WO2015030289A1

WO2015030289A1 - Method for manufacturing dental prosthesis by using healing abutment and impression cap capable of being fastened thereto

Info

Publication number: WO2015030289A1
Application number: PCT/KR2013/008098
Authority: WO
Inventors: 김정한; 황준호; 박현위
Original assignee: 라파바이오 주식회사
Priority date: 2013-08-28
Filing date: 2013-09-06
Publication date: 2015-03-05

Abstract

Provided is a method for manufacturing a dental prosthesis, comprising: a healing abutment fastening step of fastening, to a fixture, a healing abutment selected from a healing abutment group having a predetermined height and diameter; an impression taking step of coupling, by insertion, an impression cap to the healing abutment fastened to the fixture, and taking an impression by using an impression material such that the impression cap is buried in the taken impression; a mouth model manufacturing step of manufacturing a fixture-level mouth model by using the dimension information of the selected healing abutment and the taken impression; and a dental prosthesis manufacturing step of manufacturing a dental prosthesis suitable for the mouth model.

Description

Method of manufacturing dental prosthesis using healing abutment and impression cap that can be fastened to it

The present invention relates to a method for manufacturing a dental prosthesis, and more particularly, to a method for manufacturing a dental prosthesis using a healing abutment and an impression cap that can be fastened thereto.

In general, teeth serve to help digestion by crushing or grinding food. If these teeth are lost, you will not be able to chew your food properly and you will not be able to digest it. Therefore, teeth have been recognized as an important part of the body since ancient times, and play an important role in living a healthy life.

Since human teeth are replaced with permanent teeth once in childhood, if a tooth is lost, new teeth can no longer be formed. Therefore, the dentist can restore the chewing function by repairing the lost tooth or its surrounding tissue through prosthetic treatment. Can be.

However, these general dental treatments cause some damage to adjacent teeth, surrounding gums, and bone tissues, which can not be avoided, and when dentures are used, the chewing ability is reduced compared to natural teeth. In addition, it had the disadvantage of causing discomfort or foreign object.

The artificial tooth transplantation method proposed to supplement and solve the shortcomings of such a universal prosthetic treatment method. By this method, the tooth defect can restore almost all the same functions and appearances as natural teeth without damaging the surrounding teeth or tissues.

As such, implants, which have recently been in the spotlight, serve as artificial substitutes for natural teeth by allowing artificial teeth to be prepared for bone bonding. Implants generally consist of three parts: a fixture for the artificial root, an abutment for the abutment, and an artificial tooth. A fixture is a fixture that is implanted in the alveolar bone of a missing tooth, such as the root of a natural tooth, to support an artificial tooth. Abutments, also known as abutments, are designed to connect artificial teeth with fixtures that are planted in the gums and planted in the alveolar bone.

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

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

The transplantation process is largely divided into surgical procedures, namely, surgical methods and prosthetic restorations. Before the operation, basic tests such as blood tests are performed to check the suitability, and the area to be transplanted is selected and the bone tissue quality and In order to evaluate the amount, oral examination and radiographic examination will be preceded. When this series of tests is completed, the surgical procedure is called the first operation. First, under the anesthesia, an artificial root corresponding to the root is implanted into the alveolar bone, the gum is cut, the alveolar tissue is exposed, and then the artificial root is inserted. Suture the gum once.

By the way, the conventional implant is mainly made of a cylindrical or apex round tooth root shape and the cutting edge shape or size is processed to a certain size irrespective of the diameter or length of the implant so that the bone can be dug into the bone when placed in the alveolar bone Insufficient ability is accompanied by the hassle to expand the alveolar bone first enough using a cutting mechanism. As a result, it may be difficult to obtain a strong initial fixation with the alveolar bone.

Then, after three to six months, depending on the bone quality, in the case of an integral implant with gingival penetrating parts, the impression can be made immediately and the processed teeth can be manufactured, but in the case of a detachable type, the second operation is performed. The gums are cut again and a healing abutment is placed on the upper surface of the fixture already implanted in the alveolar bone. When the gingiva is completely healed, the impression is taken and the abutment is connected to the processed tooth. However, when the impression is taken, it is troublesome to remove the healing abutment, check the joint by radiography, and then conclude the healing abutment in order to conclude the impression coping.

Related prior art is the Republic of Korea Patent No. 10-0841218 (registration date June 19, 2008) 'an implant device'.

It is an object of the present invention to provide a method of making a dental prosthesis using a healing abutment and an impression cap that can be coupled thereto.

Another object of the present invention is to provide a method for producing a dental prosthesis by one detachment of a healing abutment.

The present invention is a fastening part having a polygonal fitting projection corresponding to the polygonal groove shape of the fixture implanted in the alveolar bone, and the lower body is formed integrally formed above the fastening part and formed in a shape that is wider in diameter toward the upper part; The upper body is formed integrally above the lower body and is formed in a tapered shape, the diameter of which is narrowed toward the upper portion, an incision surface formed in a symmetrical form on both sides of the upper body, and the upper body except the incision surface. A healing abutment including a concave groove formed on an outer circumferential surface of the upper body, and a fastening hole formed to penetrate the fastening portion in the upper body;

A body having a cylindrical or polygonal pillar shape, a coupling groove corresponding to an upper body shape of a healing abutment formed inside the body and coupled to the body, a polygonal plate protruding in a polygonal plate shape on the outer circumferential surface of the body, and In the dental prosthesis manufacturing method using an impression cap detachable by fitting to the healing abutment, including a cross-shaped groove formed in the cross shape on the top of the body,

A healing abutment fastening step of fastening a healing abutment selected from the healing abutment group having a predetermined height and diameter to the fixture;

An impression acquisition step of fitting an impression cap to the healing abutment fastened to the fixture and using the impression material to obtain an impression, but having the impression cap embedded in the obtained impression;

An oral model manufacturing step of manufacturing an oral model of a fixture level by using dimension information of the selected healing abutment and the obtained impression; And

It provides a dental prosthesis manufacturing method comprising a; dental prosthesis manufacturing step of manufacturing a dental prosthesis suitable for the oral model.

In the healing abutment fastening step, the impression cap may be inserted into the healing abutment, the impression cap may be used as a guide handle, and then the impression cap may be separated after the healing abutment is fastened.

The oral model manufacturing step is to insert a healing abutment model of the same standard as the healing abutment selected in the impression cap embedded in the impression material and the lab analog corresponding to the fixture to manufacture an oral model, to the manufactured oral model It is preferable to make the lab analog corresponding to the fixture to be embedded.

At this time, the lap analog and the healing abutment model are fitted to the impression cap in a state where the screw is fastened with screws, and then separated from the impression cap, and then the screw is removed to remove the healing abutment model and the lap analog. Can be separated.

The dental prosthesis manufacturing step may be such that the portion corresponding to the fastening portion and the lower body of the healing abutment of the dental restoration has the same shape as the healing abutment.

When the impression cap is difficult to be completely fastened to the healing abutment because the impression cap interferes with the adjacent teeth, it is preferable to cut a part of the impression cap to be completely fastened to the healing abutment.

The present invention by using a healing abutment and a removable impression cap fitted to it provides a method for obtaining the impression and manufacturing a dental prosthesis, thereby bringing the effect of minimizing the detachment of the healing abutment and the fixture.

Repeated desorption of healing abutments stimulates soft and bone tissue in progress, thereby reducing the pain of the patient by reducing the number of detachments of healing abutments.

In addition, since the impression cap is used to obtain the impression without detaching the healing abutment, the impression can be obtained more accurately when the impression is obtained by separating the healing abutment and tightening the impression coping. It has the effect of producing a dental prosthesis.

1 is a perspective view showing a healing abutment used in the present invention,

2 is a front view showing a healing abutment used in the present invention,

3 is a plan view showing a healing abutment used in the present invention,

4 is a perspective view of an impression cap used in the present invention,

5 is a bottom perspective view of the impression cap used in the present invention,

6 is a front view of the impression cap used in the present invention,

7 is a view showing a state in which the healing abutment and the impression cap is coupled according to the present invention;

8 is a view showing a coupling portion of the healing abutment and the impression cap according to the present invention;

9 is a flow chart illustrating a method of manufacturing a dental prosthesis using a healing abutment and an impression cap that can be fastened thereto according to an embodiment of the present invention.

Hereinafter, a method of manufacturing a dental prosthesis using a healing abutment according to an embodiment of the present invention and an impression cap capable of fastening thereto will be described in detail with reference to the accompanying drawings.

First, look at the healing abutment used in the present invention.

1 is a perspective view showing a healing abutment used in the present invention, Figure 2 is a front view showing a healing abutment used in the present invention, Figure 3 is a plan view showing a healing abutment used in the present invention. .

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

The healing abutment 100 according to the present invention includes a fastening part 110 having a polygonal fitting protrusion 112 corresponding to the polygonal groove shape of the fixture placed in the alveolar bone, and upwards of the fastening part 110. The lower body 120 is formed integrally and formed in a shape that widens toward the upper portion, and the upper body formed in a tapered shape that is formed integrally upwards of the lower body 120 and the diameter narrows toward the top ( 130, the incision surface 132 is formed on both sides of the upper body 130 in a symmetrical shape, and the concave groove 134 is formed on the outer peripheral surface of the upper body 130 except for the incision surface 132 and In addition, the upper body 130 includes a fastening hole 140 formed to penetrate the fastening part 110.

A polygonal groove is formed on the upper portion of the fixture, so that the coupling can be combined with the prosthesis coupled to the fixture with a certain direction.

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

The fastening part 110 of the healing abutment 100 is a part 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 coupled with the fixture in a predetermined direction. . In the illustrated embodiment, the fitting protrusion 112 has a shape having a hexagonal shape.

When the fastening portion 110 of the healing abutment 100 is fitted to the upper end of the fixture, the fitting protrusion is inserted into the polygonal groove, and the healing abutment 100 does not rotate in a state in which it is coupled with the direction.

The lower body 120 is a portion that determines the recovery form of the gingiva and soft tissue, it is preferable to have a shape that is wider toward the top.

The upper body 130 is provided with an incision surface 132 and a recessed groove 134.

Incision surface 132 is formed in a symmetrical form on both sides of the upper body (130). That is, the cutting surface 132 of the donor is formed in parallel with each other.

In addition, the incision surface 132 is preferably formed in parallel with the two surfaces of the fitting protrusion (112).

The incision surface 132 serves to prevent the impression cap from turning when combined with the impression cap. In addition, in some cases, an impression may be obtained without tightening an impression cap, and at this time, the impression material and the healing abutment are also prevented from rotating.

This is to allow the healing abutment 100 to be able to identify the directionality of the fixture recess through the cutting surface 132 in a state where the healing abutment 100 is coupled to the fixture.

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

When the incision surface 132 scans the oral environment of the patient using an oral scanner, the cutting surface 132 has an effect of identifying the orientation of the fixture without separating the healing abutment 100.

If the upper body 130 has a circular cross section without the incision surface 132, the orientation of the fixture can not be identified from the healing abutment.

In addition, the incision surface 132 also brings about the effect that the attachment and detachment of the impression cap to be described later.

The incision surface 132 has a curved portion 132a at the bottom. The curved portion 132a has an effect of reducing stimulation when the skin tissue in the oral cavity contacts the healing abutment 100.

This is because if the curved portion 132a is not provided, a sharp edge is formed at the lower end of the incision surface 132 to stimulate skin tissue in contact.

The height h1 of the upper body 130 is preferably in the range of 2.8 ~ 4.0mm. The upper body 130 is a portion that is coupled to the impression cap, if the height is less than the above range it is difficult to secure a firm coupling force with the impression cap, if the height exceeds the range is in contact with the antagonism may cause inconvenience to the patient There is.

The upper body 130 has a form in which the cross section becomes narrower toward the top, for smooth coupling with the impression cap to be coupled.

Taper angle of the upper body 130 is preferably in the range of 3 ~ 9 degrees.

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

In addition, the upper body 130 is provided with a concave groove 134, the concave groove 134 is formed only in the region excluding the incision surface (132). If the recessed groove is provided to the incision surface 132, the separation of the impression cap may not be smooth when the impression is taken.

In addition, the concave groove 134 also serves to generate a click sound when engaged with the impression cap. This will allow us to identify whether an acoustically correct association has been made.

The concave groove 134 is preferably formed at a height of 0.25 ~ 2.0 mm from the top of the upper body.

This is to ensure a proper binding force is outside the above range, the coupling or separation may not be smooth.

On the other hand, the height h2 of the lower body 120 is preferably in the range of 1 ~ 9mm.

The lower body 120 may use a different height depending on the type and size of the target tooth.

For example, the height of the lower body 120 is 3mm, 5mm, 7mm provided with three types of healing abutment, it can be selected to use the appropriate height according to the oral environment of the patient.

Next, look at with respect to the detachable impression cap fitted in the healing abutment used in the present invention.

Figure 4 is a perspective view of the impression cap used in the present invention, Figure 5 is a bottom perspective view of the impression cap used in the present invention, Figure 6 is a front view of the impression cap used in the present invention.

As shown, the impression cap 200 according to an embodiment of the present invention is a body 210 having a cylindrical or polygonal pillar shape, the healing abutment 100 is formed and coupled to the inside of the body 210 Coupling groove 220 corresponding to the shape of the upper body 130, the polygonal plate 230 protruding in the shape of a polygonal plate on the outer peripheral surface of the body 210, and formed in the cross shape on the upper end of the body 210 It includes a dove digit 240.

The coupling groove 220 has a coupling surface 224 corresponding to the incision surface 132 formed in the healing abutment, the outer peripheral surface of the body 210 corresponding to the coupling surface 224 is the And a flat surface 212 parallel to the mating surface 224.

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

The incision surface of the healing abutment is formed to coincide with the polygonal surface of the lower fastening portion of the healing abutment, to indicate the orientation of the fixture placed in the alveolar bone. Therefore, when the engaging surface 224 is fitted in a direction parallel to the incision surface, the flat surface 212 provided on the outer peripheral surface of the body 210 also coincides with the polygonal surface of the healing abutment fastening portion, consequently flat Face 212 will indicate the directionality of the fixture.

In addition, the coupling groove 220 has a coupling piece 222 protruding in a semicircular shape on the inner peripheral surface except the coupling surface 224.

Coupling piece 222 is a portion to be fitted into the concave groove (134 of FIG. 4) of the healing abutment to be described later, it is preferable to have a semi-circular cross section for smooth detachment.

On the other hand, the dovetail 240 formed on the top of the body 210 has a fragment portion 244 having a length corresponding to the polygonal plate 230, and a long fragment portion 242 having a longer length than the fragment portion 224. ).

In this case, the long piece portion 242 and the piece portion 244 are formed to be orthogonal to each other, the length portion of the piece portion or the long piece portion may be formed parallel to the coupling surface 224.

In the illustrated embodiment, the longitudinal direction of the fragment portion 244 is formed in parallel with the flat surface 212, but conversely, the longitudinal direction of the long piece 242 may be formed in parallel with the flat surface 212. As such, when the longitudinal direction of the long piece portion 242 or the piece portion 244 is formed parallel to the flat surface 212, the direction of the flat surface 212 in the direction of the long piece portion 242 or the piece portion 244 is adjusted. There is a discernible effect.

The dove stools 240, together with the polygonal plate 230, have the effect of increasing the coupling force between the impression material and the impression cap when taking the impression.

In addition, the ten-digit groove 240 facilitates the connection when taking the bridge impression. The occlusal table formed wide by the tens of digits 240 provides stability when a byte is applied to serve as an accurate byte table.

The impression cap according to the present invention is to have a small size of less than 1cm in height, if the impression cap 200 of the present invention is fastened to the healing abutment fastened in the patient's mouth, flattened by adjacent teeth or gums, etc. It may be difficult to identify the surface 212, in which case the direction of the flat surface 212 (in turn, the direction of the polygonal groove of the fixture) may be identified through the direction of the dove 140.

If the long piece portion 242 and the piece portion 244 are not formed in different lengths and are formed in the same length, two functions cannot be achieved because the long pieces 242 and the piece portions 244 are formed in the same length.

The impression cap 200 according to the present invention may be used as a verification jig for identifying the relative positions of adjacent teeth. In this case, after fastening the impression caps to the healing abutments of adjacent teeth, respectively, the verifiable jig can be manufactured by connecting the dove stools 240 with a resin or the like.

The impression cap 200 according to the present invention may use a synthetic resin material that can be cut by a cutter. When the height of the impression cap 200 is excessive depending on the oral environment of the patient is to be used by cutting the impression cap 200 with a cutter. For example, the cut between the dove-shape 240 and the polygonal plate 230 may be cut or cut between the polygonal plate 230.

Representative material from which the impression cap 200 may be manufactured is POM resin (polyacetal resin). Polyacetal is a milky white thermoplastic resin produced by polymerizing formaldehyde (CH 2 O) and trioxane (CH 2 O) 3, and is broadly divided into two types: homopolymer and high polymer. Polyacetal has the closest metal properties among engineering plastics because it has high crystallinity, excellent mechanical properties such as bending strength, and excellent dimensional stability, fatigue resistance, and abrasion resistance. to be.

In addition, the impression cap according to the present invention may be provided with a screw guide hole 250 penetrating through the ten-digit groove to the coupling groove.

This is to enable the impression cap 200 to be used as a handle guide when fastening the healing abutment to the fixture.

Since the healing abutment is small in size, it is not easy to fasten the healing abutment to the fixture. The healing abutment was positioned on the fixture using a tool such as Pinsen, and then the healing abutment was fixed to the fixture using a fastening screw.

After inserting the fastening screw into the healing abutment, insert it into the impression cap 200, hold the impression cap 200 by hand and position it in the fixture, and then insert the screw through the screw guide hole to heal a By allowing the fastening screw of the butt to be fastened to the fixture, the healing abutment fastening can be made simpler.

7 is a view showing a state in which the healing abutment and the impression cap is coupled according to the present invention, Figure 8 is a view showing a coupling portion of the healing abutment and the impression cap according to the present invention.

When the healing abutment 100 is coupled to the fixture and the impression cap 200 is pushed onto the healing abutment 200, the upper portion of the healing abutment 100 is inserted into the coupling groove 220. As the body 130 is inserted, the coupling piece 222 of the impression cap 200 is inserted into the concave groove 134 of the upper body 130 of the healing abutment 100, so that the impression cap 200 is healed. It is firmly coupled to the butt 200.

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

Thus, when the impression cap is acquired using the impression material in the state in which the impression cap 200 is fitted to the healing abutment 100, the impression cap 200 is separated while being embedded in the impression material.

Therefore, the impression cap 200 remains in the impression taking body, and using the remaining impression cap 200, information such as the orientation and height of the fixture can be obtained.

9 is a flowchart illustrating a method of manufacturing a dental prosthesis using a healing abutment and an impression cap capable of fastening thereto according to an embodiment of the present invention.

As shown, a method for manufacturing a dental prosthesis according to the present invention is a healing abutment fastening step (S100) for fastening a healing abutment selected from a healing abutment group having a predetermined height and diameter to the fixture, and the fixture Impression acquisition step (S200) to fit the impression cap to the healing abutment fastened to the impression cap using the impression material, but the impression cap is buried in the obtained impression, and the selected healing abutment It includes the oral model manufacturing step (S300) for producing an oral model of the fixture level using the obtained impression and the dimension information, and a dental prosthesis manufacturing step (S400) for manufacturing a dental prosthesis suitable for the oral model.

Conventionally, after unwinding the healing abutment, the impression is obtained by combining the scan pins with the fixture, and then taking the impression, removing the scan pins, and then tightening the healing abutment. Was manufacturing.

However, the frequent detachment of the healing abutment has a bad effect in the healing process, and had a problem of repeating the cumbersome detachment work.

The present invention minimizes the detachment of the healing abutment and provides a method for producing a dental prosthesis.

The healing abutments described above are prepared in various standards, and the healing abutments selected from the healing abutments are selected for the patient's oral environment.

The healing abutment is provided with a group of various diameters and various heights in advance, selected as appropriate, and describes the specifications of the selected healing abutment.

Depending on the model, the diameter and height of the healing abutment will be different, and the information about the specification of the healing abutment will be transmitted along with the impressions obtained. You will build a model.

In the healing abutment fastening step (S100), after inserting the impression cap into the healing abutment, using the impression cap as a guide handle, and then tightening the healing abutment and then removing the impression cap. Can be used.

Healing abutment used in the present invention is formed to be fastened with a directional to the fixture, the size of the healing abutment is small, it is not easy to tighten the screw after the healing abutment by hand to fasten the screw into the fixture .

Since the present invention has a structure capable of fastening the healing abutment in a state where the impression cap is fitted, the impression cap can be used as a guide handle. In other words, after inserting the impression cap into the healing abutment, use the impression cap as a handle to insert the healing abutment into the fixture, and then tighten the screw to fix the healing abutment to the fixture, and then remove the impression cap. Can be used.

In the pulling acquisition step (S200), when it is difficult to completely fasten the healing cap to the healing abutment because the impression cap interferes with an adjacent tooth, the impression cap may be cut off to be completely fastened to the healing abutment. . At this time, the cutting may cut a part of the tensave.

The oral model manufacturing step (S300) is prepared by inserting a healing abutment model of the same standard as the healing abutment selected in the impression cap buried in the impression material, and a lab analog corresponding to the fixture to manufacture the oral model, The oral model in which the lab analog corresponding to the fixture is embedded in the oral model is manufactured. In other words, it is possible to obtain a fixture level oral model.

At this time, the lap analog and the healing abutment model are fitted to the impression cap in a state where the screw is fastened with screws, and then separated from the impression cap, and then the screw is removed to remove the healing abutment model and the lap analog. The oral model can be prepared in a separate manner.

The dental prosthesis manufacturing step (S400) is preferably such that the portion corresponding to the fastening portion and the lower body of the healing abutment of the dental restoration has the same shape as the healing abutment.

Since healing is performed according to the shape of the healing abutment, the lower body shape, which is the lower shape of the dental prosthesis, corresponds to the healing abutment shape.

As described above, the dental prosthesis manufacturing method using the healing abutment according to the present invention and the impression cap that can be fastened thereto, the impression cap can be obtained without pulling the healing abutment.

Therefore, the number of detachable detachments of healing abutments can be reduced, thereby helping to heal the patient and bringing the effect of improving the convenience of the doctor's treatment.

Claims

A fastening part having a polygonal fitting protrusion corresponding to the polygonal groove shape of the fixture implanted in the alveolar bone, a lower body integrally formed above the fastening part and formed to have a diameter widening upwardly, and the lower part; The upper body is formed integrally upward of the body and formed in a tapered shape that narrows in diameter toward the upper portion, an incision surface formed symmetrically on both sides of the upper body, and an outer peripheral surface of the upper body except the incision surface. A healing abutment including a concave groove formed and a fastening hole formed to penetrate the fastening portion in the upper body;

A body having a cylindrical or polygonal pillar shape, a coupling groove corresponding to an upper body shape of a healing abutment formed inside the body and coupled to the body, a polygonal plate protruding in a polygonal plate shape on the outer circumferential surface of the body, and In the dental prosthesis manufacturing method using an impression cap detachable by fitting to the healing abutment, including a cross-shaped groove formed in the cross shape on the top of the body,

A healing abutment fastening step of fastening a healing abutment selected from the healing abutment group having a predetermined height and diameter to the fixture;

An impression acquisition step of fitting an impression cap to the healing abutment fastened to the fixture and using the impression material to obtain an impression, but having the impression cap embedded in the obtained impression;

An oral model manufacturing step of manufacturing an oral model of a fixture level by using dimension information of the selected healing abutment and the obtained impression; And

Dental prosthesis manufacturing step of manufacturing a dental prosthesis suitable for the oral model.
The method of claim 1,

The healing abutment fastening step

Inserting the impression cap to the healing abutment, using the impression cap as a guide handle, after tightening the healing abutment, characterized in that for removing the impression cap.
The method of claim 1,

The oral model manufacturing step

A lab analogue corresponding to the fixture is manufactured by inserting a healing abutment model of the same standard as the healing abutment selected in the impression cap embedded in the impression material and a lab analog corresponding to the fixture, and then manufacturing the oral model. Dental prosthesis manufacturing method characterized in that the buried state.
The method of claim 3, wherein

The lap analog and the healing abutment model are fitted to the impression cap in a fastened state with a screw, and after being separated from the impression cap, separating the healing abutment model and the lap analog by removing the screw. Dental prosthesis manufacturing method characterized in that.
The method of claim 1,

The dental prosthesis manufacturing step

And a portion corresponding to the fastening portion and the lower body of the healing abutment of the dental restoration to have the same shape as the healing abutment.
The method of claim 1,

The raise acquisition stage

If the impression cap interferes with an adjacent tooth and it is difficult to completely tighten the healing abutment,

Cutting a portion of the impression cap, the dental prosthesis manufacturing method characterized in that it is completely fastened to the healing abutment.