KR102177719B1 - Hybrid healing abutment and method for fabricating the same - Google Patents

Abstract

Disclosed are a hybrid healing abutment fastened by a screw to a fixture fixed to an alveolar bone during a dental implant procedure, and a method of manufacturing the same. The disclosed hybrid healing abutment is formed of a metal material, is formed of a base that is fitted to a fixture, and a polymer resin material, and is integrally bonded to the base and includes abutment protrusions protruding away from the fixture. The base and the abutment protrusion are aligned in a straight line so that the screw penetrates, and a continuous screw hole is formed.

Description

Hybrid healing abutment and method for fabricating the same}

The present invention relates to a healing abutment used in a dental implant procedure, and more particularly, to a hybrid healing abutment formed integrally with heterogeneous materials and a method of manufacturing the same.

In dental treatment, the implant procedure is an artificial tooth implantation, and a fixture made of titanium or titanium alloy, which is not rejected by the human body, is removed to replace the lost root (root). It is a procedure to restore the function of the tooth by implanting it in the left alveolar bone and then fixing the artificial tooth. In the case of a general prosthesis or denture, the surrounding teeth and bones are damaged over time, but the implant does not damage the surrounding dental tissue, and it has the advantage that it can be used semi-permanently because it has the same function or shape as a natural tooth and does not cause caries.

Briefly explaining the conventional implant procedure, first, through a drilling and tapping process in the alveolar bone, a groove corresponding to the dimensions of the fixture is formed, and the fixture is implanted into the alveolar bone. When the fixture is fixed to the alveolar bone by bone fusion, a healing abutment is fixed to the fixture to rebuild the gum aesthetically. When the gums are aesthetically rebuilt, the healing abutment is removed from the fixture, and an impression coping is fastened to the fixture and an impression is made by covering it, and based on the obtained impression, a permanent prosthesis, i.e., a fixation abutment (abutment) and crown (crown) are fabricated. Meanwhile, while the permanent prosthesis is being manufactured, a healing abutment is re-fastened to the fixture. When the crown is manufactured, the healing abutment is removed from the fixture again, a fixing abutment is fixedly fastened to the fixture, and the crown is fixedly coupled to the fixing abutment.

In the conventional dental implant procedure described above, the processes of fastening and removing the healing abutment to the fixture are repeated, so that damage and deformation of the gum and alveolar bone may occur in the process, and there is a problem that the duration of the dental implant procedure is delayed. On the other hand, in a state in which the healing abutment is fixedly fastened to the fixture, food may get stuck in the healing abutment and its surroundings, and because it is not aesthetically pleasing, a protective cap is temporarily applied to the healing abutment. However, there is a problem that the protective cap is not easily separated and separated from the healing abutment because it is not joined by a bonding means such as an adhesive.

Korean Patent Publication No. 10-1546531

The present invention, as a healing abutment used in a dental implant procedure, provides a hybrid healing abutment in which heterogeneous materials are integrally bonded and a method for manufacturing the same.

The present invention is fastened by a screw to a fixture fixed to the alveolar bone during a dental implant procedure, is formed of a metal material, and is formed of a base that is fitted to the fixture, and a polymer resin material. The hybrid healing abutment is integrally bonded to the base and has an abutment protrusion protruding in a direction away from the fixture, and the base and the abutment protrusion are aligned in a straight line so that the screw passes through, and a continuous screw hole is formed. Provides.

The base may be formed of one of pure titanium (Ti) and titanium alloys.

The abutment projection may be formed of a polymer resin material of PEEK (polyetheretherketone) and PEKK (polyetherketoneketone).

The light reflectance of the abutment protrusion surface is less than that of the base surface, and an image obtained by scanning the inside of the oral cavity while the hybrid healing abutment is fastened to the fixture includes an error due to light reflection ( error) may not exist.

A protective cap made of a polymer resin material, which covers the screw hole of the abutment protrusion, is detachably covered with the abutment protrusion, and the protective cap may be elastically attached to the abutment protrusion.

A tooth-shaped crown formed of a polymer resin material is detachably covered on the protective cap, and the crown may be in elastic contact with the protective cap.

In order to obtain an impression inside the oral cavity while the abutment protrusion is fastened to the fixture, an impression cap may be mounted on the abutment protrusion.

In addition, the present invention includes the step of forming the base to form the base, and inserting and seating the base in a cavity corresponding to the shape of the hybrid healing abutment in a mold, and injection-injecting a molten polymer resin into the cavity and curing Thus, it provides a hybrid healing abutment manufacturing method comprising an injection injection step of forming the abutment protrusion.

The hybrid healing abutment manufacturing method may further include an adhesive applying step of applying a dental adhesive to a portion of the outer surface of the base that is joined to the abutment protrusion prior to the injection injection step.

In the hybrid healing abutment of the present invention, the abutment protrusion exposed outside the gum is formed of a polymer resin material having a low light reflectance, so that a three-dimensional scanning of the interior of the oral cavity without applying a gloss removal solution or covering a scan cap to the hybrid healing abutment ), you can get a clear image without errors such as bleeding. In addition, even in the case of taking an impression instead of 3D scanning, instead of removing the hybrid healing abutment from the fixture and mounting the impression coping on the fixture, an impression cap is mounted on the abutment projection to obtain an impression. can do. That is, when the hybrid healing abutment of the present invention is fastened to the fixture, the hybrid healing abutment is not removed from the fixture and remains fastened until the permanent prosthesis, that is, the crown and the fixing abutment supporting it, are fastened to the fixture. Injury and deformation of the over-alveolar bone and pain during the procedure are suppressed, and the duration of dental implant procedure is shortened.

In addition, since the abutment projections are formed of a polymer resin material having greater elasticity than metal, even if a protective cap formed of a polymer resin material having the same or similar elastic properties as the material of the abutment projections is covered on the abutment projections, the protective cap is It is in elastic contact with the abutment projection and is not easily separated from the hybrid healing abutment. In addition, even if a crown formed of a polymer resin material having the same or similar elastic properties as the material of the protective cap is covered on the protective cap without interposing a dental adhesive, the crown is in elastic contact with the protective cap. Hybrid healing abutments and are not easily separated from the protective cap. Therefore, discomfort and embarrassment in daily life during the dental implant treatment period are prevented.

In addition, even if the hybrid healing abutment of the present invention is not covered with a protective cap formed of a polymer resin material, the abutment projections of a color and texture similar to teeth are not exposed through the open mouth, and are not easily noticeable by others. Thus, the psychological burden is alleviated when the patient faces other people during the dental implant treatment period.

1 is a perspective view of a hybrid healing abutment according to an embodiment of the present invention.
FIG. 2 is a cross-sectional view illustrating a state in which the hybrid healing abutment of FIG. 1 is fixedly fastened to the fixture, and is a view showing the hybrid healing abutment of FIG. 1 cut along II-II.
3 is a cross-sectional view showing a state in which a protective cap and a crown are mounted on the hybrid healing abutment of FIG. 2.
FIG. 4 is a cross-sectional view illustrating a state in which an impression cap is mounted on the hybrid healing abutment of FIG. 2.
5 is a view for explaining the injection injection step of the steps of the hybrid healing abutment manufacturing method according to an embodiment of the present invention.

Hereinafter, a hybrid healing abutment and a method of manufacturing the same according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings. Terms used in the present specification are terms used to properly express preferred embodiments of the present invention, which may vary according to the intention of a user or operator or customs in the field to which the present invention belongs. Accordingly, definitions of these terms should be made based on the contents throughout the present specification.

1 is a perspective view of a hybrid healing abutment according to an embodiment of the present invention, and FIG. 2 is a cross-sectional view showing a state in which the hybrid healing abutment of FIG. 1 is fixedly fastened to the fixture, and the hybrid healing abutment of FIG. 1 is shown in II-II. It is a diagram cut along the lines. 1 and 2 together, the hybrid healing abutment 20 according to the embodiment of the present invention is a screw 10 to a fixture 5 fixed to the alveolar bone during a dental implant procedure. It is a member that is fastened and fixed by ).

Incidentally, the fixture 5 has a male screw pattern 6 formed on the outer circumferential surface, and a female screw pattern (female screw pattern) on the inner circumferential surface of the screw hole 9 with an open upper side ( 7) is a member that is formed and is implanted and fixed to the alveolar bone (not shown) of the patient. The hybrid healing abutment 20 is fastened and fixed to the fixture 5 so that the gums are aesthetically rebuilt in the process of reconstructing the damaged gums (not shown) in order to place the fixture 5.

The hybrid healing abutment 20 includes a base 21 fitted to the fixture 5 and a protrusion 30 that is integrally bonded to the base 21 and protrudes away from the fixture 5. ). The base 21 is formed of a metal material, and preferably, may be formed of pure titanium (Ti) or a titanium alloy having excellent biocompatibility. The base 21 is a link portion 22 having a polygonal cross-section such as a hexagonal shape and an octagonal shape, and an inner tube portion protruding and extending in a direction away from the fixture 5, that is, in a positive (+) direction of the Z-axis. (23) is provided. The base 21 is formed with a screw through hole 27 extending parallel to the Z axis.

Around the opening of the screw hole 9 of the fixture 5, a link portion mounting groove 8 in which the link portion 22 is seated is formed. The link part seating groove 8 is formed to have a cross section corresponding to the polygonal cross-sectional shape of the link part 22. Therefore, when the link portion 22 is seated in the link portion seating groove 8, the hybrid healing abutment 20 cannot unintentionally rotate around an axis parallel to the Z axis.

The abutment protrusion 30 is formed of a polymer resin material. Preferably, it is excellent in biocompatibility and may be formed of PEEK (polyetheretherketone) or PEKK (polyetherketoneketone) having a light reflectance lower than that of metal. Since PEEK and PEKK have excellent wear resistance and impact resistance, the hybrid healing abutment 20 may exhibit durability comparable to that of a healing abutment formed entirely of a metal material.

The abutment protrusion 30 is connected to the base 21 and the diameter of the guide portion 31 is extended as it goes in parallel with the positive Z-axis (+) direction, and the end portion 33 connected to the guide portion 31 and the gum formation. ). The gum formation guide part 31 is a part that induces the gum 103 to grow as intended in the process of rebuilding the gum. The abutment protrusion 30 is formed with a screw through hole 38 extending parallel to the Z axis. The abutment protrusion 30 and the screw through holes 38 and 27 of the base 21 are aligned in a straight line parallel to the Z axis so that the screw 10 passes. In addition, when the link part 22 is seated in the link part mounting groove 8, the abutment protrusion 30 and the screw through holes 38 and 27 of the base 21 are screw holes 9 of the fixture 5 And are aligned in a line.

The distal end 33 has a pair of direction indicating grooves 34 arranged at 180° intervals around the screw through holes 38, and 180° intervals around the screw through holes 38. A pair of incision surfaces 36 are formed. The pair of direction indicating grooves 34 are grooves formed to be recessed to be differentiated from the periphery of the distal end 33, and the link part 22 is fitted into the link part seating groove 8 of the fixture 5 When the hybrid healing abutment 20 allows you to know the installation direction.

The pair of cut surfaces 36 are stepped surfaces to be differentiated from the periphery of the distal portion 33. When the protective cap 40 (see Fig. 3) or the impression cap 50 (see Fig. 4) to be described later is mounted so as to be covered with the abutment protrusion 30, the protective cap is caught by the pair of incision surfaces 36 Neither 40 nor the impression cap 50 is unintentionally rotated with respect to the abutment protrusion 30. On the other hand, when the end portion 33 is exposed because, for example, the protective cap 40, the impression cap 50, etc. are not covered on the abutment protrusion 30, the pair of incision surfaces 36 As with the pair of direction indicating grooves 34, it is possible to know the installation direction of the hybrid healing abutment 20.

A separation prevention groove 35 is formed on the outer circumferential surface of the distal end 33 so as not to be unintentionally separated after the protective cap 40 or the impression cap 50 is mounted on the abutment protrusion 30. In addition, a separation prevention elastic protrusion (not shown) protruding from the inner circumferential surface of the healing abutment mounting grooves 41 and 51 of the protective cap 40 and the impression cap 50 (see FIGS. 3 and 4) prevents the separation. The protective cap 40 and the impression cap 50 are not arbitrarily removed from the distal end 33 by being inserted into the groove 35 and elastically attached thereto.

The screw 10 for fastening the hybrid healing abutment 20 to the fixture 5 includes a screw column 13 extending parallel to the Z axis, and a screw head formed to have an expanded diameter at the upper end of the screw column 13 (11) is provided. A male screw pattern 15 is formed on the outer peripheral surface of the end of the screw pillar 13. Inserting the fastening screw 10 into the screw through holes 38 and 27 through the abutment protrusion 30 with the link part 22 of the base 21 fitted into the link part seating groove 8 of the fixture 5 And when rotated in one direction, the male screw pattern 15 at the end of the screw column 13 penetrating the base 21 is fastened to the female screw pattern 7 of the fixture screw hole 9. The screw 10 is rotated in one direction until the screw head 11 is caught in the inner diameter reduction step surface 39 formed on the inner circumferential surface of the screw through hole 38 of the abutment protrusion 30 and the screw 10 can no longer be rotated. When continuously rotated, the hybrid healing abutment 20 is firmly fixed to the fixture 5 by the screw 10.

The hybrid healing abutment 20 helps to regenerate and recover appropriately for installing a prosthesis, that is, a fixation abutment and a crown, incised for tooth extraction and implantation of the fixture 5 and wounded alveolar bone and gum. In addition, in the case of manufacturing a prosthesis based on image data by three-dimensional scanning of the inside of the oral cavity, even if the hybrid healing abutment 20 fixed to the fixture 5 is scanned as it is, bleeding due to light reflection Or, an image error such as blur does not occur.

In other words, because of the light reflective property of metal, the healing abutment formed entirely of a metal material has a smeared or blurred part in the scanning image, which makes it difficult to obtain clear scanning image data. Accordingly, in order to prevent the image error, a gloss removal solution is applied to the surface of the healing abutment, or a scan cap formed of a non-glossy polymer resin is covered and 3D scanning is performed.

However, in the hybrid healing abutment 20 according to an embodiment of the present invention, the abutment protrusion 30 is formed of a polymer resin material, so that the light reflectance of the surface of the abutment protrusion 30 is less than that of the base 21 surface. Therefore, even if the gloss removal liquid or the scan cap is not applied, the image obtained by scanning the inside of the oral cavity while the hybrid healing abutment 20 is fastened to the fixture 5 may include blurring or blurring due to light reflection. There is no image error. Accordingly, the intraoral scanning operation becomes easy, the operation cost is reduced, and the patient's pain and psychological burden are also reduced.

3 is a cross-sectional view showing a state in which a protective cap and a crown are mounted on the hybrid healing abutment of FIG. 2. Referring to FIG. 3, foreign substances are caught in the screw hole 38 of the hybrid healing abutment 20 fastened to the fixture 5 due to food intake, which may cause tooth decay, periodontal disease, or bad breath. To prevent this, the abutment protrusion 30 of the hybrid healing abutment 20 closes the screw hole 38 and a protective cap 40 surrounding the distal end 33 is detachably covered and mounted. Can be.

The protective cap 40 is formed of a polymer resin material, preferably, like the abutment protrusion 30, may be formed of a PEEK or PEKK material. A healing abutment mounting groove 41 is formed in the protective cap 40 so that the distal end 33 of the abutment protrusion 30 can be inserted while being in close contact with the abutment protrusion 30. Accordingly, an implant operator, that is, a dentist, can mount the protective cap 40 by covering the abutment protrusion 30 so that the distal end 33 is inserted into the healing abutment mounting groove 41 to be covered. When the protective cap 40 is mounted on the abutment protrusion 30 in this way, the protective cap 40 and the abutment protrusion 30 are elastically adhered to each other. Since both the abutment protrusion 30 and the protective cap 40 are formed of a polymer resin material, the elastic adhesion is greater and the static friction is greater than when the healing abutment, which is a metal material, and the protective cap 40, which is a polymer resin material, are in close contact.

In addition, as described above, a separation-preventing elastic protrusion (not shown) protruding from the inner circumferential surface of the healing abutment mounting groove 41 of the protective cap 40 is fitted into the separation-preventing groove 35 of the abutment protrusion 30 to make elastic contact. As a result, the protective cap 40 does not come off randomly from the abutment protrusion 30, and the protective cap 40 mounted on the abutment protrusion 30 is arbitrarily rotated with a pair of cut surfaces 36 of the abutment protrusion 30 Prevent it from doing. Therefore, the protective cap 40 is not easily separated from the abutment protrusion 30 while the patient ingests food or opens and closes the mouth.

The protective cap 40 alone can prevent foreign matter from being trapped in the hybrid healing abutment 20, but chewing food is incomplete, and pronunciation may leak when speaking. In particular, teeth other than the posterior and wisdom teeth, i.e., central incisors, lateral incisors, canines, and front molars, are clearly visible when the mouth is open, which is a reason why patients undergoing dental implant treatment avoid interpersonal contact. Therefore, a tooth-shaped crown 45 may be detachably covered and mounted on the protective cap 40 covered on the abutment protrusion 30. The crown 45 is a temporary crown that is covered on the protective cap 40 without applying a dental adhesive.

The temporary crown 45 is formed of a polymer resin material, and preferably may be formed of a PEEK or PEKK material like the abutment protrusion 30 and the protective cap 40. A protective cap mounting groove 46 is formed in the temporary crown 45 to correspond to the outer surface shape of the protective cap 40 so that the outer surface of the protective cap 40 can be inserted in close contact. Accordingly, an implant operator, that is, a dentist, can mount the temporary crown 45 by covering the protective cap 40 so that the protective cap 40 is inserted into the protective cap mounting groove 46 to be covered. In this way, when the temporary crown 45 is mounted on the protective cap 40, the temporary crown 45 and the protective cap 40 are in elastic contact, and the protective cap 40 and the abutment protrusion 30 are also elastically in close contact with the patient. The temporary crown 45 is not easily removed from the protective cap 40 during the operation of eating food or opening and closing the mouth, and the protective cap 40 is not easily removed from the abutment protrusion 30.

The protective cap 40 and the temporary crown 45 are separated from the abutment protrusion 30 when performing the above-described three-dimensional scanning or impression capping process using the impression cap 50 (see Fig. 4), and the 3 When the dimensional scanning or impression-taking process is finished, the abutment protrusion 30 may be covered again. In addition, the protective cap 40 and the temporary crown 45 are the hybrid healing abutment 20 when the hybrid healing abutment 20 is replaced with a permanent prosthesis, that is, a fixing abutment and a crown fixed by a dental adhesive thereto. ) Can be removed in the oral cavity.

4 is a cross-sectional view showing a state in which an impression cap is mounted on the hybrid healing abutment of FIG. 2. As described above, while the hybrid healing abutment 20 fastened to the fixture 5 is left as it is, data on the internal shape of the patient's oral cavity for prosthesis fabrication can be obtained by three-dimensional scanning, but by taking an impression Data on the shape of the patient's oral cavity may be obtained. Referring to FIG. 4, the impression cap 50 is mounted on the abutment protrusion 30 while the hybrid healing abutment 20 is fastened to the fixture 5 for taking the impression. Meanwhile, the shape of the impression cap 50 mounted on the abutment projection 40 is not limited to the shape shown in FIG. 4.

The impression cap 50 is formed of a polymer resin material. A healing abutment mounting groove 51 is formed in the impression cap 45 so that the distal end 33 of the abutment protrusion 30 can be inserted while being in close contact with the abutment protrusion 30. Accordingly, an implant operator, that is, a dentist, can mount the impression cap 50 by covering the abutment protrusion 30 so that the distal end 33 is inserted and covered in the healing abutment mounting groove 51. In this way, when the impression cap 50 is mounted on the abutment protrusion 30, the impression cap 50 and the abutment protrusion 30 are in elastic contact with each other.

In addition, as described above, the separation-preventing elastic protrusion (not shown) protruding from the inner circumferential surface of the healing abutment mounting groove 51 of the impression 50 is inserted into the separation-preventing groove 35 of the abutment protrusion 30 and is in elastic contact. The impression cap 50 is not easily removed from the abutment projection 30, and a pair of incision surfaces 36 of the abutment projection 50 prevents the impression 50 mounted on the abutment projection 30 from rotating arbitrarily. .

Meanwhile, the hybrid healing abutment 20 described above with reference to FIGS. 1 to 4 is a combination of two heterogeneous materials, that is, a portion 21 made of a metal material and a portion 30 made of a polymer resin material. Therefore, it was named'hybrid' healing abutment, but it can also be called a'hybrid' healing abutment in terms of use. Incidentally, the abutment projection of the hybrid healing abutment may be fixed with a permanent crown replacing the removed tooth of the patient. The permanent crown may be adhesively fixed to the abutment protrusion 30 via a dental adhesive. In other words, the hybrid healing abutment of the present invention may be used not only for a traditional healing abutment, but also for a fixed abutment.

5 is a view for explaining an injection injection step among the steps of a method of manufacturing a hybrid healing abutment according to an embodiment of the present invention. 2 and 5 together, the hybrid healing abutment manufacturing method according to an embodiment of the present invention includes a base forming step (S10), an adhesive application step (S20), an insert injection step (S30), and a finishing step. (S40) is provided. The base forming step S10 is a step of forming a base formed of a metal material. For example, the base 21 may be formed by mechanical processing such as CAD/CAM processing, or may be formed by die-casting.

The adhesive application step (S20) is a step of applying the dental adhesive 29 to a portion of the outer surface of the base 21 that is bonded to the abutment protrusion 30. Specifically, a portion of the outer surface of the base 21 that is joined to the abutment protrusion 30 has an outer peripheral surface 25 of the inner tube 23, an end surface 24 of one side of the inner tube 23, and the inner A stepped surface 26 stepped in the direction in which the diameter is expanded from the other end of the tube 23 is included.

In the insertion injection step (S30), the base 21 is inserted and seated in a cavity CA corresponding to the shape of the hybrid healing abutment 20 in the injection molding mold 60, and the molten polymer resin is placed in the cavity. It is a step of forming the abutment protrusion 30 integrally bonded to the base 21 by injection injection and curing into the (CA). In other words, the injection molding mold 60 includes an upper core 61 and a lower core 66 that are mold-opened and molded.

The upper core 61 has an upper shape defining surface 62 that defines the upper shape of the hybrid healing abutment 20 on the lower side, and the shape of the portion where the screw head 11 is fitted in the screw through hole 38. It is provided with a downward screw through-hole projection (63). The lower core 66 has a lower shape defining surface 67 defining a lower shape of the hybrid healing abutment 20 on the upper side, and a shape of a portion where the screw column 13 is fitted in the screw through holes 38 and 27. It is provided with an upward screw hole protrusion 68 to define. Although not clearly shown in FIG. 5, the injection molding mold 60 includes an upper disc supporting the upper core 61, a lower disc supporting the lower core 66, and the upper core 61 and the lower core 66. It further includes an eject pin for separating the healing abutment 20 including the periodontal protrusion 30 hardened in the cavity CA from the lower core 66 so as to be retractable after the mold opening.

In addition, in the upper core 61, a runner (not shown) in which the molten resin injected into the injection molding mold 60 from a resin injection device (not shown) moves, and the molten resin includes the cavity ( CA) is further provided with a gate (not shown) connected to the end of the runner. When the upper core 61 and the lower core 66 are joined together, the upper shape limiting surface 62 and the lower shape limiting surface 67 are connected, and the lower end of the downward screw through protrusion 63 and the upward screw through protrusion 68 The upper end of) is in close contact to form a closed space, a cavity (CA).

When the molten resin injected into the cavity CA is cured, it is integrally bonded with the base 21. As described above, since the dental adhesive is applied to the interfaces 24, 25, 26 between the base 21 and the abutment protrusion 30, the volume of the polymer resin may slightly shrink during the curing process of the molten polymer resin. However, nevertheless, the base 21 and the abutment protrusion 30 are kept in a solidly integrally bonded state. The hybrid healing abutment 20 including the abutment protrusion 30 hardened in the cavity CA is taken out from the mold 60 after the upper core 61 and the lower core 66 are mold-opened.

The finishing step (S40) is a step of grinding the surface of the hybrid healing abutment 20 taken out from the mold 60 and processing it into a shape of a finished product. The finishing step S40 may include forming a separation prevention groove 35 (see FIG. 1) in the distal end 33 of the abutment protrusion 30.

The present invention has been described with reference to the embodiments shown in the drawings, but these are merely exemplary, and those of ordinary skill in the art will appreciate that various modifications and other equivalent embodiments are possible therefrom. Therefore, the true scope of protection of the present invention should be determined only by the appended claims.

5: fixture 10: screw
20: hybrid healing abutment 21: base
30: abutment projection 40: protective cap
50: impression cap 60: injection mold

Claims (9)

It is fastened by a screw to a fixture fixed to the alveolar bone during a dental implant procedure,
A base formed of a metal material and fitted into the fixture; And, an abutment protrusion formed of a polymer resin material and integrally bonded to the base and protruding in a direction away from the fixture; and
The base and the abutment protrusion are aligned in a straight line so that the screw passes through, and a continuous screw hole is formed,
The light reflectance of the abutment protrusion surface is less than the light reflectance of the base surface, and the image obtained by scanning the inside of the oral cavity while the hybrid healing abutment is fastened to the fixture contains an error due to light reflection. Hybrid healing abutment, characterized in that there is no ). The method of claim 1,
The base is a hybrid healing abutment, characterized in that formed of a metal material of one of pure titanium (Ti) and titanium alloy. The method of claim 1,
The abutment projection is a hybrid healing abutment, characterized in that formed of a polymer resin material of one of PEEK (polyetheretherketone) and PEKK (polyetherketoneketone). delete The method of claim 1,
A protective cap formed of a polymer resin material, which covers the screw hole of the abutment projection, is detachably covered on the abutment projection,
The protective cap is a hybrid healing abutment, characterized in that the elastic contact with the abutment projection. The method of claim 5,
A tooth-shaped crown formed of a polymer resin material is detachably covered on the protective cap,
The crown is hybrid healing abutment, characterized in that the elastic contact with the protective cap. The method of claim 1,
Hybrid healing abutment, characterized in that an impression cap is mounted on the abutment protrusion in order to obtain an impression inside the oral cavity while the abutment protrusion is fastened to the fixture. A method for preparing the hybrid healing abutment according to any one of claims 1 to 3,
A base forming step of forming the base; And,
An insertion injection step of inserting and seating the base in a cavity corresponding to the shape of the hybrid healing abutment in a mold, injection-injecting and curing a molten polymer resin into the cavity to form the abutment protrusion; Hybrid healing abutment manufacturing method characterized in that. The method of claim 8,
Prior to the injection injection step, an adhesive application step of applying a dental adhesive to a portion of the outer surface of the base that is joined to the abutment protrusion; hybrid healing abutment manufacturing method characterized in that it further comprises.

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