KR101452849B1 - Dental prosthesis method using multi-function abutment set - Google Patents

Abstract

The present invention provides a method for manufacturing a dental prosthesis, including: a multi-functional abutment tightening step of tightening a multi-functional abutment to an implant fixture planted on the alveolar bone of a patient; a protective cap mounting step of putting a protective cap onto the multi-functional abutment, wherein the protective cap covers the exposed upper surface of the multi-functional abutment and is put onto the abutment; an impression cap mounting step of separating the protective cap from the multi-functional abutment after a predetermined healing period of time and putting the impression cap onto the top of the multi-functional abutment; an impression taking step of embedding the impression cap in the impression obtained using an impression material while the impression cap is put on the abutment; an oral model manufacturing step of manufacturing an oral model from the obtained impression; and a dental prosthesis manufacturing step of manufacturing an upper prosthesis from the oral model.

Description

[0001] DENTAL PROSTHESIS METHOD USING MULTI-FUNCTION ABUTMENT SET USING A MULTI-FUNCTION ABUTMENT SET [0002]

The present invention relates to a method of manufacturing a dental prosthesis, and more particularly, to a method of manufacturing a dental prosthesis using a multifunctional abutment set that functions as a healing abutment and serves as a scan pin and constitutes a final prosthesis .

In general, teeth play a role in correcting pronunciation related to eating habits and social activities related to eating habits, and it is also important in terms of aesthetics because it affects facial expression.

Since human teeth are replaced with permanent teeth once in childhood, new teeth are not created when teeth are lost. Therefore, dentistry restores lost teeth and surrounding tissues through prosthetic treatment, .

However, this general dental treatment method can not be tolerated because it causes some damage to adjacent teeth, surrounding gums, and bone tissue. If dentures are used, it will lead to a reduction in chewing ability In addition, it had disadvantages such as discomfort or foreign body sensation.

An artificial tooth implantation method has been proposed to overcome the drawbacks of this universal prosthetic treatment method. According to this method, it is possible to restore all the functions and aesthetics almost the same as natural teeth without damaging the surrounding teeth or tissues when the tooth is defective.

In this way, the implants that have been spotlighted in the recent years can be used as artificial alternatives to natural teeth by providing an artificial tooth by osteosynthesis in the alveolar bone. Implants generally consist of three parts: a fixture corresponding to artificial root, an abutment corresponding to an abutment, and an artificial tooth. A fixture is a fixture that is implanted in the alveolar bone of a missing tooth area, such as the root of a natural tooth, to support an artificial tooth. Abutment is also referred to as abutment, and is intended to connect the artificial teeth with the fixtures that are planted in the alveolar bone at the gingival region.

Artificial teeth are fixed in the oral cavity by abutment and are designed to reproduce the same shape and function as natural teeth.

The implantation process for recovering lost teeth using such an implant is as follows.

The transplantation process is largely divided into surgical procedures, ie, surgical procedures and prosthodontic restorations. Basic tests such as blood tests are performed to check compliance before surgery, and the site of bone grafting In order to evaluate the amount, oral examination and radiographic examination are preceded. When these series of examinations are completed, they are entered into a surgical procedure, which is referred to as a primary operation. First, in order to transplant an artificial root corresponding to a root into an alveolar bone under anesthesia, the gums are opened, the alveolar bone tissue is exposed, Suture the gums once.

However, the conventional implants are mainly made of a cylindrical shape or a root-like shape having a rounded shape, and the shape and size of the cutting edge are processed to a constant size irrespective of the diameter or length of the implant, The lack of ability leads to the inconvenience that the alveolar bone should be enlarged sufficiently before using the cutting tool. As a result, it is difficult to obtain a strong initial fixation force with the alveolar bone.

Then, in the case of an all-in-one implant with a gingival perforation after 3 to 6 months according to bone quality, it is possible to make an artificial tooth with the impression immediately, but in the case of the separated type, the second operation is performed. If the gingiva is completely healed, the abutment is tightened and the workpiece is connected to the abutment. However, when making an impression, it is troublesome to remove the healing abutment for confirming the suitability by radiography and conclude the healing abutment after the impression is made in order to conclude the impression coping.

A related art is Korean Patent No. 10-0841218 (registered date June 19, 2008) 'implant device'.

It is an object of the present invention to provide a dental prosthesis manufacturing method using a multifunctional abutment set which plays a role of a healing abutment for esthetic gingival formation and does not require troublesome attachment and detachment operation during impression taking or oral scan.

Another object of the present invention is to provide a method of manufacturing a dental prosthesis that can reduce the number of attaching / detaching operations to a fixture when manufacturing a dental prosthesis.

It is still another object of the present invention to provide a dental prosthesis manufacturing method for reducing the X-ray exposure dose by reducing the number of times of X-ray imaging in manufacturing a dental prosthesis.

The present invention relates to a multifunctional abutment fastening step for fastening a multifunctional abutment to a fixture placed on an alveolar bone of a patient; Attaching a protection cap to the multifunctional abutment to surround the exposed upper surface of the multifunctional abutment; An impression cap mounting step of separating a protection cap fitted to the multifunctional abutment after the healing time and inserting an impression cap into an upper portion of the multifunctional abutment; An impression preparing step of making an impression by using an impression material in a state where the impression cap is fitted, and making the impression cap embedded in the impression obtained; A mouth model manufacturing step of manufacturing an oral model from the impression-impressed impression; And preparing a prosthesis by designing an upper prosthesis from the oral cavity model.

And a mouth model three-dimensional scanning step of scanning the three-dimensional shape of the prepared oral cavity model after the oral cavity model manufacturing step.

It is preferable that the step of manufacturing the prosthesis is designed and manufactured using CAD and cam using the oral model three-dimensional shape data.

In the step of manufacturing the dental prosthesis, the shape of the designed final prosthesis can be manufactured using a three-dimensional printer.

The step of manufacturing the dental prosthesis may be performed using a final abutment having the same lower shape as the multifunctional abutment fastened to the fixture in the oral cavity.

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In addition, the multifunctional abutment is constituted by a set of a protection cap, an impression cap, and a temporary tooth cap which are fastened to the multifunction abutment.

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The present invention provides a method of manufacturing a dental prosthesis using a multifunctional abutment set which serves as a healing abutment for esthetic gingival formation and does not require troublesome attachment and detachment operation during impression taking or oral scan.

The present invention has the effect of reducing the number of attaching and detaching operations to a fixture when manufacturing a dental prosthesis. In addition, when manufacturing dental prostheses, it reduces the number of X-ray exposures and reduces the amount of X-ray exposure.

1 is a flowchart illustrating a method of manufacturing a dental prosthesis using a multifunctional abutment set according to an embodiment of the present invention;
2 is a perspective view showing a multifunctional abutment used in the present invention,
3 is a front view showing a multifunctional abutment used in the present invention, Fig.
4 is a plan view of a multifunctional abutment used in the present invention,
5 is a perspective view of an impression cap used in the present invention,
6 is a bottom view of the impression cap used in the present invention,
7 is a front view of an impression cap used in the present invention,
8 is a view showing a state where a multifunctional abutment according to the present invention and an impression cap are combined,

Hereinafter, a method of manufacturing a dental prosthesis using a multifunctional abutment set according to an embodiment of the present invention will be described in detail with reference to the drawings.

1 is a flowchart illustrating a method of manufacturing a dental prosthesis using a multifunctional abutment set according to an embodiment of the present invention.

The method of manufacturing a dental prosthesis according to the present invention is to manufacture a customized dental prosthesis using a multifunctional abutment set, thereby minimizing the number of abutment attachment / detachment to the fixture placed on the alveolar bone, thereby reducing the work flow required for manufacturing the dental prosthesis And the inconvenience due to detachment and attachment is reduced.

Generally, in order to manufacture a customized dental prosthesis, a healing abutment for forming an aesthetic gum is fastened to a fixture placed in the alveolar bone, and then a healing abutment is separated from the fixture for making an impression, After the coping is fixed to the fixture, the impression is removed, the impression coaching is separated, the healing abutment is fixed to the fixture, and the final restoration is made, the healing abutment is again separated from the fixture. And a process of concluding it to a fixture.

However, since such an operation must be performed in the oral cavity of the patient, it is inconvenient in terms of the patient's position, and has a problem in that it is inconvenient because a lot of work flow is required from a doctor's standpoint.

In addition, when the fixture is attached to or detached from the healing abutment, or when the impression copings are attached, the X-ray is taken to confirm whether the X-ray is correctly fastened. If the number of times of detachment is reduced, It also has the effect of reducing X-ray exposure.

The present invention provides a method of manufacturing a dental prosthesis useful for both a patient and a physician by reducing the number of times fixtures are detached and attached using a multifunctional abutment set.

The multifunctional abutment set of the present invention includes a multifunctional abutment to be fastened to a fixture placed on an alveolar bone, a protection cap removably attachable to and detachable from the multifunctional abutment, And a temporary tooth cap removably attachable to and detachable from the multifunctional abutment.

Referring to FIG. 1, a method of manufacturing a dental prosthesis according to the present invention includes a multifunctional abutment fastening step (S110) of fastening a multifunctional abutment to a fixture placed on an alveolar bone, and a multifunctional abutment fastening step (S120) of inserting the cap into the cap, a step of mounting an impression cap (S130) for separating the protection cap from the multifunctional abutment and sandwiching the impression cap for impression taking, a step of attaching the impression (S140) for acquiring three-dimensional image data of the oral environment of the patient after the impression taking, a step S150 for performing an oral three-dimensional scan (S150) for acquiring the three-dimensional image data of the oral environment of the patient after the impression taking, (S160), a mouth model preparation step (S170) for manufacturing a mouth model from the obtained impression, and a step And a prosthesis and the design stage (S180) to design a water-like, prosthesis manufacturing step for manufacturing a prosthesis designed as a shape (S190).

Hereinafter, each step will be described in detail.

The multifunction abutment fastening step S110 is a step of selecting and fastening the multifunctional abutment suitable for the oral environment of the patient in the previously prepared multifunction abutment set.

The multifunctional abutment is selected from the group prepared for each individual tooth.

For example, a multifunctional abutment is prepared according to the types of teeth such as anterior teeth, canines, premolars, and molars, and it is preferable that the height and the diameter are prepared differently from those corresponding to the kinds of teeth.

After selecting a multifunctional abutment suitable for the oral environment of the patient, the multifunctional abutment is fastened to the fixture placed in the patient's alveolar bone using the fastening screw.

The present invention is capable of manufacturing a final prosthesis without ever separating the multifunctional abutment thus fastened, and further, when the multifunctional abutment constitutes a part of the final prosthesis, until the final prosthesis is coupled to the patient ' s oral environment It provides a way to ensure that multifunction abutments are never isolated.

Next, the protection cap attaching step (S120) is performed.

The protection cap mounting step S120 is to fit the protection cap to the multifunctional abutment fastened to the fixture. The multi-functional abutment is fitted with a protective cap to serve as a healing abutment.

The multifunctional abutment is provided with a fastening hole for fastening the fastening screw to the fixture and has a groove for fitting with the impression cap or the like and a flat surface for directional identification,

Since the multifunctional abutment may have a problem of being stuck with food or may increase the inconvenience of the patient, it is preferable that the protection cap, which is coupled to the upper surface of the multifunctional abutment and has a smooth surface, It is sandwiched between the two.

Next, an impression cap mounting step (S130) is performed.

As the healing time increases after inserting the multifunctional abutment, the gums form aesthetic gums in the lower part of the multifunctional abutment.

Thereafter, the patient's oral environment is raised. In preparation for the impression preparation, the protection cap is detached from the multifunctional abutment, and then the impression cap is inserted.

The specific shape of the impression cap will be described later.

The impression cap is configured to be detachable from the multifunctional abutment with the impression material when fitted in the multifunctional abutment with the fit-in engagement.

Next, the oral three-dimensional scanning step S150 is performed. The oral three-dimensional scan is for obtaining three-dimensional data of the oral environment of the patient and can be performed using a mouth scanner.

If the oral environment scan of the patient using the oral scanner is not easy, it may be replaced with a three-dimensional scan of the oral model manufactured in the oral cavity model manufacturing step described later.

The oral three-dimensional scan step S150 may be performed only after the multifunction abutment engaging step S110 and before the prosthesis designing step S180 and may be performed between the impression preparing step S140 and the temporary tooth attaching step S160 It does not have to be done.

Next, a temporary tooth cap mounting step (S160) is performed. The provisional tooth cap is not intended for functionality, but for temporary aesthetics, and the temporary tooth loading step (S160) may be omitted.

The temporary tooth cap is removably attachable to the multifunctional abutment.

The oral model manufacturing step S170 is to manufacture an oral model using the impression obtained in the impression preparing step S140.

In the impression taking step, an impression material with an impression cap is obtained. A multifunctional abutment of the same size as the multifunctional abutment selected in the impression cap embedded in the impression material, and a replica corresponding to the fixture placed in the alveolar bone of the patient, The oral cavity model is manufactured, and the oral cavity model in which the replica corresponding to the fixture is embedded is manufactured on the manufactured oral cavity model. That is, it is possible to obtain a fixture-level oral model.

At this time, the replica and the multifunctional abutment are fitted to the impression cap in a state of being fastened with a screw, and after removing the impression cap from the impression cap after the plaster model operation, the screw is removed from the plaster model, A fixture level oral model can be manufactured in a manner that separates the model from the replica.

Next, the step of designing the prosthesis (S180) is performed.

The design of the prosthesis is to design a shape suitable for the oral environment of the patient in consideration of the adjacent tooth, the abutment, and the like, using the oral model and the three-dimensional data of the oral environment of the acquired patient.

The present invention provides a design method when a multifunctional abutment becomes part of a final prosthesis, and a separate, separate final prosthesis design method that does not use a multifunctional abutment.

a) When the multifunctional abutment is part of the final prosthesis, the design is to design the shape of the prosthesis in the form that it is fastened to the multifunctional abutment,

b) In the case of a final prosthesis separate from the multifunctional abutment, the shape of the prosthesis having a shape that is directly fastened to the fixture is designed.

CAD can be used for the shape design of the prosthesis.

When CAD is used, the shape of a multifunctional abutment that can be fastened to a fixture can be stored as a library, and the design time can be shortened by using the stored library.

In addition, standard tooth shape data may be stored in a library and used.

When designing using the multifunctional abutment library and the standard tooth shape library, the selected multifunctional abutment and the standard shape of the corresponding tooth can be recalled and then deformed appropriately to the patient's oral environment. do.

When the shape design of the prosthesis is completed, the prosthesis manufacturing step (S190) is performed according to the designed shape.

When the CAD is used in the shape design of the prosthesis, the prosthesis can be manufactured through precision processing using design data or printing using a three-dimensional printer.

Next, a multifunction abutment set used in the present invention will be described.

FIG. 2 is a perspective view showing a multifunctional abutment used in the present invention, FIG. 3 is a front view showing a multifunctional abutment used in the present invention, and FIG. 4 is a plan view showing a multifunctional abutment used in the present invention .

As shown in the drawing, the multifunctional abutment 100 according to the present invention is fastened to a fixture (not shown) placed in the alveolar bone using a separate screw (not shown).

The multifunctional abutment 100 according to the present invention includes a fastening part 110 having a polygonal fitting protrusion 112 corresponding to a polygonal groove shape of a fixture placed in an alveolar bone, And a lower body 120 formed integrally with the lower body 120 and formed in a shape that the diameter of the upper body 120 increases toward the upper portion of the upper body 120. The upper body 120 is formed integrally with the lower body 120 and has a tapered shape, A cutout surface 132 formed symmetrically on both sides of the upper body 130 and a concave groove 134 formed on a surface at an angle of 90 degrees with the cutout surface 132; And a fastening hole 140 formed in the upper body 130 so as to pass through the fastening part 110.

A guide groove 136 is formed in the upper body 130 and a guide protrusion 226 of the impression cap 200 is inserted into the guide groove 136.

A polygonal groove is formed in the upper part of the fixture, so that it can be coupled with the prosthesis coupled to the fixture with a certain directionality.

Generally, a hexagonal groove is formed, but it is not limited to a hexagonal shape and may have a pentagonal shape, an octagonal shape, or a D shape.

The fastening part 110 of the multifunctional abutment 100 is fitted to the upper end of the fixture and has a fitting protrusion 112 having a shape corresponding to the polygonal groove so as to be able to engage with the fixture in a predetermined direction . In the illustrated embodiment, the fitting protrusion 112 has a hexagonal shape.

When the fastening portion 110 of the multifunctional abutment 100 is fitted to the upper end of the fixture, the fitting protrusion is inserted into the polygonal groove, and the multifunctional abutment 100 is prevented from rotating in a coupled state.

The lower body 120 is a part for determining the recovery form of the gingiva and the soft tissue, and has a shape that widens toward the upper part.

The upper body 130 is provided with a cut surface 132 and a concave groove 134.

The incision surface 132 is formed symmetrically on both sides of the upper body 130. That is, the two cut surfaces 132 are formed as parallel planes.

Further, it is preferable that the incision surface 132 is formed parallel to the two surfaces of the fitting projection 112. The incision surface 132 plays a role in allowing the impression cap to be fitted into the multifunctional abutment and to be fitted in place when the impaction cap is coupled with the impression cap. Also, in some cases, the impression may be obtained without fastening the impression cap. At this time, the impression material and the multifunctional abutment are aligned with respect to the incision surface 132.

This is to enable the multifunction abutment 100 to identify the orientation of the fixture concave groove through the incision surface 132 in a state where it is coupled to the fixture.

In other words, the shape of the polygonal groove formed on the fixture can be confirmed by the incision surface 132.

When the patient's oral environment is scanned using an oral scanner, the incision surface 132 provides an effect of identifying the directionality of the fixture without separating the multifunctional abutment 100. [

If the upper body 130 has a circular cross section without the cut surface 132, the directionality of the fixture can not be identified from the multifunctional abutment.

In addition, the incision surface 132 also has an effect of facilitating the attachment / detachment of the impression cap to be described later.

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The height h1 of the upper body 130 is preferably in the range of 2.8 to 4.0 mm. When the height is less than the above range, it is difficult to secure a strong coupling force with the impression cap. When the height exceeds the above range, the upper body 130 comes into contact with the opposing portion, .

The upper body 130 has a shape in which the cross section becomes narrower toward the upper part, which is for smooth coupling with the coupled impression cap.

It is preferable that the taper angle of the upper body 130 is in the range of 3 to 9 degrees.

When the taper angle is less than 3 degrees, the coupling with the impression cap may not be smooth, and when the taper angle exceeds 9 degrees, the impression cap may not be firmly coupled.

The upper body 130 is provided with a concave groove 134. The concave groove 134 is formed on a surface forming an angle of 90 degrees with the cut surface 132. [ The concave groove 134 is fitted in the projection of the impression cap 200 and serves to enable the impression cap 200 to be engaged in place without rotating relative to the multifunctional abutment 100.

Meanwhile, the height h2 of the lower body 120 is preferably in the range of 1 to 9 mm.

The lower body 120 may have different heights depending on the type and size of the target teeth.

For example, the height of the lower body 120 is 3 mm, 5 mm, and 7 mm, and three kinds of multifunctional abutments are provided.

Next, an impression cap detachably attachable to the multifunctional abutment used in the present invention will be described.

FIG. 5 is a perspective view of an impression cap used in the present invention, FIG. 6 is a bottom view of an impression cap used in the present invention, and FIG. 7 is a front view of an impression cap used in the present invention.

As shown in the drawings, the impression cap 200 according to the embodiment of the present invention includes a body 210 having a cylindrical or incised one side and a polygonal column, A polygonal plate 230 protruding in the form of a polygonal plate on an outer circumferential surface of the body 210 and an engaging groove 220 corresponding to the shape of the upper body 130 of the multifunctional abutment 100, And a coupling protrusion 222 fitted in the concave groove 134 of the multifunctional abutment 100. As shown in FIG.

The guide protrusions 226 are inserted into the guide grooves 136 of the multifunctional abutment 100 so that the guide protrusions 226 are inserted into the guide grooves 136, .

One side of the body 210 has an incised shape in order to facilitate access to the fastening screw of the multifunctional abutment 100 in a state where the impression cap 200 is inserted. The conventional inconvenience that the tool can be accessed only through the upper portion of the impression cap 200 can be solved by making the tool accessible through the incised portion at one side.

The coupling groove 220 has a coupling surface 224 corresponding to the cut surface 132 formed in the multifunctional abutment and the outer peripheral surface of the body 210 corresponding to the coupling surface 224 has And a flat surface 212 parallel to the mating surface 224.

In the illustrated embodiment, the body is formed in a cylindrical shape, but it is not limited to this shape, and may be formed in the shape of a polygonal column (for example, a square column, a hexagonal column, or the like).

The incision surface of the multifunctional abutment is formed to coincide with the polygonal surface of the lower fastening portion of the multifunction abutment for indicating the directionality of the fixture placed in the alveolar bone. Therefore, when the engaging surface 224 is fitted in a direction parallel to the cut surface, the flat surface 212 provided on the outer circumferential surface of the body 210 coincides with the polygonal surface of the multifunctional abutment engaging portion, The surface 212 displays the directionality of the fixture.

Further, a coupling protrusion 222 protruding in a semicircular shape is provided on the inner peripheral surface of the impression cap 200.

The engaging projection 222 is a portion that is fitted to the concave groove (134 in Fig. 2) of the multifunctional abutment described above, and preferably has a semi-circular cross-section for smooth detachment.

The T-shaped bracket 240 formed at the upper end of the body 210 includes a piece 244 having a length corresponding to the polygonal plate 230 and a long piece 244 having a longer length than the piece 224 242).

At this time, the long piece 242 and the piece piece 244 are formed to be perpendicular to each other, and the length direction of the piece piece or the long piece may be formed parallel to the coupling surface 224.

The longitudinal direction of the long piece 242 may be formed parallel to the flat surface 212 in the illustrated embodiment. When the longitudinal direction of the long piece 242 is formed parallel to the flat surface 212, the direction of the flat surface 212 in the direction of the long piece 242 can be identified.

The T-seam 240, along with the polygonal plate 230, has the effect of increasing the bond strength between the impression material and the impression cap during impression taking.

The T-seam 240 also facilitates connection during bridge impression. The widened occlusion table due to the T-edge 240 provides a sense of stability when the byte is applied and acts as an accurate byte table.

If the impression cap 200 of the present invention is fastened to the multifunctional abutment fastened in the oral cavity of the patient, the impression cap 200 according to the present invention may be flattened by the adjacent teeth or gums, It may be difficult to identify the surface 132, in which case the direction of the flat surface 132 (eventually the direction of the polygonal groove of the fixture) through the direction of the T-

If the long piece 242 and the short piece 244 are formed to have the same length without being formed to have different lengths, they can not achieve this function because they exhibit two directions.

The impression cap 200 according to the present invention may be used as a verification jig for confirming the relative position of adjacent teeth. In this case, after the impression caps are respectively fastened to the healing abutments of the adjacent teeth, the verifying jig can be manufactured by connecting the T-shaped portion 240 with resin or the like.

The impression cap 200 according to the present invention can use a synthetic resin material that can be cut with a cutter. So that the impression cap 200 can be cut with a cutter when the height of the impression cap 200 is excessive according to the oral environment of the patient. For example, it is possible to cut between the T-shaped portion 240 and the polygonal plate 230, or cut between the polygonal plates 230.

As a representative material for manufacturing the impression cap 200, there is a POM resin (polyacetal resin). Polyacetal is a milky white thermoplastic resin produced by polymerization (polymerization) of formaldehyde (CH 2 O) and trioxane (CH 2 O) 3, and there are two types of homopolymer and high polymer. Polyacetal has high crystallinity, excellent mechanical properties such as bending strength, dimensional stability, endothelial property and abrasion resistance. Therefore, polyacetal has properties most similar to those of engineering plastics, to be.

8 is a view showing a state where a multifunctional abutment according to the present invention is combined with an impression cap.

When the fastening portion 110 of the multifunctional abutment 100 is fitted to the upper end of the fixture, the fitting protrusion is inserted into the polygonal groove, and the multifunctional abutment 100 is prevented from rotating in a coupled state.

When the multifunctional abutment 100 is coupled to the fixture and the impression cap 200 is pushed on the multifunctional abutment 200, When the body 130 is inserted and the engaging protrusion 222 of the impression cap 200 is inserted into the concave groove 134 of the upper body 130 of the multifunctional abutment 100, And is firmly coupled to the butt 200.

The multifunctional abutment 200 is formed of a medical metal material such as a titanium alloy and the impression cap 200 is formed of a synthetic resin material having elasticity of the material itself so that the impression cap 200 is elastically deformed, And is fitted with the butt 100.

In this way, when the impression is obtained by using the impression material while the impression cap 200 is fitted to the multifunctional abutment 100, the impression cap 200 is separated from the impression material while being embedded in the impression material.

Therefore, the impression cap 200 remains on the impression picker, and information such as the direction and height of the fixture can be acquired by using the remaining impression cap 200. [

100: multifunctional abutment 110: fastening part
120: lower body 130: upper body
132: incision surface 134: concave groove
140: fastening ball
200: Impression cap 210: Body
212: flat surface 220: engaging groove
222: engaging projection 224: engaging surface
230: polygonal plate 240: T seat
242: long piece 244: short piece

Claims (11)

delete delete A multifunctional abutment fastening step of fastening the multifunctional abutment to the fixture placed on the alveolar bone of the patient;
Attaching a protection cap to the multifunctional abutment to surround the exposed upper surface of the multifunctional abutment;
An impression cap mounting step of separating a protection cap fitted to the multifunctional abutment after the healing time and inserting an impression cap into an upper portion of the multifunctional abutment;
An impression preparing step of making an impression by using an impression material in a state where the impression cap is fitted, and making the impression cap embedded in the impression obtained;
A mouth model manufacturing step of manufacturing an oral model from the impression-impressed impression;
And a step of manufacturing a prosthesis by designing an upper prosthesis from the oral cavity model.
The method of claim 3,
After the mouth model preparation step,
And a mouth model three-dimensional scanning step of scanning the three-dimensional shape of the prepared oral cavity model.
5. The method of claim 4,
The step of manufacturing the prosthesis
And designing and manufacturing the dental prosthesis using the CAD and the cam using the oral model three-dimensional shape data.
6. The method of claim 5,
The step of manufacturing the prosthesis
Wherein the shape of the designed final prosthesis is manufactured using a three-dimensional printer.
6. The method of claim 5,
The step of manufacturing the prosthesis
Wherein the dental prosthesis is fabricated using an abutment having the same lower shape as the multifunctional abutment fastened to the alveolar bone.
delete delete delete A method of manufacturing a dental prosthesis using a multifunctional abutment to be fastened to a fixture placed on an alveolar bone of a patient and a multifunctional abutment set including an impression cap removably attachable to the multifunctional abutment,
The multifunctional abutment includes a fastening portion having a polygonal fitting protrusion corresponding to a polygonal groove shape of a fixture placed on an alveolar bone, and a fastening portion formed integrally with the fastening portion and having a larger diameter An upper body integrally formed above the lower body and formed in a tapered shape having a smaller diameter toward the upper portion, a cut surface formed symmetrically on both sides of the upper body, and a cut- And a fastening hole formed in the upper body so as to penetrate the fastening portion,
The impression cap may include a cylindrical body having one side cut out or a polygonal columnar body having one side cut out, an engagement groove corresponding to an upper body shape of the multifunctional abutment formed and connected to the inside of the body, A T-shaped bracket formed in a T-shape at an upper end of the body, and a coupling protrusion fitted to the concave groove of the multifunctional abutment,
A multifunctional abutment fastening step of fastening the multifunctional abutment to the fixture placed on the alveolar bone of the patient;
Attaching a protection cap to the multifunctional abutment to surround the exposed upper surface of the multifunctional abutment;
An impression cap mounting step of separating a protection cap fitted to the multifunctional abutment after the healing time and inserting an impression cap into an upper portion of the multifunctional abutment;
An impression preparing step of making an impression by using an impression material in a state where the impression cap is fitted, and making the impression cap embedded in the impression obtained;
A mouth model manufacturing step of manufacturing an oral model from the impression-impressed impression;
And a step of manufacturing a prosthesis by designing an upper prosthesis from the oral cavity model.

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