WO2015012431A1

WO2015012431A1 - Impression cap coupleable to healing abutment

Info

Publication number: WO2015012431A1
Application number: PCT/KR2013/008097
Authority: WO
Inventors: 김정한; 황준호; 박현위
Original assignee: 라파바이오 주식회사
Priority date: 2013-07-23
Filing date: 2013-09-06
Publication date: 2015-01-29
Also published as: KR101363062B1

Abstract

The present invention provides an impression cap comprising: a body having a cylindrical shape; a coupling groove formed inside the body in a shape corresponding to that of an upper body of a healing abutment to be coupled; polygonal plates protrudingly formed on the outer circumferential surface of the body in the form of a polygonal plate; and a cross rib formed at the upper end of the body in the shape of a cross.

Description

Impression cap fits into healing abutments

The present invention relates to an impression cap used to obtain an impression of the oral environment during the treatment of dental implants, and more particularly, to an impression cap that can minimize detachment of the healing abutment by enabling the fastening with the healing abutment. It is about.

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 an impression cap that can be coupled to a healing abutment so that the impression can be taken without separating the healing abutment from the fixture.

Another object of the present invention is to provide an impression cap that can be utilized as a verification jig.

The present invention is a cylindrical body having a cylindrical or polygonal shape; A coupling groove formed in the body and corresponding to an upper body shape of the healing abutment to be coupled; A polygonal plate protruding in a polygonal plate shape on an outer circumferential surface of the body; It provides an impression cap comprising a; and a dove shaped to form a cross on the top of the body.

The coupling groove has a coupling surface corresponding to the incision surface formed in the healing abutment, the outer peripheral surface of the body corresponding to the coupling surface is more preferably provided with a flat surface parallel to the coupling surface.

The coupling groove has a coupling piece protruding in a semicircular shape on the inner peripheral surface except the incision surface.

The ten-digit groove includes a fragment portion having a length corresponding to the polygonal plate and a long piece portion having a length longer than the fragment portion, wherein the long piece portion and the fragment portion may be formed to be orthogonal to each other,

The longitudinal direction of the fragment portion or the long piece may be formed parallel to the incision surface.

The impression cap may be formed of a synthetic resin material that can be cut by a cutter to easily lower the height when height adjustment is required.

It may be provided with a screw guide hole penetrating through the dove saber to the coupling groove.

The impression cap according to the present invention is fastened to the healing abutment, so that the impression can be obtained, 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 is taken using the impression cap without attaching or detaching the healing abutment, the effect of obtaining a more accurate impression when the impression is obtained by separating the healing abutment and then tightening the impression coping is conventionally obtained. .

1 is a perspective view of an impression cap that can be fastened to a healing abutment according to an embodiment of the present invention;

Figure 2 is a bottom perspective view of the impression cap that can be fastened to the healing abutment according to an embodiment of the present invention,

Figure 3 is a front view of the impression cap that can be fastened to the healing abutment according to an embodiment of the present invention,

4 is a view showing a state in which the impression cap coupled to the healing abutment coupled to the healing abutment according to an embodiment of the present invention,

Figure 5 is a view showing the coupling portion of the healing abutment impression cap that can be fastened to the healing abutment according to an embodiment of the present invention.

EMBODIMENT OF THE INVENTION Hereinafter, the impression cap which can be fastened to the healing abutment which can acquire an impression according to the Example of this invention is demonstrated in detail with reference to drawings.

1 is a perspective view of an impression cap which can be fastened to a healing abutment according to an embodiment of the present invention, and FIG. 2 is a bottom perspective view of the impression cap that can be fastened to a healing abutment according to an embodiment of the present invention. 3 is a front view of an impression cap which can be fastened to a healing abutment according to an embodiment of 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 is formed and coupled inside the body 210 (Fig. 4 Coupling groove 220 corresponding to the shape of the upper body (to be described later in Figure 4) of 130, a polygonal plate 230 protruding in the form of a polygonal plate on the outer peripheral surface of the body 210 and the body of the 210 It includes a dove saber 240 formed in a cross shape on the top.

The coupling groove 220 has a coupling surface 224 corresponding to the incision surface (132 of FIG. 4) formed in the healing abutment, and of the body 210 corresponding to the coupling surface 224. The outer circumferential surface has a flat surface 212 parallel to the engagement 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.

4 is a view illustrating a state in which an impression cap that may be fastened to a healing abutment according to an embodiment of the present invention is coupled to a healing abutment, and FIG. 5 is a fastening to a healing abutment according to an embodiment of the present invention. This possible impression cap is a view showing the engagement portion of the healing abutment.

First, the healing abutment 100 to which the impression cap 200 according to the present invention is coupled will be described.

The healing abutment 100 is integrally formed with 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 in a shape that is wider toward the upper portion, and the upper body 130 is formed integrally to the upper portion of the lower body 120, the taper shape is narrowed toward the upper portion, and Incision surface 132 is formed on both sides of the upper body 130 in a symmetrical shape, concave grooves 134 formed on the outer peripheral surface of the upper body 130 except the incision surface 132, and the upper body It includes a fastening hole 140 formed to penetrate the fastening portion 110 in 130.

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.

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.

As described above, the impression cap according to the present invention has the effect of being able to use the method of the oral scan or the impression acquisition method, without separating 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 body having a cylindrical or polygonal pillar shape;

A coupling groove formed in the body and corresponding to an upper body shape of the healing abutment to be coupled;

A polygonal plate protruding in a polygonal plate shape on an outer circumferential surface of the body; And

Impression cap comprising a; dove formed in a cross shape on the top of the body.
The method of claim 1,

And the coupling groove has a coupling surface corresponding to a cut surface formed in the healing abutment.
The method of claim 2,

The outer circumferential surface of the body corresponding to the engagement surface has an impression cap having a flat surface parallel to the engagement surface
The method of claim 1,

The coupling groove is an impression cap characterized in that it comprises a coupling piece protruding in a semicircular shape on the inner peripheral surface except the incision surface.
The method of claim 1,

The ten-digit cave

A fragment having a length corresponding to the polygonal plate and a longer portion having a length longer than that of the fragment,

And the long piece and the piece are formed to be orthogonal to each other.
The method of claim 2,

The ten-digit groove includes a fragment portion having a length corresponding to the polygonal plate, and a long piece portion having a length longer than the fragment portion,

The lengthwise direction of the fragment portion or the elongate portion is parallel to the incision surface.
The method of claim 1,

The impression cap is an impression cap, characterized in that the synthetic resin material that can be cut by a cutter.
The method of claim 1,

The impression cap

Impression cap characterized in that it comprises a screw guide hole penetrating through the dove saber to the coupling groove.