KR20150083260A - Dental implant - Google Patents

Abstract

The present invention relates to a dental implant associated with an artificial tooth, having a fixture forming an axial hole in an axial direction in an upper part and implanted into a jawbone (alveolar bone); and an abutment composed of a lower coupling axis part inserted into the axial hole of the fixture in a longitudinal direction to be elastically coupled to the fixture and an upper part installing part fixing a prosthesis in the upper part of the lower coupling axis part. The present invention comprises: a corresponding coupling unit forming a hook part on all the portions or a set portion in the circumferential direction of an inner side in the axial hole of the fixture; and an elastic coupling piece having a coupling unit, correspondingly coupled to the hook part of the corresponding coupling unit formed on the inner side in the axial hole of the fixture, on a hollow tube (pipe) shaped coupling axis part formed on one side of the lower coupling axis part of the abutment. The present invention is configured to bend the coupling part, arranged on the elastic coupling piece, inward a hollow tube (pipe) and, if the abutment arrives at the final position, make the coupling part return to an original position to be engaged with the corresponding coupling unit of the fixture and complementarily elastic-coupled to the coupling part by the elastic force of the elastic coupling piece formed on the hollow tube (pipe) shaped coupling axis part among the lower coupling axis part of the abutment if inserting the abutment into the axial hole of the fixture. The present invention can acquire an effect of easily realizing an implant surgery by adopting an elastic coupling method which facilitates attachment or detachment between the fixture and the abutment; can firmly be supported against external pressure applied in a lateral direction to the implant; and can acquire an effect of largely increasing lifespan of the coupling axis to elongate usage life expectancy of the implant.

Description

[0001] DENTAL IMPLANT [0002]

The present invention relates to a dental implant related to an artificial tooth, and more particularly, to a dental implant related to an artificial tooth, in which a more stable elastic coupling method is adopted between a fixture and an abutment, The present invention relates to an improved dental implant which can stably maintain a stable stiffness and maintain a stable connection between a fixture and a rim without breakage of the fastening shaft for a long period of time.

Generally, an implant implies a substitute of a lost natural tooth or a fixture is implanted in the jaw (alveolar bone) for a predetermined period to be fused with the jaw bone (alveolar bone), and then an abutment and an artificial tooth By restoring the prosthesis, it is a dental procedure that restores the original function of the tooth.

In the case of a commonly used implant, a fixture that is implanted in the alveolar bone is joined to the fixture and the abutment fastening portion by a screw coupling method.

However, in such a conventional screw-type coupling method, there is a serious problem such as screw loosening and screw fracture due to the continuous occlusal force since the fixture and the abutment are totally dependent on the screw connection.

In order to solve such a problem, Korean Patent Registration No. 10-0668368 entitled "Dental Implant" describes a fixture which forms a shaft hole therein and is placed in the jawbone (alveolar bone), and a shape memory alloy And an abutment which is elastically connected to the fixture through the fastening legs to chew food. The present invention also provides a dental implant.

In such a conventional dental implant, the fastening groove of the fixture and the fastening protrusion of the abutment are elastically coupled between the male and female in a complementary manner, thereby preventing the screw from being loosened and the screw being broken and the esthetics of the prosthesis It is possible to obtain an effect that can be ensured.

However, in the conventional dental implant, when the transverse external pressure is applied from the outside to the implant, since the lower fastening axis of the abutment is opened downward, the connecting portion of the fastening leg extending from the abutment is structurally To break or fracture or to release the fastening legs from the fixture.

In other words, since the fastening leg of the shape memory alloy can not be made thick for resilient coupling with the fixture and it is extended from the upper mounting portion on which the prosthesis is mounted, when the lateral external pressure is applied to the implant, Cracks are generated rapidly at the connecting portion of the fastening legs due to the occlusal force applied intensively to the starting point of the fastening legs. As a result, the fastening legs are separated from the fastening body and are separated from the fastening legs. There is a problem of shrinking.

SUMMARY OF THE INVENTION It is an object of the present invention to solve the above-mentioned problems of the prior art, and it is an object of the present invention to provide a dental implant having an improved dental implant structure that facilitates detachment / attachment between a fixture and an abutment, .

It is a further object of the present invention to provide a method and apparatus for securing a fastening shaft structure and strength of an abutment and an abutment force applied to an abutment, The present invention provides a dental implant that can be firmly supported with respect to a lateral external pressure applied to the implant and can greatly extend the durability of the fastening portion and thereby prolong the service life of the implant.

In order to accomplish the above object, the present invention provides a fixture comprising: a fixture formed on an upper portion of a shaft hole in an axial direction to be inserted into a jawbone (an alveolar bone); and a fixture inserted longitudinally into the shaft hole of the fixture, And an abutment member having a fastening shaft portion and an upper mounting portion to which a prosthesis is fixed on the upper fastening shaft, wherein the fastening portion has a fastening portion formed on the entire circumferential direction of the inner surface of the shaft hole of the fixture, And an elastic fastening piece having a fastening portion corresponding to the fastening portion of the corresponding fastening portion formed on the inner surface of the shaft hole of the fastening body on the fastening shaft portion in the form of a hollow pipe formed on one side of the abutment lower fastening shaft portion And when the abutment is pushed into the shaft hole of the fixture, the fastening portion provided on the elastic fastening piece by the elastic force of the elastic fastening portion formed on the fastening shaft portion of the hollow pipe (pipe) (Pipe) and is restored to the original position when the peripheral edge reaches the final position, and is engaged with the corresponding fastening portion of the fixing body to be complementarily resiliently fastened.

Preferably, the fastening portions provided on the fastening shafts formed on the fastening shafts in the hollow pipe-like shape among the corresponding fastening portions on the inner side of the fixed body axial hole and the abutment lower fastening shaft portions are complementary to each other, A fastening groove or a fastening step.

More preferably, the elastic fastening piece has a continuous cut portion formed around the fastening portion formed on the hollow pipe-shaped fastening shaft portion of the lower fastening shaft portion of the abutment portion, and only one side of the elastic fastening piece When the abutment is pushed into the shaft hole of the fixture by making the elastic part connected to the fastening shaft part, the fastening part of the elastic fastening piece is bent elastically inward into the hollow pipe due to the cut part, And is resiliently coupled to the engaging portion of the corresponding engaging portion formed on the inner surface of the fixture to be fastened.

", 또는 "

"의 형태를 가진다. Most preferably, the resilient tongue is "∩", "∪", "⊂", "⊃", "

", or "

".

" 또는 "

"형의 절개부를 형성하여, 중공의 관(파이프) 내측으로 휘어질 수 있도록 구성됨으로써, 상기 고정체의 축공에 지대주를 밀어 넣으면, 상기 "

" 또는 "

" 형 탄성 체결편의 체결부가 상기 "

"형 또는 "

"의 절개부에 의해 중공의 관(파이프) 내측으로 휘어졌다가 고정체의 대응 체결부와 지대주의 체결부가 결합되는 위치에 도달되면 다시 탄성 복원 되어 고정체 축공 내측면의 대응 체결부에 지대주 하부 체결축부의 체결부가 탄성 결합되어 체결이 이루어진다. According to the embodiment of the present invention, the corresponding fastening portion of the inner surface of the shaft hole of the fixture is formed adjacent to the inner bottom surface of the shaft hole of the fixture, and the elastic fastener is a hollow pipe of the lower fastening shaft portion, On the side of the lower edge of the fastening shaft part of the shape,

" or "

Shaped portion is formed so as to be bent inside the hollow pipe (pipe), so that when the abutment is pushed into the shaft hole of the fixture,

" or "

"The fastening part of the resiliently fastening piece"

"

(Pipe) by the cut-out portion of the fixed body, and when it reaches the position where the corresponding fastening portion of the fixed body and the fastening portion of the abutment are engaged, the elastic fastening is resiliently restored and the abutment lower portion So that the fastening portion of the fastening shaft portion is elastically engaged and fastened.

Preferably, among the lower fastening shaft portions, the elastic fastening pieces formed on the fastening shaft portion in the shape of a hollow pipe (pipe) are formed by one continuous cutting portion, and the center of the fastening portion formed by the fastening protrusion or the fastening groove in the elastic fastening piece (A) of two angled incisions of a straight line connecting the ends of one continuous incision is greater than 220 degrees.

More preferably, a corresponding fastening portion formed on the inner axial surface of the fixture is formed over the entire circumferential direction, and as a result, when the abutment is pushed into the fixture to be fastened, the corresponding fastening portion of the fixture and the fastener- Can be contracted regardless.

Most preferably, the corresponding fastening portions formed on the inner axial surface of the fixture are not formed all over the circumferential direction but are formed only at a predetermined position in the rotation direction. As a result, when the abutment is pushed into the fixture, And can be configured to be engaged only in the rotational position.

According to the embodiment of the present invention, the lower fastening shaft portion of the abutment is made of a superelastic material such as a shape memory alloy or a super elastic polymer.

Preferably, the lower fastening shaft portion made of a hollow pipe (pipe) can be filled with a non-metallic elastic material.

More preferably, an elastic fastening piece is formed on the fastening shaft portion of a hollow pipe shape, and at least one horizontal fastening hole is formed around the elastic fastening piece to improve the ability to absorb the bite force.

According to the present invention, a corresponding fastening portion is formed on the inner surface of the shaft hole of the fixture, and a circumferential portion of the fastening portion formed by a fastening means such as a fastening groove or a fastening projection located on a fastening shaft portion of a hollow pipe- When the abutment is pushed into the shaft hole of the fixture, the fastening portion of the abutment lower joint shaft portion is elastically bent to the inside of the hollow pipe (pipe), and the abutment is moved to the final position When it is reached, it is restored to the original position and elastically joined to the corresponding fastening portion on the inner side of the fixing pin shaft to be fastened. Therefore, an elastic bonding method that facilitates detachment and attachment between the fixture and the abutment is employed, and the effect of facilitating the implant procedure can be obtained.

According to the present invention, in the structure in which the fixture and the abutment are coupled with each other in the elastic coupling manner, the elastic fastener composed of the incision portion of only a small size, rather than the fastening leg type in which the lower fastening axis of the abutment is cut to the lower end, Is formed only in a part of the fastening shaft portion of the pipe shape, and the fastening axis itself can maintain the fastening shaft portion structure of the hollow pipe shape, so that the structural strength of the fastening axis is stably maintained. Therefore, the implant can be firmly supported with respect to the lateral external pressure exerted on the implant, and the durability of the fastening shaft can be greatly increased to obtain an excellent effect of extending the service life of the implant.

1 is an exploded perspective view showing a dental implant according to the present invention.
2A is an exploded assembly sectional view of the dental implant shown in Fig. 1 according to the present invention.
FIG. 2B is an assembled cross-sectional view of the dental implant shown in FIG. 1, forming a corresponding fastening portion in the circumferential direction on the inner axial surface of the fixture according to the present invention.
FIG. 3A is an exploded assembly sectional view of a dental implant according to the modified structure of the present invention, in which a corresponding fastening portion formed by a fastening groove is formed in the axial hole of the fixture throughout the circumferential direction. FIG.
FIG. 3B is an assembled cross-sectional view of the dental implant shown in FIG. 3A according to a modified structure of the present invention. FIG.
FIG. 4 is an exploded perspective view showing a dental implant having a corresponding fastening portion formed by a fastening groove only on a certain portion of the inner surface of the shaft hole of the fixture according to another modification of the present invention.
5A is an exploded assembly sectional view of the dental implant shown in FIG. 4 according to a modified structure of the present invention.
FIG. 5B is an assembled cross-sectional view of the dental implant shown in FIG. 4, according to a modified structure of the present invention.
FIG. 6A is a cross-sectional exploded assembly view of a dental implant according to another modified structure of the present invention. FIG.
FIG. 6B is an assembled cross-sectional view of the dental implant shown in FIG. 6A, according to another modification of the present invention.
FIGS. 7A and 7B are views showing a abutment having a horizontal through-hole formed on an upper / lower surface of an elastic fastening piece formed on a fastening shaft of a hollow pipe; FIG. 7C is a cross- And Fig.

Hereinafter, preferred embodiments of the present invention will be described in detail with reference to the drawings.

1, 2A, and 2B, the dental implant 100 according to the present invention includes a fixture 110 formed on an upper portion thereof with an axial hole 112 formed in the alveolar bone, A hollow shaft-shaped fastening shaft 130 is provided in the abutment lower fastening shaft part inserted longitudinally into the shaft hole 112 of the fixture 110, and on the upper fastening shaft part 130, 122) are fixed.

In such a structure, the present invention has a corresponding coupling portion 140 in which a concave engagement groove 142 is formed in the entire circumferential direction or at a predetermined portion in a side surface of the shaft hole 112 of the fixture 110.

The engagement groove 142 of the corresponding coupling portion 140 preferably has a ring-like structure formed concavely in the circumferential direction on the inner surface of the shaft hole 112 of the fixture 110, (Not shown). If the circumferential direction is formed in a ring shape, a separate abutment rotation prevention form for the possibility of rotation after the fixture and the abutment is combined should be complementarily provided to the lower abutment shaft portion and the fixed portion in the abutment of the abutment, If it is formed only in a part of the direction, it may not be necessary to provide a separate form for preventing abutment rotation.

A fastening protrusion 152 corresponding to a fastening shaft portion of a hollow pipe of the lower fastening shaft portion 130 of the abutment 120 and corresponding to the fastening groove 142 of the fastening portion 140, The elastic fastening piece 150 may be formed on the fastening shaft portion of the hollow pipe in the lower fastening shaft portion 130 of the abutment 120. The elastic fastening piece 150 may be formed, Quot; -shaped cut-out portion 156a is formed around the fastening portion 152 to have an elastic force.

2A and 2B, when the abutment 120 is pushed into the shaft hole 112 of the fixture 110, the dental implant 100 according to the present invention has the elastic fastening piece 150 is bent to the inside of the hollow pipe by the elastic force of the "∩" -shaped cutout 156a, and when the peripheral edge reaches the final position, it is restored to its original position And is elastically engaged with the engaging groove 142 of the fixture to be fastened.

In this structure, only a small-sized incised portion 156a is formed in the fastening shaft 130 of the abutment 120, and the fastening shaft 130 itself is fastened in a hollow tube- The shaft structure can be maintained, and the structural strength of the shaft 130 can be stably maintained.

Accordingly, the conventional lower end of the fastening shaft can be firmly supported through the fastening shaft structure in the shape of a hollow pipe (pipe) instead of the fastening leg cut to the end with respect to the lateral external pressure applied to the implant 100, The durability of the fastening shaft 130 can be greatly increased and an advantageous effect of extending the service life of the implant 100 can be obtained.

Although not shown, if the engaging groove of the corresponding engaging portion formed on the inner surface of the shaft hole of the fixed body is formed only in a part other than the entire circumferential direction, the abutment is pushed into the shaft hole and then rotated, .

As shown in FIGS. 3A and 3B, the elastic fastener 150 may be a hollow pipe-shaped fastening shaft portion of the lower fastening shaft portion 130 of the abutment 120, Quot; U "-shaped cut-out portion 156b around the fastening portion 152 to obtain an elastic force.

The engaging grooves 142 of the corresponding fastening portions 140 corresponding to the abutment fastening portions 152 having such a structure are formed in a ring-like structure formed concavely in the inner surface of the shaft hole 112 of the fastening body 110 Lt; / RTI >

Therefore, even in such an elastic coupling structure, when the abutment 120 is pushed into the shaft hole 112 of the fixture 110, the fastening portion 152 of the resilient fastener 150 is inserted into the "∪" When the peripheral edge reaches the final position, it is restored to its original position and is resiliently engaged with the engaging groove 142 of the concave ring-shaped structure to be fastened. , The structural stability of the fastening shaft 130 can be maintained.

Also, in this structure, the engaging groove of the corresponding engaging portion can be formed in the entire circumferential direction on the inner side of the shaft hole of the fixed body, or formed only in the circumferential direction only, so that the abutment is completely pushed into the fixed body shaft, It is possible to prevent rotation of the belt after fastening.

In this structure, the fastening portion and the corresponding fastening portion of the elastic fastening piece may be formed in the longitudinal direction (not shown) of the shaft hole of the fixture, not in the circumferential direction. In this case, after the abutment is completely pushed into the shaft hole of the fixture, In this structure, rotation of the abutment in the fixture can be prevented by only the fastening portion without providing any other form.

4, 5A, and 5B, the dental implant 100 according to the present invention has a deformed structure. The dental implant 100 according to the present invention includes a shaft hole 112 formed at an upper portion thereof, And a hollow shaft 130 inserted into the shaft hole 112 of the fixture 110 in the longitudinal direction and having a hollow shaft portion 130 formed on the lower shaft shaft portion 130, 122) are fixed.

A corresponding fastening part 140 formed with a recessed engagement groove 144 is formed on the inner surface of the shaft hole 112 of the fixture 110 and a hollow pipe 140 of the lower fastening shaft part 130 of the abutment And a coupling part 150 protruding from a fastening shaft 154 of the fastening shaft 140. The fastening part 154 is coupled to the fastening shaft 144 of the fastening part 140. [

In such a structure, the engagement groove 144 of the corresponding coupling part 140 may be formed in the circumferential direction of the shaft hole 112 of the fixing body 110, or may be recessed at any point in the circumferential direction.

The elastic fastening piece 150 is formed of a material such as "⊂" or "⊃" around the fastening portion formed by the fastening protrusion 152 on the hollow pipe-shaped fastening shaft 130 of the abutment 120 Shaped (not shown) cut-out portion 156c so as to obtain an elastic force.

5A and 5B, when the abutment 120 is fully pushed into the shaft hole 112 of the fixture 110 and is rotated in the circumferential direction, as shown in FIGS. 5A and 5B, The clamping portion formed of the fastening protrusion 154 of the fastening protrusion 150 is bent to the inside of the hollow pipe by the cut portion 156c and restored to the original position at a specific position, So that the fastening is achieved.

In this structure, only a small-sized "⊂" -like cutout 156c is formed in the fastening shaft 130 of the abutment 120, and the fastening shaft 130 itself is fastened in the shape of a hollow pipe The shaft structure can be maintained, so that the structural strength of the fastening shaft 130 is stably maintained. Accordingly, the lower part of the conventional fastening shaft can be firmly supported through the cylindrical structure rather than the fastening legs cut to the end with respect to the lateral external pressure applied to the implant 100. As a result, the durability of the fastening shaft 130 can be increased And the service life of the implant 100 can be prolonged.

In addition, in the structure in which the corresponding fastening portion formed on the inner surface of the fixing pin shaft hole is formed in a predetermined portion rather than being formed annularly in the entire circumferential direction, after the fastener 110 and the abutment 120 are engaged, It is possible to effectively prevent circumferential rotation of the abutment 120 within the abutment portion 120, so that more stable engagement can be achieved.

If a separate circumferential rotation prevention device is provided Fixed body Inside the shaft  Response Fastening The latching groove  It is obvious that the shape is formed throughout the entire circumferential direction.

" 또는 "

"(미도시)형 의 절개 부(156d)을 형성하여 탄성력을 얻는 구조로 이루어질 수 있다.6A and 6B, the engaging grooves 144 of the corresponding fastening portions 140 are recessed adjacent to the inner bottom surface of the shaft hole 112 of the fixing body 110 , is formed in the circumference of the elastic engaging piece 150 of the abutment hollow tube (pipe), the retaining portion 154 at one side of the bottom fastening edge of the shape of the shaft portion 120. "

" or "

(Not shown) to form an incision 156d to obtain an elastic force.

"형의 절개부(156d)에 의해서 탄성적으로 중공의 관(파이프) 내측으로 휘어졌다가 일정 위치에서 탄성 체결편의 체결돌기가 원위치로 복원 되면서 오목한 걸림홈(144)에 결합되어 체결이 이루어진다.In this structure, when the abutment 120 is completely pushed into the shaft hole 112 of the fixture 110 and is rotated in the circumferential direction, the fastening protrusion 154 of the resilient fastener 150 is inserted into the "

Quot; -shaped portion 156d to elastically return to the inside of the hollow pipe (pipe), and at a certain position, the fastening protrusions of the elastic fastening pieces are restored to their original positions and are coupled to the concave latching grooves 144 to be fastened.

"형의 절개부(156d)만이 형성되고, 체결축(130) 자체는 중공의 관(파이프) 형상의 구조를 유지할 수 있어서, 체결축(130)의 구조적인 강도가 안정적으로 유지되고, 고정체(110)와 지대주(120)의 결합 후에, 상기 고정체(110)내에서 지대주(120)의 원주방향 회전을 효과적으로 방지할 수 있어서, 더욱 안정적인 결합이 이루어질 수 있다.Therefore, a hollow pipe-shaped fastening shaft portion 130 of the abutment 120 is provided with only a small-sized "

"Only the cut-out portion (156d) of the type is formed, the fastening shaft 130 itself to be able to maintain the structure of the hollow tube (pipe) shape, the structural strength of the fastening shaft 130 is stably held, the fixture It is possible to effectively prevent the circumferential rotation of the abutment 120 in the fixture 110 after the engagement of the abutment 110 and the abutment 120, so that more stable engagement can be achieved.

Likewise, the engagement grooves of the corresponding fastening portions on the inner surface of the fixed shaft shafts may be formed throughout the entire circumferential direction.

"형 또는 "

"형 과 같은 다양한 형태의 절개부를 통하여 탄성 체결편을 형성하여 탄성력을 얻음으로써, 고정체(110)의 축공(112)에 지대주(120)를 밀어 넣으면, 지대주(120)의 탄성 체결편상의 체결돌기로 이루어진 체결부가 상기 절개부로 인하여 탄성적으로 중공의 관(파이프) 내측으로 휘어졌다가 특정 위치에서 탄성 체결편상의 체결돌기로 이루어진 체결부가 원위치로 복원 되면서 고정체(110) 축공 내측면의 걸림홈에 탄성적으로 결합되어 체결이 이루어진다. As described above, according to the present invention, a corresponding fastening part having various types of fastening grooves is formed on the inner surface of the shaft hole of the fastening body 110, and on the fastening shaft part of the hollow tube shape of the abutment 120, Shaped, "∪" type, "⊃" type, "⊂" type, " ""type, and the like, which surround the fastening portion,

"

When the abutment 120 is pushed into the shaft hole 112 of the fixture 110 by forming elastic engaging pieces through various cutouts such as a die to obtain an elastic force, The fastening part composed of the projections is bent to the inside of the hollow tube (pipe) due to the incision, and the fastening part made of the fastening protrusion on the elastic fastening piece at the specific position is restored to the original position, And is tightly bonded to the groove to be fastened.

Therefore, the elastic implantation method that facilitates detachment and attachment between the fixture 110 and the abutment 120 can be employed to facilitate the operation of the implant 100.

"형, 또는 "

"의 절개부만이 형성되고 중공의 관(파이프) 형상이 유지되기 때문에, 지대주의 하부 체결축이 하부 끝단까지 절개되어 있는 체결 레그 타입보다 체결축(130)의 구조적인 강도가 안정적으로 유지된다. 따라서 임플란트(100)에 가해지는 측방향 외압에 대하여서 견고하게 지지될 수 있고, 체결축(130)의 내구성을 크게 증대시켜서 임플란트(100)의 사용 수명을 연장시킬 수 있는 우수한 효과를 얻을 수 있다.According to the present invention, in the structure in which the fixture 110 and the abutment 120 are coupled with each other in the elastic coupling manner, the hollow pipe (pipe) -shaped shaft portion 130 of the abutment 120 has only a small For example, "∩" type, "∪" type, "⊂" type, "

"Brother, or"

Since the shape of the hollow pipe (pipe) is maintained, the structural strength of the fastening shaft 130 is stably maintained more than that of the fastening leg type in which the lower fastening axis of the abutment is cut to the lower end The implant 100 can be firmly supported with respect to the lateral external pressure applied to the implant 100 and the durability of the fastening shaft 130 can be greatly increased to obtain an excellent effect of extending the service life of the implant 100 .

The material used for the lower fastening shaft portion of the present invention is preferably a super-elastic material such as a shape memory alloy or a high elastic polymer, and the hollow pipe portion is preferably formed of a super drill using discharge, It is preferable that the fastening piece is formed of a super drill and a wire cutting machine using electric discharge.

As shown in Fig. 7 (c), the elastic fastening piece formed on the fastening shaft portion of the hollow pipe (pipe) has a single fastening portion having a center of the fastening portion formed of the fastening protrusion or fastening groove provided in the elastic fastening piece, It is preferable that the angle (A °) of the cut side of the angle formed by the lines connecting the both ends of the cut portion exceeds a minimum of 220 °.

On the other hand, as shown in FIGS. 7A and 7B, an accessory incision 160 for absorbing an occlusal force may be additionally formed on a lower portion of the elastic fastening member having a fastening portion.

Although the present invention has been described in detail with reference to specific embodiments thereof with reference to the accompanying drawings, the present invention is not limited to such specific structures. It will be understood by those skilled in the art that various changes in form and details may be made therein without departing from the spirit and scope of the invention as defined in the following claims. For example, the shape of the incision may not be limited to the structure described above, but may be other polygonal shapes and may include an accessory incision in addition to a continuous incision forming a resilient fastener, Pipe) -shaped fastening shaft portion (FIG. 7), and the shape and size of the fastening protrusion and the fastening groove may be different. However, it is intended that the present invention cover the modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.

"형의 절개 홈 100: Dental implant 110: Fixture
112: Bayonet 120: abutment
122: prosthesis 140: fastening groove
142, 144: engagement groove 144a: first groove
144b: second groove 150: fastening piece
152, 154: fastening protrusion 154a: first protrusion
154b: second projection 156a: "∩" type incision groove
156b: incision groove of "∪" type 156c: incision groove of "⊂" type
156d: "

"

Claims (11)

A fixture for forming an axial hole in the upper portion and being inserted into the jawbone (alveolar bone), a lower fastening shaft portion inserted longitudinally into the shaft hole of the fixture so as to be elastically engaged, and a prosthesis fixed to the upper fastening shaft And an upper abutment portion formed on the upper abutment portion,
A corresponding fastening portion having a fastening portion formed on the entire circumferential direction or a predetermined portion of the inner surface of the shaft hole of the fixture; And
And an elastic fastening piece having a fastening portion corresponding to a fastening portion of a corresponding fastening portion formed on an inner surface of the shaft hole of the fastening body on a fastening shaft portion of a hollow pipe shape formed at one side of the lower fastening shaft portion of the abutment ,
When the abutment is pushed into the shaft hole of the fixture, the fastening part provided on the elastic fastening piece by the elastic force of the elastic fastening part formed on the fastening shaft part in the shape of a hollow pipe in the lower fastening shaft part of the abutment, And when the abutment has reached its final position, it is restored to its original position and is engaged with the corresponding fastening portion of the fixture so as to be complementarily resiliently fastened. [3] The apparatus according to claim 1, wherein the fastening portions provided on the fastening shafts formed on the fastening shafts of the pipe-like shape among the corresponding fastening portions on the side surfaces of the fixed shaft body and the abutment lower fastening shafts are complementarily engaged with each other, A protrusion, a fastening groove, or a fastening step. [2] The apparatus according to claim 1, wherein the elastic fastening piece has one continuous cut portion formed on a fastening shaft portion of a pipe-shaped fastening shaft portion of a lower fastening shaft portion of the abutment, When the abutment piece is pushed into the shaft hole of the fixture body by making the elastic part connected to the lower fastening shaft part, the fastening part of the elastic fastener piece is bent elastically inward into the hollow pipe due to the cut part, And is elastically coupled to the latching portion of the corresponding fastening portion formed on the inner surface of the fixture while being restored to its original position. 4. The method according to claim 3, wherein the elastic fastening elements are "∩ ',' ∪ ',' ⊂ ','

", or "

"≪ / RTI > 2. The apparatus according to claim 1, wherein a corresponding fastening portion on the inner axial surface of the fixture is formed adjacent to the inner bottom surface of the shaft hole of the fixture, and the elastic fastener is a hollow pipe- On the side of the lower edge of the fastening shaft part,

" or "

Shaped portion is formed so as to be bent inside the hollow pipe (pipe), so that when the abutment is pushed into the shaft hole of the fixture,

" or "

"The fastening part of the resiliently fastening piece"

"

(Pipe) by the cut-out portion of the fixed body, and when it reaches the position where the corresponding fastening portion of the fixed body and the fastening portion of the abutment are engaged, the elastic fastening is resiliently restored and the abutment lower portion And the fastening portion of the fastening shaft portion is resiliently engaged and fastened. [3] The apparatus according to claim 1, wherein the elastic fastening piece formed on the fastening shaft portion of the pipe-shaped fastening shaft portion of the lower fastening shaft portion is formed by one continuous cutout portion, and the fastening protrusion or fastening groove Wherein an angle (A [deg.]) Between two angular incisions of a straight line connecting the ends of one continuous incision at the center of the region is greater than 220 [deg.]. 2. The apparatus according to claim 1, wherein a corresponding fastening portion formed on the inner axial surface of the fixture is formed over the entire circumferential direction, and as a result, when the abutment is pushed into the fixture to be fastened, the corresponding fastening portion of the fixture and the fastener- Wherein the fastening means is fastened regardless of the size of the dental implant. 2. The method according to claim 1, wherein the corresponding fastening portion formed on the inner axial surface of the fixture is not formed over the entire circumferential direction but is formed only at a predetermined position in the rotation direction. As a result, when the abutment is pushed into the fixture, And is fastened only at a predetermined rotational position. The dental implant according to claim 1, wherein the lower fastening shaft portion of the abutment is made of a super elastic material such as a shape memory alloy or a super elastic polymer. The dental implant according to claim 1, wherein the lower fastening shaft portion made of a hollow pipe is filled with a non-metallic elastic material. 2. The method according to claim 1, characterized in that an elastic fastening piece is formed on a fastening shaft portion in the shape of a hollow pipe and at least one horizontal through hole is formed around the elastic fastening piece to improve the ability to absorb an occlusal force Dental implants.

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