KR101103545B1 - Abutment for holding barrier membrane - Google Patents

Abstract

The shielding membrane fixing abutment 100 of the present invention is screwed to the fixture and the lower body 110 for installing the shield in a position away from the fixture to form a space for implanting new bone around the fixture and alveolar bone And an upper body 150 which is screwed to the lower body 110 and fixes the shielding film mounted on the lower body 110. The lower body 110 is composed of an inverted cone-shaped body portion 111, a long cylindrical lower water coupling portion 112 and a short cylindrical upper water coupling portion 113 formed to be integrally connected, and a cone The shaped body portion 111 has an investment cone surface 111a buried in the fixture and an exposure cone surface 111b exposed out of the fixture.

Description

Abutment for shielding film fixing {ABUTMENT FOR HOLDING BARRIER MEMBRANE}

The present invention relates to an abutment, and more particularly, to an abutment for fixing a shielding membrane capable of sufficiently securing a bone graft space required for an implant according to the degree of alveolar bone defect.

Implants replace partially or totally missing teeth, and are divided into fixtures corresponding to the roots placed in the alveolar bone, abutments that are exposed or unexposed to the gums above the fixtures and artificial teeth that are coupled onto the abutments. Successful implants will depend on how firmly the fixture is placed in the alveolar bone, for example, if the alveolar bone is partially or totally defective due to various causes, such as periodontitis, the implant may not be properly implanted, leading to failure of the implant procedure. Cause.

To this end, a technique for implanting bone into a position for placing a fixture using a shielding film has been researched and developed. A representative example thereof is disclosed in "COVER SCREW FOR DENTAL IMPLANT" of US Patent No. 6,171,106, the representative configuration of which is shown in Figs.

As shown in Figure 1, the conventional cover screw (2) is composed of a main body (3) and a fixed screw (4).

The main body 3 is a male screw 3a which is screwed to the threaded hole 1a formed in the fixture 1, a mounting surface 3b on which the shielding film 5 is mounted, and a female screw to which the fixing screw 4 is screwed. It has (3c).

The fixing screw 4 has a head 4a for holding the shielding film 5, a connection part 4b to which a fastening tool such as a wrench is connected, and a male screw 4c screwed to the female screw 3c of the main body 3. Have

As shown in FIG. 2, the male screw 3a of the main body 3 is screwed into the threaded hole 1a of the fixture 1 placed in the mandible, and an upper part of the mandible on the mounting surface 3b. The shielding film 5 is mounted so as to cover. The male screw 4c of the fixing screw 4 is screwed to the female screw 3c of the main body 3, and the shielding film 5 interposed therebetween is fixed.

In the conventional cover screw 2 having the above-described configuration, since only a very narrow space can be formed between the mandible and the shielding membrane 5, when the degree of defects of the bone is small, implantation can be performed without difficulty, but in contrast to the bone In the case of a large deficiency, sufficient bone graft cannot be secured and sufficient bone graft is difficult. This makes it difficult for the fixture to be firmly placed in the bone and prevents successful implantation.

In addition, in the conventional cover screw 2, since the fixing screw 4 is closely adhered directly to the shielding film 5, the operator holds the shielding film 5 in a narrow space by using a tool in a small space, and then uses a fixed screw (using another tool). When turning 4) to the end, the shielding film 5 was rotated together, making it difficult to fix the shielding film 5 to the desired precise position.

US Patent No. 6,171,106

The present invention has been made to solve the above-mentioned problems of the prior art, the problem to be solved of the present invention is to place the shielding film in the desired amount according to the degree of bone defects by placing a distance away from the top of the fixture placed in the alveolar bone by a desired distance. It is to provide an abutment for fixing a shield to secure a bone graft space capable of sufficiently implanting bone.

Another problem to be solved by the present invention is to form a desired interval corresponding to the thickness of the shielding film at the position where the shielding film is interposed, the shielding film can be fixed in the desired precise location in the narrow working space without the movement of the shielding film in accordance with the desired tool It is to provide a fixed abutment.

In order to achieve the above object of the present invention, the present invention is detachably coupled to the fixture placed in the missing alveolar bone and a shielding film at a position away from the fixture so as to form a space for implanting a new bone around the fixture and the alveolar bone. It provides a shielding membrane fixing abutment comprising a lower body for installation, and an upper body for detachably coupled to the lower body and fixed to the shielding film mounted on the lower body.

The abutment of the present invention is characterized in that the lower body is screwed with the fixture, the upper body is screwed with the lower body, the lower body is mounted on the upper body, the gap corresponding to the thickness of the shielding film is formed To be another feature.

The abutment according to the first embodiment of the present invention includes an inverted cone-shaped body portion, a long cylindrical lower water coupling portion, and a short cylindrical upper water coupling portion in which the lower body is integrally formed. The conical body portion is characterized by having a buried conical surface buried in the fixture and an exposed cone surface exposed out of the fixture. The height of the exposed cone surface is 0.3 mm to 5.0 mm, preferably 0.5 mm to 3.0 mm, more preferably 1.0 mm to 2.0 mm.

The cone-shaped body portion has an annular inner mounting surface on which the upper body is mounted and an outer mounting surface of the annular mounting shielding film is formed, and the outer mounting surface is formed to be stepped lower than the inner mounting surface. The difference height is equal to or larger than the thickness of the shielding film, and the outer diameter of the inner mounting surface or the inner diameter of the outer mounting surface is different from the diameter of the fastening hole formed in the shielding film.

The upper body has a body portion close to the dome shape, the height of the body portion is characterized in that 0.5mm ~ 6.0mm, the height of the body portion is 0.5mm ~ 2.0mm when the upper body is a cover screw, 2.0mm when the healing abutment It is characterized by being ˜6.0 mm.

In the abutment according to the second embodiment of the present invention, the inverted cone-shaped body portion, the long cylindrical-shaped lower water coupling portion, and the short cylindrical upper water coupling portion, which are cut in the middle portion where the lower body is integrally formed. Characterized in that it comprises a conical body portion is characterized in that the whole is exposed to the upper side of the fixture. The height of the body portion is 0.3 mm to 5.0 mm, preferably 0.5 mm to 3.0 mm, and more preferably 1.0 mm to 2.0 mm.

When the upper body is completely coupled to the lower body, a height equal to the thickness of the shielding film is formed between the mounting surface formed on the lower body and the shielding film contact surface formed on the upper body.

The abutment according to the third embodiment of the present invention includes a two-stage inverted cone-shaped body portion, a long cylindrical lower water coupling portion, and a short cylindrical upper water coupling portion in which the lower body is integrally formed. The conical body portion is characterized in that it has an investment cone surface buried in the fixture and an exposed cone surface exposed out of the fixture. The height of the exposed cone surface is 0.3 mm to 5.0 mm, preferably 0.5 mm to 3.0 mm, more preferably 1.0 mm to 2.0 mm.

The abutment according to the fourth embodiment of the present invention is characterized in that the lower body includes an inverted cone-shaped body portion in which an intermediate portion is cut off, and the body portion is entirely exposed upward of the fixture. The height of the body portion is 0.3 mm to 5.0 mm, preferably 0.5 mm to 3.0 mm, and more preferably 1.0 mm to 2.0 mm.

The upper body has a body portion close to the dome shape, the height of the body portion is characterized in that 0.5mm ~ 6.0mm, the height of the body portion is 0.5mm ~ 2.0mm when the upper body is a cover screw, 2.0mm when the healing abutment Another characteristic is that it is -6.0 mm.

When the upper body is coupled to the lower body is another feature that the height of the shielding film is formed between the mounting surface formed on the lower body and the shielding film contact surface formed on the upper body.

The abutment according to the fifth embodiment of the present invention includes a two-stage inverted cone-shaped body portion in which the lower body is cut in the middle portion, and the body portion is exposed to the buried conical surface buried in the fixture and out of the fixture. It is characterized by having an exposed cone surface. The height of the exposed cone surface is 0.3 mm to 5.0 mm, preferably 0.5 mm to 3.0 mm, more preferably 1.0 mm to 2.0 mm.

In addition, the present invention includes a lower portion having a lower male coupling part detachably coupled to a fixture placed in the missing alveolar bone, and an upper portion formed integrally with the lower portion, around the lower portion and the upper portion of the periphery of the fixture and the alveolar bone. The shielding film fixing abutment is provided, characterized in that the shielding film insertion groove is formed in which the shielding film is inserted in a position away from the fixture to form a space in which a new bone is implanted. The overall height including the lower part and the upper part is characterized by being 0.3 mm to 5.0 mm, preferably 0.5 mm to 3.0 mm, and more preferably 1.0 mm to 2.0 mm.

When the lower coupling part penetrates the fastening hole formed in the shielding film and reaches the bottom surface of the lower part, the surrounding area of the fastening hole is deformed, and when the lower water coupling part is inserted into the shielding insertion hole, the lower diameter of the bottom surface is restored to its original state by self-resilience. Is characterized in that it is formed larger than the inner diameter of the shielding film insertion groove, the height of the upper portion is 0.5mm to 2.0mm when the upper portion is a cover screw, 2.0mm to 6.0mm when the healing abutment is another feature.

Since the shielding membrane fixing abutment of the present invention is positioned away from the top of the fixture by a desired distance, it is possible to properly secure a bone graft space capable of sufficiently implanting a desired amount of bone in accordance with the degree of bone defect.

If a sufficient amount of bone is generated above the fixture implanted in the alveolar bone, the newly created interdental alveolar bone is newly created as much as desired prior to the alveolar bone defect and the intervertebral papilla envelops the interdental bone. You'll get excellent aesthetics that can be seen on your teeth.

In addition, since the amount of alveolar bone is sufficient to form the interdental alveolar bone, it can withstand the load concentrated on the fixture according to the bite force that can be applied after the implant procedure. This prevents the absorption or destruction that can occur in thin alveolar bone, resulting in a successful implant procedure and can be very easy to maintain and maintain.

In addition, since the desired spacing is formed at the location where the shielding film is interposed, the shielding film can be moved even if the abutment is tightly tightened using another tool without using the tool in a narrow work space. The shield can be fixed at the exact position desired.

1 is a schematic exploded perspective view of a cover screw for a conventional dental implant;
FIG. 2 is a schematic cross-sectional view showing a state in which a shielding film is fixed to a fixture by a cover screw of FIG. 1; FIG.
3 is a schematic exploded perspective view of the abutment for fixing the shielding film according to the first embodiment of the present invention;
4 is a schematic exploded cross-sectional view of the abutment of FIG. 3;
5 is a schematic cross-sectional view showing an example in which a shielding film is installed on the alveolar bone by the abutment of FIG. 4;
6 is a schematic exploded cross-sectional view of an abutment for fixing a shielding film according to a second embodiment of the present invention;
7 is a schematic exploded cross-sectional view of the abutment for fixing the shielding film according to a third embodiment of the present invention;
8 is a schematic exploded cross-sectional view of an abutment for fixing a shielding film according to a fourth embodiment of the present invention;
9 is a schematic exploded cross-sectional view of the abutment for fixing a shielding film according to a fifth embodiment of the present invention;
10 is a schematic exploded cross-sectional view of the abutment for fixing a shielding film according to a sixth embodiment of the present invention; And
FIG. 11 is a schematic cross-sectional view illustrating a state in which a shielding film is installed on the alveolar bone by the abutment of FIG. 10.

Hereinafter, with reference to the accompanying drawings will be described in detail for the abutment for fixing the shielding film according to embodiments of the present invention.

First embodiment

First, the abutment for fixing the shielding film according to the first embodiment of the present invention will be described with reference to FIGS. 3 and 4. 3 is a schematic exploded perspective view of the abutment for fixing the shielding film according to the first embodiment of the present invention, Figure 4 is a schematic exploded cross-sectional view of the abutment of FIG.

3 and 4, the shielding membrane fixing abutment 100 according to the present embodiment includes a lower body 110 and an upper body 150 that are detachably coupled to each other. The abutment 100 of the present embodiment is preferably applied to, for example, an internal type fixture.

The lower body 110 is to install the shielding film at a position separated by a desired distance from the fixture placed in the alveolar bone, and is detachably screwed to the fixture. The lower body 110 includes an inverted cone-shaped body portion 111, a long cylindrical lower water coupling portion 112, and a short cylindrical upper water coupling portion 113 formed to be integrally connected to each other.

The body portion 111 is half of the buried cone surface (111a) close to the lower number coupling portion 112 virtually divided by the dotted line in Figure 4 is completely inside the fixture, while the remaining close to the upper number coupling portion 113 Half of the exposure cone surface 111b is completely exposed out of the fixture. The height h1 of the exposure cone surface 111b is about 0.3 mm to 5.0 mm, preferably about 0.5 mm to 3.0 mm, more preferably about 1.0 mm to 2.0 mm.

In addition, the body portion 111 has an annular inner mounting surface 114 on which the upper body 150 is mounted, and an annular outer mounting surface 115 on which the shielding film is mounted. The outer mounting surface 115 is formed to be slightly lower than the inner mounting surface 114 to have a step, and the stepped height h2 may be equal to or slightly larger than the thickness of the shielding film. The outer diameter of the inner mounting surface 114 or the inner diameter d1 of the outer mounting surface 115 may be equal to the diameter of the fastening hole formed in the shielding film.

The lower male coupling part 112 is formed to stand straight on the lower end of the buried conical surface 111a, and has an outer circumferential surface 116 formed with a thread corresponding to a thread formed in the fastening hole of the fixture so as to be screwed somewhat strongly with the fixture. . The lower male coupling part 112 may have a diameter that is equal to or slightly larger than a fastening hole, and may have a length that is equal to or slightly smaller than a fastening hole for a somewhat strong and smooth screwing.

The upper male coupling part 113 is formed to stand upright on the upper end of the exposed cone surface 111b, and has an outer circumferential surface 117 formed with a screw thread that is screwed with the upper body 150. In the upper end, the tool insertion groove 118 into which the tool used to fasten the lower body 110 to the fixture is inserted is formed at the center of the shaft, and the top surface is formed to be flat. Tool insertion groove 118 may have a variety of polygonal shapes, such as square, hexagon or octagon for firm fastening with the tool.

The upper body 150 is for fixing the shielding film partially mounted on the lower body 110, it is detachably screwed to the lower body (110). The upper body 150 includes a body portion 151 and a lower arm coupling portion 152 close to the dome shape. In the present embodiment, as an example of the application of the upper body 150, a healing abutment of a non-submerged form in which the upper body 150 is exposed to the outside of the gum is illustrated.

Body portion 151 has a smooth gum contact surface 153 is formed in the circumference to be in contact with the gum wrapped by the gum, is mounted on the inner mounting surface 114 formed on the body portion 111 of the lower body 110 The shielding film contacting surface 155 is mounted on the annular mounting surface 154 and the outer mounting surface 115 and faces the shielding film in direct contact or at a distance from each other. The upper end of the body 151 is formed with a tool insertion groove 156 is inserted in the center of the shaft is inserted into the tool used when fastening the upper body 150 to the lower body 110, the top surface is rounded Is formed. Tool insertion groove 156 may have a variety of polygonal shapes, such as square, hexagonal or octagonal for firm fastening with the tool.

The height h3 of the body 151 may be about 0.5 mm to 6.0 mm, for example, a healing abutment form of a non-submerged shape in which the upper body 150 is exposed to the outside of the gum as in the present embodiment. About 2.0 mm to 6.0 mm is preferred and about 3.0 mm is more preferred, while the upper body 150 is a submerged cover screw that is completely embedded in the gum. In this case, about 0.5 mm-about 2.0 mm are preferable.

The lower female coupling part 152 has a size and shape corresponding to that of the upper male coupling part 113 of the lower body 110, and the bottom surface 157 has an upper surface 119 of the upper male coupling part 113. It can be nearly touching or at some distance.

5 illustrates a state in which a shielding film is installed on the alveolar bone by the abutment of the present embodiment.

As shown in FIG. 5, the lower body 110 of the abutment 100 is screwed to the fixture 20 implanted in the alveolar bone 10, and the outer mounting surface 115 of the lower body 110 is screwed. The upper body 150 is screwed on the lower body 110 in a state in which the shielding film 30 is mounted on the lower body 110.

The buried cone surface 111a formed in the body portion 111 of the lower body 110 is completely embedded in the fixture 20, while the exposed cone surface 111b is completely exposed upward of the fixture 20. As such, the exposure cone surface 111b is exposed upward of the fixture 20, so that the outer mounting surface 115 on which the shielding film 30 of the body portion 111 is mounted is also exposed on the upper portion of the fixture 20. And exposed at a distance of 111 b). When the shielding film 30 is separated from the fixture 20 at a distance, an empty space is formed between the shielding film 30 and the fixture 20 around the lower side of the shielding film 30 and the outer periphery of the fixture 20. 40 is formed. The empty space 40 is implanted with a new bone to replace the missing alveolar bone.

The mounting surface 154 formed on the body portion 111 of the upper body 150 is in close contact with the inner mounting surface 114 of the lower body 110, the thickness of the shielding film 30 with respect to the inner mounting surface 114. Thanks to the outer mounting surface 115 formed stepped downward, the shielding film contact surface 155 is in contact with the shielding film 30 by slightly pressing the upper surface of the shielding film 30. Upper body 150 is a gum contact surface 153 formed around the circumference is completely surrounded by the gum 50, the top surface is exposed to the outside.

According to this embodiment, the distance between the outer mounting surface 115 on which the shielding film 30 is mounted and the fixture 20 can be adjusted by adjusting the height of the exposure cone surface 111b, so that a new bone can be implanted. It is possible to form as much space as desired.

In addition, by forming the inner mounting surface 114 and the outer mounting surface 115 stepped down by the thickness of the shielding film 30, the shielding film contact surface 155 is in contact only by pressing the upper surface of the shielding film 30, the tool Even when the upper body 150 is firmly tightened using the shielding film 30, the shielding film 30 may be maintained as it is mounted on the lower body 110 without rotating together with the upper body 150.

Second embodiment

Next, the abutment for fixing the shielding film according to the second embodiment of the present invention will be described with reference to FIG. 6. 6 is a schematic exploded cross-sectional view of the abutment for fixing a shielding film according to a second embodiment of the present invention.

As shown in FIG. 6, the shielding membrane fixing abutment 200 according to the present embodiment includes a lower body 210 and an upper body 250 that are detachably coupled to each other. The abutment 200 of the present embodiment is preferably applied to, for example, an external type fixture.

The lower body 210 is for installing the shielding film at a position separated by a desired distance from the fixture placed in the alveolar bone, and detachably screwed to the fixture. The lower body 210 has an inverted cone-shaped body portion 211 cut in the middle portion formed to be integrally formed, a long cylindrical lower water coupling portion 212 and a short cylindrical upper water coupling portion 213. Include.

Body portion 211 is the entire cone surface 212 is to be completely exposed to the top of the fixture. The height h4 of the body portion 211 or the conical surface 212 is about 0.3 mm to 5.0 mm, preferably about 0.5 mm to 3.0 mm, more preferably about 1.0 mm to 2.0 mm.

In addition, the body portion 211 has an annular mounting surface 214 having an upper body 250 mounted thereon at an upper end thereof, and an annular insertion groove 215 having an upper protrusion portion of a fixture completely inserted therein. The coupling part 212 is formed to surround. The inner diameter d2 of the mounting surface 214 is preferably equal to the diameter of the fastening hole formed in the shielding film.

The lower male coupling part 212 is formed to stand straight on the lower end of the body part 211, and the outer circumferential surface 216 in which the threads corresponding to the threads formed in the fastening holes of the fixtures are partially formed so as to be screwed somewhat strongly with the fixtures. Has The lower male coupling part 212 may have a diameter equal to or slightly larger than a fastening hole, and may have a length equal to or slightly smaller than a fastening hole for a somewhat strong and smooth screwing.

The upper male coupling portion 213 is formed to stand upright on the upper end of the body portion 211 and has an outer circumferential surface 217 formed with a screw thread that is screwed with the upper body 250. The upper end portion is formed with a tool insertion groove 218 is inserted in the center of the shaft is inserted into the tool used when fastening the lower body 210 to the fixture, the top surface is formed flat. The tool insertion groove 218 preferably has various polygonal shapes, such as square, hexagonal or octagonal, for firm fastening with the tool.

The upper body 250 is for fixing a shielding film partially mounted on the lower body 210, and is detachably screwed to the lower body 210. Since the upper body 250 has the same configuration except for the upper body 150 and the lower arm coupling part 252 of the first embodiment described above, only other components will be described in order to avoid duplication of description.

In the first embodiment, the bottom surface 157 formed on the lower female coupling portion 152 of the upper body 150 is almost in contact with the top surface 119 formed on the upper male coupling portion 113 of the lower body 110. In the present embodiment, the flat bottom surface 257 formed on the lower arm coupling portion 252 of the upper body 250 has the upper water coupling portion 213 of the lower body 210. It is formed in close contact with the top surface 219 formed in the. In addition, the height of the upper water coupling portion 213 of the lower body 210 is formed somewhat larger than the depth of the lower arm coupling portion 252 of the upper body 250, preferably larger than the thickness of the shielding film.

By this structure, when the upper body 250 is coupled to the lower body 210, the thickness of the shielding film between the shielding film contact surface 255 of the upper body 250 and the mounting surface 214 of the lower body 210 Height h5 is formed. As a result, the shielding film contact surface 255 is brought into contact with the shielding film by lightly pressing the upper surface of the shielding film.

Third embodiment

Next, the abutment for fixing the shielding film according to the third embodiment of the present invention will be described with reference to FIG. 7. 7 is a schematic exploded cross-sectional view of the abutment for fixing a shielding film according to a third embodiment of the present invention.

As shown in FIG. 7, the shielding membrane fixing abutment 300 according to the present embodiment includes a lower body 310 and an upper body 350 that are detachably coupled to each other. The abutment 300 of the present embodiment is preferably applied to an internal fixture, for example.

The lower body 310 is for installing the shielding film at a position separated by a desired distance from the fixture placed in the alveolar bone, and detachably screwed to the fixture. The lower body 310 is composed of a two-stage inverted conical body portion 311 formed to be integrally formed, a long cylindrical lower water coupling portion 312 and a short cylindrical upper water coupling portion 313. do.

In the body portion 311, half of the buried cone surface 311a, which is close to the lower water coupling portion 312 virtually divided by the dotted line in FIG. 7, is buried in the fixture, while the close water coupling portion 313 is close to the upper water coupling portion 313. FIG. The other half of the exposure cone surface 311b is exposed out of the fixture. The height h6 of the exposure cone surface 311b is about 0.3 mm to 5.0 mm, preferably about 0.5 mm to 3.0 mm, and more preferably about 1.0 mm to 2.0 mm.

In addition, the body portion 311 has an annular mounting surface 314 on which the upper body 350 is mounted, and an inner diameter d3 of the mounting surface 314 is formed to have the same diameter as the fastening hole formed in the shielding film. It is desirable to be.

The lower male coupling part 312 is formed to stand straight on the lower end of the body part 311 and has an outer circumferential surface 316 formed with a thread corresponding to a thread formed in a fastening hole of the fixture so as to be screwed somewhat strongly with the fixture. . The lower male coupling part 312 may have a diameter equal to or slightly larger than a fastening hole, and may have a length smaller than or equal to a fastening hole for a somewhat strong and smooth screwing.

Since the configuration and connection relationship between the upper male coupling part 313 and the upper body 350 are exactly the same as the configuration and connection relation between the upper male coupling part 213 and the upper body 250 of the second embodiment described above, In order to avoid duplication, description thereof is omitted.

Fourth embodiment

Next, the abutment for fixing the shielding film according to the fourth embodiment of the present invention will be described with reference to FIG. 8. 8 is a schematic exploded cross-sectional view of the abutment for fixing a shielding film according to a fourth embodiment of the present invention.

As shown in FIG. 8, the shielding membrane fixing abutment 400 according to the present embodiment includes a lower body 410 and an upper body 450 that are detachably coupled to each other. The abutment 400 of the present embodiment is preferably applied to, for example, an external type fixture.

The lower body 410 is for installing the shielding film at a position separated by a desired distance from the fixture placed in the alveolar bone, and detachably screwed to the fixture. The lower body 410 includes an inverted cone-shaped body portion 411 cut in the middle portion.

Body portion 411 is the entire surface of the conical surface 412 is completely exposed to the top of the fixture. The height h7 of the body portion 411 or the conical surface 412 is about 0.3 mm to 5.0 mm, preferably about 0.5 mm to 3.0 mm, more preferably about 1.0 mm to 2.0 mm.

The body portion 411 has an annular mounting surface 414 having an upper body 450 mounted thereon, and an inner diameter d3 of the mounting surface 414 is formed to have the same diameter as the fastening hole formed in the shielding film. desirable.

In the center of the upper end of the body portion 411 is formed a circular through hole 416 through which the lower water coupling portion 452 of the upper body 450 is fastened to the fixture, and in the center of the lower portion, the upper protrusion of the fixture A fully inserted circular insertion hole 415 is formed to completely connect with the circular through hole 416. The diameter of the insertion hole 415 is somewhat larger than the diameter of the through hole 416.

The upper body 450 is for fixing a shielding film partially mounted on the lower body 410, and is detachably penetrated to the lower body 410. The upper body 450 includes a dome-shaped body portion 451 and the lower water coupling portion 452. In the present embodiment, as an example of the application of the upper body 450, a cover screw of a submerged shape in which the upper body 450 is completely buried into the gum is illustrated.

The body portion 451 has a smooth gum contact surface 453 formed around the gum in contact with the gum and wrapped around the gum, and a shielding film mounted on the mounting surface 414 formed on the body portion 411 of the lower body 410. A shielding film contact surface 455 is formed at the bottom thereof to be in direct contact with or faced at a slight distance. In the upper end of the body portion 451, a tool insertion groove 456 into which a tool used to fasten the upper body 450 to the fixture is inserted is formed at the center of the shaft, and the top surface is formed roundly. The tool insertion groove 456 may have various polygonal shapes such as square, hexagon, or octagon for firmly fastening with the tool.

The height h8 of the body portion 451 may be about 0.5 mm to 6.0 mm, for example, a cover screw having a submerged shape in which the upper body 450 is completely buried into the gum as in the present embodiment. In the case of the case of about 0.5 mm to 2.0 mm is preferable, while the healing abutment of the non-submerged form in which the upper body 450 is exposed to the outside of the gum is preferably about 2.0 mm to 6.0 mm, about 3.0 Mm is more preferred.

The lower male coupling part 452 is formed to stand straight on the lower end of the body part 451, and the outer circumferential surface 457 in which the threads corresponding to the threads formed in the fastening holes of the fixtures are partially formed so as to be screwed somewhat strongly with the fixtures. Has The lower male coupling part 452 may have a diameter equal to or slightly larger than that of the fastening hole, and the lower male coupling part 452 may have a length longer than the length of the fastening hole by the thickness of the shielding film. have.

By this structure, when the lower body 410 and the upper body 450 is completely coupled, the shielding film mounting surface 414 formed on the body portion 411 of the lower body 410 and the body portion of the upper body 450 The height h9 of the thickness of the shielding film is formed between the shielding film contact surfaces 455 formed at 451. As a result, the shielding film contact surface 455 is brought into contact with the shielding film by lightly pressing the upper surface of the shielding film.

Fifth Embodiment

Next, the abutment for fixing the shielding film according to the fifth embodiment of the present invention will be described with reference to FIG. 9. 9 is a schematic exploded cross-sectional view of the abutment for fixing a shielding film according to a fifth embodiment of the present invention.

As shown in FIG. 9, the shielding membrane fixing abutment 500 according to the present embodiment includes a lower body 510 and an upper body 550 that are detachably coupled to each other. The abutment 500 of the present embodiment is preferably applied to an internal fixture, for example.

The lower body 510 is for installing the shielding film at a position separated by a desired distance from the fixture placed in the alveolar bone, and is detachably inserted and coupled to the fixture. The lower body 510 includes a two-stage inverted cone-shaped body portion 511 cut in the middle portion.

The body portion 511 is a curved lower half of the buried cone surface 511a, which is buried in the fixture, and an upper half of the exposed cone surface 511b, which is exposed out of the fixture, as virtually divided by a dotted line in FIG. 9. Has The height h10 of the exposure cone surface 511b is about 0.3 mm to 5.0 mm, preferably about 0.5 mm to 3.0 mm, more preferably about 1.0 mm to 2.0 mm.

The body 511 has an annular mounting surface 514 on which the upper body 550 is mounted, and an inner diameter d4 of the mounting surface 514 may be formed to have the same diameter as the fastening hole formed in the shielding film. have. Body portion 511 is formed in the center of the upper end of the circular through hole 516 through which the lower coupling portion 552 of the upper body 550 is fastened to the fixture. A lower surface coupling portion 552 of the upper body 551 is screwed to the upper portion of the through hole 516 and the screw surface is formed to penetrate, and the other surface is not formed in the screw surface.

The positional relationship between the configuration of the upper body 550 and the lower body 510 is different only from the positions of the threads formed on the lower male coupling part 552 of the upper body 550, and the upper body 450 of the fourth embodiment described above. ) Is the same as the positional relationship between the lower body 410 and the description thereof will be omitted in order to avoid duplication of description.

Sixth embodiment

Next, the abutment for fixing the shielding film according to the sixth embodiment of the present invention will be described with reference to FIG. 10. 10 is a schematic exploded cross-sectional view of the abutment for fixing a shielding film according to a sixth embodiment of the present invention.

As shown in FIG. 10, the shielding abutment abutment 600 according to the present exemplary embodiment includes a lower portion 601 and an upper portion 602 which are integrally connected to the dome shape as a whole. The abutment 600 of the present embodiment is preferably applied to, for example, an fixture of an external form.

In the drawing, the lower part virtually divided by the dotted line is the lower part 601 and the upper part is the upper part 602. A shielding film insertion groove 603 is formed between the lower portion 601 and the upper portion 602 so that the shielding film is somewhat freely inserted along the entire circumference. The overall height h11 + h12 + h13 of the abutment 600, including the lower portion 601 and the upper portion 602, is about 0.3 mm to 5.0 mm, preferably about 0.5 mm to 3.0 mm, more preferably about 1.0 mm-2.0 mm. In addition, the height h12 of the shielding film insertion groove 603 is preferably equal to or slightly larger than the thickness of the shielding film to be inserted, and the inner diameter d4 is preferably equal to or slightly smaller than the outer diameter of the fastening hole formed in the shielding film.

The lower part 601 is formed so that the lower male coupling part 604 screwed to the fixture in the center of the lower end is straight, and the upper projection part of the fixture is completely inserted to surround the lower male coupling part 604. Grooves 605 are formed.

The lower male coupling part 604 has an outer circumferential surface 606 formed with a thread corresponding to a thread formed in the fastening hole of the fixture so as to be screwed slightly stronger with the fixture. The lower male coupling part 604 may have a diameter equal to or slightly larger than a fastening hole, and may have a length equal to or slightly smaller than a fastening hole for a somewhat strong and smooth screwing.

The lower portion 601 has a diameter D of the bottom surface somewhat larger than the inner diameter d4 of the shielding insertion hole 603. By this structure, when the lower coupling part 604 penetrates the fastening hole formed in the shielding film and the shielding film starts to reach the bottom surface of the lower part 601, the surrounding area of the fastening hole is somewhat deformed, and then the shielding film insertion groove 603 is formed. When it is inserted into, it is restored to its original state by the self restoring force of the shielding film.

The upper part 602 has a smooth gum contact surface 607 formed in contact with the gum and wrapped by the gum, and a tool insert into which the tool used to fasten the abutment 600 to the fixture is inserted into the upper part. The groove 608 is formed at the center of the shaft, and the top surface is rounded. Tool insertion groove 608 preferably has a variety of polygonal shapes, such as square, hexagonal or octagonal for firm engagement with the tool.

The height h13 of the upper portion 602 may be about 0.5 mm to 6.0 mm. For example, the upper portion 602 is a healing abutment in the form of a non-submerged surface in which the upper portion 602 is exposed out of the gum. In this case, about 2.0 mm to 6.0 mm is preferable, and about 3.0 mm is more preferable, while in the case of the submerged cover screw in which the upper part 602 is completely embedded in the gum, about 0.5 mm to 2.0 mm desirable.

11 shows an example in which a shielding film is installed on the alveolar bone by the abutment of the present embodiment. FIG. 11 is a schematic cross-sectional view illustrating a state in which a shielding film is installed on the alveolar bone by the abutment of FIG. 10.

As shown in FIG. 11, the lower male coupling part 604 of the abutment 600 is screwed to the fixture 20 implanted in the alveolar bone 10, and the lower part 601 and the upper part 602. The shielding film 30 is inserted into the shielding film insertion groove 603 formed in between. The upper protrusion 21 of the fixture 20 is completely inserted into the annular insertion groove 605 formed in the lower male coupling part 604.

The abutment 600 is entirely exposed upward of the fixture 20, so that the shielding film insertion groove 603 is spaced apart from the upper end of the fixture 20 at a predetermined interval. Due to this, the shielding film 30 is positioned apart from the top of the fixture 20, and between the shielding film 30 and the fixture 20 between the lower periphery of the shielding film 30 and the outer periphery of the fixture 20. The three-dimensional empty space 40 is formed. The empty space 40 is implanted with a new bone to replace the missing alveolar bone.

The upper portion 602 has a gum contact surface 607 formed at its periphery and completely surrounded by the gum 50, and the upper surface is exposed to the outside.

According to this embodiment, by adjusting the height of the lower portion 601 of the abutment 600, the distance between the shielding film insertion groove 603 and the fixture 20 into which the shielding film 30 is inserted can be adjusted. You will be able to create as much space as you want to implant your bones.

The abutment 600 of this embodiment is composed of one body and can be used in a different working environment from the abutments of the first to fifth embodiments described above.

As mentioned above, although the shielding film fixing abutment of this invention was demonstrated with reference to the preferable embodiment, it is clear for those skilled in the art that various changes, correction, or a deformation | transformation are possible within the range which does not deviate from the idea of this invention.

100 ~ 600: Abutment for fixing the shielding film
110 to 510: lower body 150 to 550: upper body
601: lower part 602: upper part
111: conical body portion 112: lower water coupling portion
113: upper water coupling portion 111a: investment cone surface
111b: Exposure cone surface 114: Inside mounting surface of the annulus
115: outer mounting surface of the annular shape 151: body portion close to the dome shape
152: lower arm coupling portion 153: gum contact surface
154: annular mounting surface 155: shielding film contact surface

Claims (29)

A lower body for detachably coupled to a fixture implanted in the missing alveolar bone and installing a shield at a position away from the fixture such that a space for implanting new bone around the fixture and the alveolar bone is formed; And
An upper body detachably coupled to the lower body to fix the shielding film;
The abutment is characterized in that the lower body includes an inverted cone-shaped body portion, a cylindrical lower water coupling portion and a cylindrical upper water coupling portion to be integrally formed.
The abutment according to claim 1, wherein the lower body is screwed with the fixture and the upper body is screwed with the lower body.
The abutment according to claim 1, wherein a gap corresponding to the thickness of the shielding film is formed at a portion where the lower body and the upper body are coupled to each other.
delete The abutment according to claim 1, wherein the conical body portion has an investment cone surface buried in the fixture and an exposure cone surface exposed out of the fixture.
The abutment according to claim 5, wherein the exposed cone surface has a height of 1.0 mm to 2.0 mm.
According to claim 1, wherein the cone-shaped body portion is formed on the top of the annular inner mounting surface and the annular outer mounting surface on which the shielding film is mounted, the outer mounting surface is formed than the inner mounting surface Abutment characterized in that formed low step.
The abutment according to claim 7, wherein the stepped height between the outer mounting surface and the inner mounting surface is equal to or larger than the thickness of the shielding film.
The abutment according to claim 7, wherein the outer diameter of the inner mounting surface or the inner diameter of the outer mounting surface is equal to the diameter of the fastening hole formed in the shielding film.
The abutment according to claim 1, wherein the upper body has a dome-shaped body part, and the height of the body part is 0.5 mm to 6.0 mm.
The method of claim 10, wherein the height of the body portion is 0.5mm to 2.0mm when the upper body is a cover screw (cover screw), when the healing abutment (healing abutment) characterized in that the fish Butt.
A lower body for detachably coupled to a fixture implanted in the missing alveolar bone and installing a shield at a position away from the fixture such that a space for implanting new bone around the fixture and the alveolar bone is formed; And
An upper body detachably coupled to the lower body to fix the shielding film;
The lower body is abutment, characterized in that it comprises an inverted cone-shaped body portion cut in the middle portion to be formed integrally connected, a cylindrical lower water coupling portion and a cylindrical water coupling portion.
13. The abutment according to claim 12, wherein the conical body portion is entirely exposed above the fixture.
The abutment according to claim 13, wherein the body portion has a height of 1.0 mm to 2.0 mm.
The abutment according to claim 12, wherein a height equal to the thickness of the shielding film is formed between the mounting surface formed on the lower body and the shielding film contact surface formed on the upper body when the upper body is coupled to the lower body. Comment.
A lower body for detachably coupled to a fixture implanted in the missing alveolar bone and installing a shield at a position away from the fixture such that a space for implanting new bone around the fixture and the alveolar bone is formed; And
An upper body detachably coupled to the lower body to fix the shielding film;
The lower body is abutment characterized in that it comprises a two-stage inverted cone-shaped body portion, a cylindrical lower water coupling portion and a cylindrical upper water coupling portion formed to be integrally connected.
The abutment according to claim 16, wherein the conical body portion has an investment cone surface embedded in the fixture and an exposure cone surface exposed out of the fixture.
18. The abutment according to claim 17, wherein the height of the exposed cone surface is 1.0 mm to 2.0 mm.
A lower body for detachably coupled to a fixture implanted in the missing alveolar bone and installing a shield at a position away from the fixture such that a space for implanting new bone around the fixture and the alveolar bone is formed; And
An upper body detachably coupled to the lower body to fix the shielding film;
The lower body is composed of an inverted cone-shaped body portion cut in the middle portion, the abutment, characterized in that the entire body portion is exposed to the upper side of the fixture.
The abutment according to claim 19, wherein the height of the body portion is 1.0 mm to 2.0 mm.
The abutment according to claim 19, wherein the upper body has a dome-shaped body part, and the height of the body part is 0.5 mm to 6.0 mm.
The abutment according to claim 21, wherein the body portion has a height of 0.5 mm to 2.0 mm when the upper body is a cover screw, and 2.0 mm to 6.0 mm when a healing abutment.
20. The abutment according to claim 19, wherein a height equal to the thickness of the shielding film is formed between the mounting surface formed on the lower body and the shielding film contact surface formed on the upper body when the upper body is coupled to the lower body. Comment.
A lower body for detachably coupled to a fixture implanted in the missing alveolar bone and installing a shield at a position away from the fixture such that a space for implanting new bone around the fixture and the alveolar bone is formed; And
An upper body detachably coupled to the lower body to fix the shielding film;
The lower body includes a two-stage inverted cone-shaped body portion cut in the middle portion, wherein the body portion has an investment cone surface buried in the fixture and an exposed cone surface exposed out of the fixture. Butt.
The abutment according to claim 24, wherein the height of the exposed cone surface is 1.0 mm to 2.0 mm.

A lower part having a lower male coupling part detachably coupled to a fixture placed in a missing alveolar bone; And
An upper portion integrally formed on the lower portion,
A shielding membrane fixing groove is formed at a circumference of the lower part and the upper part, whereby a shielding film insertion groove is formed in which a shielding film is inserted at a position away from the fixture so as to form a space for implanting new bone around the fixture and the alveolar bone. Butt.
The abutment according to claim 26, wherein the overall height including the lower part and the upper part is 1.0 mm to 2.0 mm.
27. The method of claim 26, wherein when the lower water coupling portion penetrates through the fastening hole formed in the shielding film and reaches the bottom surface of the lower portion, the shielding film is deformed and then inserted into the shielding film insertion groove. Abutment, characterized in that the diameter of the bottom surface of the lower portion to be restored to its original state by the self-resilience is formed larger than the inner diameter of the shielding film insertion groove.
The abutment according to claim 28, wherein the height of the upper portion is 0.5 mm to 2.0 mm when the upper portion is a cover screw, and 2.0 mm to 6.0 mm when the healing abutment is used.

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