is inserted, it is difficult to cause the gum to be cut without applying force to the gums. In other words, the healing abutment 10 has the advantage that the final prosthesis can be fastened without a separate procedure after removal.

In addition, even when the customized abutment is used, the healing abutment 10 has a shape approximately corresponding to that of the customized abutment, so that no pressure is applied to the gum.

The abutment according to one embodiment of the present invention may be modified as follows.

In the above-described embodiment, but illustrated that the inner through-hole 24 is located approximately in the center of the cross section of the body portion 20, but is not limited thereto. For example, because the shape of the alveolar bone of the subject varies, the implant fixture placed after the removal of the artificial tooth is not placed in the exact center between the adjacent teeth and the teeth, but rather close to one of the teeth or toward the lip as necessary. It may be placed. When the fixture 40 is implanted in such an abnormal position as described above, the inner through hole 24 needs to be unilaterally disposed from the center according to the situation, rather than being located at the center of the horizontal cross section of the body 20. .

That is, when the body portion is cut in the horizontal direction, an inner through hole may be provided in the body portion so that the body portion is positioned at a position away from the center by a predetermined distance from the center thereof.

In FIG. 8, the inner through hole 24 ′ is biased toward the left side of the body 203. The healing abutment having such a structure has a fixture placed toward the lips as shown in FIG. 9. May be used where possible. In addition, when the inner through hole 24 '' is biased toward the front of the body portion 204 as shown in FIG. 10, it is used when the fixture is biased and placed toward either tooth as shown in FIG. It becomes possible. In addition, the inner through hole may be customized according to the installation position of the fixture, thereby inducing a gum having an optimal shape to be generated.

In addition, in the above-described embodiment, the gum generating unit 22 has been described as consisting only of the inclined portion, but is not limited thereto. For example, as illustrated in FIGS. 12 to 14, the gum generating part 22 ′ may be formed of an inclined part 221 ′ and a cross-sectional area holding part 222 ′. In this case, the cross-sectional area holding unit 222 'is formed to be integrally formed on the upper side of the inclined portion 221' as a portion where the cross-sectional area is constantly maintained toward the upper side. In this case, the cross-sectional shape of the cross-sectional area holding unit 222 'may be maintained to be the same as the top cross-sectional area of the inclined portion 221'. That is, in FIG. 12, the rectangular cross section has been described. However, the present invention is not limited thereto, and various shapes are possible according to the shape of the inclined portion. On the other hand, other configurations, for example, the fixture insertion portion 221, the inner through-hole 24 '' ', the screw member 30' and the like are configured similarly to the above-described embodiment.

In the healing abutment of the present invention, a transition portion may be formed between the fixture insertion portion and the gum generating portion. Such a transition part is formed between a fixture inserting part having a circular cross section and a fixture inserting part having a rectangular, rectangular, or triangular shape, and configured to gradually change the cross-sectional shape from the circular cross section to the rectangular, rectangular, and triangular cross sections. That is, the cross-sectional area of the lower end of the transition portion may be circular and the upper surface may be rectangular, triangular, triangular, or the like.

On the other hand, in the above-described embodiment as a cross-sectional shape of the gum generating unit, a rectangular, triangular, rectangular or elliptical cross-section is illustrated, but is not limited to this, if the shape corresponding to the shape of the cervical unit is not limited thereto and may be modified into various shapes. Of course.

Although the present invention has been described in detail by way of examples, the present invention is not necessarily limited to these embodiments and modifications, and may be variously modified and implemented within the scope of the technical spirit of the present invention.

10 ... Healing abutment 20 ... Body
21 fixture fixture 22 gum generator
24 Inner through hole 241
30 Screw element 31 Head part
32.

Claims

Healing abutment with a natural tooth shape, inserted into an implant fixture
A fixture insertion unit inserted into the implant fixture;
Healing gear disposed on the fixture insertion portion, having a body portion including a gum generating portion having a cross-sectional shape corresponding to the tooth cross-sectional shape of the natural tooth to be replaced, to create a gum shape corresponding to the cervical portion Butt.

The method of claim 1,
Healing abutment, characterized in that the body portion includes an inner through hole penetrating the fixture insertion unit and the gum generating unit.

The method of claim 2,
Healing abutment, characterized in that it comprises a screw member inserted into the inner through-hole screwed to the fixture for the implant.

The method of claim 1,
Healing abutment, characterized in that the gum generating section has a cross-sectional shape of any one of a triangular, ellipse, rectangular or rectangular cross section.

5. The method of claim 4,
Healing abutment, characterized in that the edge of the gum generating section is rounded.

The method of claim 1,
The fixture insertion portion has a healing abutment, characterized in that having a cross-sectional shape that can be freely rotated in the center of rotation when the insertion hole is inserted into the implant fixture.

The method according to claim 6,
Healing abutment, characterized in that the cross-sectional shape of the fixture insertion portion is circular.

The method of claim 1,
The screw member is composed of a head portion inserted into the inner through hole, and a bag portion extending from the head portion and screwed to the fixture for implants,
Healing abutment, characterized in that the head portion has a length such that the top end of the head portion can be placed in the same position as the top end of the body portion when the screw member is fastened with the fixture for the implant.

The method of claim 1,
Healing abutment, characterized in that the gum generating portion increases in diameter toward the upper side and includes an inclined portion having a shape of any one of concave, convex or straight.

The method of claim 1,
Healing abutment, characterized in that the gum generating portion comprises a cross-sectional area holding portion is maintained in a constant cross-sectional area in the vertical direction.

10. The method of claim 9,
The gum generating portion includes a cross-sectional area holding portion that maintains a constant cross-sectional area toward the upper side, wherein the cross-sectional area holding portion is located on the inclined portion of the healing abutment.

The method of claim 2,
Healing abutment is characterized in that the inner through-hole is provided in the body portion to be placed at a position away from the center by a predetermined distance from the center when the body portion is cut in the horizontal direction.

Healing abutment with a natural tooth shape, inserted into an implant fixture
A fixture insertion unit inserted into the implant fixture;
A body part disposed on the fixture insert and having a shape corresponding to the tooth neck cross-sectional formation of the natural tooth being replaced, the body part including a gum generating part generating a gum shape corresponding to the tooth neck part; And
Healing abutment, characterized in that it has a screw member extending downward from the body portion and screwed to the implant fixture.