KR102102218B1 - Abutment for implant - Google Patents

Abstract

The present invention includes a fixture coupling portion inserted into the inside of the fixture placed in the alveolar bone, a margin portion formed to extend above the fixture coupling portion, and a crown portion coupled to the outer circumferential surface and formed to extend above the margin portion And the margin portion includes a margin extending upward from the upper end of the fixture coupling portion to form a pitch with a constant pitch along the outer circumferential surface of the margin portion, and the outer circumferential surface of the crown coupling portion is made of polygonal abutment. It is about.

Description

ABUTMENT FOR IMPLANT

The present invention relates to an abutment for implants, and more specifically, to form a spiral margin on the outer circumferential surface of the abutment for crown mounting, the abutment to the fixture. By simply cutting and removing the helical margin exposed on the upper surface of the gingiva in the combined state, the procedure to ensure that the top of the margin coincides with the surface of the gum can be made accurately and easily, and the implant procedure It relates to an abutment for implants that can improve the aesthetics of the gums later.

In general, dental implants (dental implants) are biocompatible with a jawbone that has increased in volume so that it can be sufficiently wrapped through additional surgery such as bone grafts or bone necrosis on the jaw bone of the tooth or the site where the tooth is missing. This is a dental treatment technique that restores the function of natural teeth by planting the implant body.

Dental implants were performed in ancient times, and artificial teeth made of gold and ivory were used in the 16th and 17th centuries. In the early 20th century, metal implants made of gold, silver, lead, iridium, iron, and cobalt alloys were used. Was developed.

Since the 1940s, subperiosteal implants and titanium blade implants have been developed and popularized, but have a short lifespan and a low success rate. Later, in Toronto, Canada in 1982, after a 15-year study of bone-coated implants by Brenemark of Sweden, the success rate exceeded 90% and became popular worldwide.

Implants such as these originally refer to substitutes that restore the tissues of the human body when they are lost, but dentists refer to artificial tooth implants.

In other words, the implant is made of titanium, which is made of titanium, which is not rejected by the human body, so that it can replace the roots of the lost natural teeth. This is a state-of-the-art procedure that restores the original function of natural teeth by fixing the teeth.

The dental implant is composed of a fixture placed on the alveolar bone, an abutment fastened to the fixture, and an actual tooth-shaped crown mounted on the abutment.

In addition, a cover screw and a healing cap for closing a screw hole formed inside the upper inside of the fixture and a healing abutment called a healing abutment, a fixture and an abutment. There are various accessory components, such as an abutment screw that connects the ament.

Here, the fixture (fixture) corresponding to the root is also referred to as artificial roots, implants or fixtures in the art, the abutment is also called abutment or abutment, the crown corresponding to the teeth is artificial teeth, It is also called crown and prosthesis.

Such an implant includes a screw-type implant and a cylindrical implant according to the shape of the implant.

Threaded implants are currently preferred as they have a thread on the implant fixture, which increases the initial fixation force, has a large contact area with the bone, which is advantageous for the stability of the implant and the distribution of occlusal loads.

Cylindrical implants also obtain stability from the surface of the implant fixture and maintenance as a result of structural differences in jaw bone and implant diameter.

On the other hand, the implants are implanted inside the jaw bone according to the implantation position, and implants in the mucosa that are not currently used in the form of obtaining maintenance in the form of buttons in the soft tissue, and fixtures and abutments suitable for the surface of the jawbone under the periosteum It is classified into a subperiosteal implant consisting of a treatment, a bone-penetrating implant penetrating the bone, and an in-canal implant fixed through the root canal after root canal treatment (neural treatment) of natural teeth.

In addition, depending on the implantation time, there are an immediate extraction method for immediate extraction, a delayed immediate implantation method for 6 to 10 weeks after extraction, and a late implantation method for 3 to 6 months after extraction.

In addition, according to the surgical method, there is a one-time surgical method of simultaneously placing the implant root part, that is, the fixture and the upper tooth area, that is, the abutment, and after planting the implant first, wait for the abutment to adhere to the bone and then abutment. There are two surgeries to place the.

The prior art of dental implants having various types and treatment methods as described above is' Tooth Implant System 'of Korean Patent Office Registration No. 10-0419738, and' Healing of Korean Patent Office Registration Patent Publication No. 10-0677870. The abutment and dental implant having the same, and the Korea Patent Office Registration Patent Publication No. 10-0879777 'flapless or mini-flap implants for the implant' has been disclosed.

On the other hand, a general procedure of the most typical screw-type implant will be briefly examined.

First, after partial anesthesia using an anesthesia syringe on the area of the gum where the fixture is to be placed, the mass is incised about 3 to 5 mm long using a mass.

Then, after opening the incised gum about the diameter of the fixture to form an entrance, confirm the position where the fixture will be placed and drill to make a screw hole in the alveolar bone where the fixture will be placed.

Subsequently, after drilling a number of times until the size fits the fixture diameter, the screw hole is screwed into the fixture and placed in the alveolar bone. At this time, the upper surface of the fixture is parallel to the surface of the alveolar bone.

Here, according to the judgment of the operator, when performing the procedure with a two-surgical method in which the gum is completely covered and sutured so that the fixture is not visible, the cover screw is fastened completely in the screw hole of the implant, and the upper surface of the cover screw is fixed. Make it parallel to the flat part of the surface and the implant.

Then, the first step of the surgery is completed by sealing the entrance of the incised gum so that the fixture and cover screw are embedded in the gum.

After the first stage surgery, the healing period for bone attachment between the fixture and the alveolar bone requires at least 2 to 3 months for the lower jaw and at least 4 to 6 months for the upper jaw.

If the alveolar bone at the implant site is weak, it takes 1 to 2 months, and when the bone is transplanted, a healing period of 6 to 9 months is usually required.

Here again, if it is determined that healing has been sufficiently achieved after the fixture is placed, a second stage surgery is performed.

Stage 2 surgery is usually performed by local anesthesia. After anesthesia, the gums are incised, the gums are opened to show the fixture, and then a satisfactory bone adhesion is made. After removing the cover screw, a healing cap is used for healing the gums. cap) or a healing abutment and seal the gums.

When the gum is healed, the healing cap or healing abutment is removed, the abutment for crown mounting is combined, and then the dental model is created and the crown is drilled, and the crown is finally attached to the abutment to complete the implant procedure. Is done.

In the procedure of the conventional screw-type implant as described above, when combining the abutment for crown mounting, a procedure is performed such that the top of the margin formed on the outer circumferential surface of the abutment coincides with the surface of the gum.

Here, as the prior art of the implant for abutment, the 'Abutment for implants' of Korean Patent Office Registration No. 10-0970746 and the Korean patent office registration patent publication No. 10-0898726 Abutment structure 'and' Abutment for implants' of Korean Patent Office Publication No. 10-2011-0096612 have been disclosed.

Here again, the configuration of the conventional abutment will be described first in order to explain the procedure of making the upper end of the abutment coincide with the surface of the gum.

As shown in FIG. 1, the conventional abutment 100 coupled to the upper portion of the fixture 200 placed in the implantation hole 410 of the alveolar bone 400 is formed such that the diameter of the outer circumferential surface becomes smaller toward the lower side. The fixture coupling portion 110 inserted into the insertion hole 210 of the fixture 200 and the diameter of the outer circumferential surface extending from the upper end of the fixture coupling portion 110 toward the upper side are formed so that the gum 420 comes into contact It is composed of a crown coupling part 120 that is extended from the upper end of the margin part 130 and the margin part 130 so that the diameter of the outer circumferential surface becomes smaller toward the upper side and the crown 300 is mounted.

In the conventional abutment 100 configured as described above, when the fixture insertion portion 110 of the abutment 100 is inserted into the insertion hole 210 of the fixture 200, the healed gum 420 portion is margined It is in contact with the outer peripheral surface of the portion 130.

The area of the healed gum 420 is made of the same shape as the outer circumferential surface of the healing cap or the healing abutment, and is usually healed in the shape of a circular hole to make contact with the circumference of the margin 130 of the abutment 100 will be.

Here, if the top of the margin portion 130 of the abutment 100 and the surface of the gum 420 do not match, the margin portion 130 of the abutment 100 located between the gum 420 and the crown 300 ) Is exposed, the external aesthetics are deteriorated, and food is caught in the exposed space, causing periodontal disease, and thus, a procedure of matching the top surface of the margin part 130 and the surface of the gum 420 is performed.

Here again, the thickness of the gums 420 varies from person to person, but in the case of patients with gum regression, it is 1 mm or less, and is generally 2 to 3 mm thick, and some people have gums 420 up to 7 mm thick. In addition, the thickness of the gum 420 may vary depending on the area of the gum 420.

Thus, as the thickness of the gum 420 is not constant, the margin part 130 of the abutment 100 to match the top surface of the margin part 130 of the abutment 100 and the gum 420 To proceed with the procedure for cutting the.

The procedure of cutting the margin portion 130 of the abutment 100 is first, after confirming that the operator is high and low in each portion of the gum 420 that radially contacts the outer circumferential surface of the margin portion 130, and then the margin portion While cutting the top or inclined outer circumferential surface of (130), it will be treated to match the surface of the high and low parts of each gum (420).

However, the procedure of cutting the margin part 130 of the conventional abutment 100 has the inconvenience of repeatedly cutting the upper and outer circumferential surfaces of the margin part 130 according to the height of the gums, When the cutting surface is excessively cut in the repeated cutting process, there is a problem that the abutment must be replaced and the procedure again.

KR Patent Registration No. 10-0970746 (2010.07.09) Abutment for implants. KR Registered Patent Publication No. 10-0898726 (2009.05.14) Customized abutment structure of the implant. KR Publication No. 10-2011-0096612 (2011.08.31) Abutment for implants. KR Patent Registration No. 10-0419738 (2004.02.10) Dental implant system. KR Registered Patent Publication No. 10-0677870 (Jan. 26, 2007) Healing abutment and dental implant with the same. KR Registered Patent Publication No. 10-0879777 (2009.01.14) Implant for flapless or mini-flap procedure.

The present invention was created to solve the problem of the procedure of cutting the margin portion of the conventional abutment to match the surface of the gum and the top of the abutment margin, forming a spiral margin on the outer circumferential surface of the abutment Thus, by simply cutting and removing the helical margin exposed on the upper surface of the gum in the state where the abutment is coupled to the fixture, the procedure to ensure that the top of the margin coincides with the surface of the gum can be made accurately and easily. The aim is to provide a new type of abutment for implants, which enables to improve the aesthetics of the gums after the implant procedure.

In addition, the present invention in the conventional abutment consisting of a flat surface of the crown coupling portion of the abutment to which the crown is coupled, when the crown is coupled to the coupling portion of the abutment, the crown coupling portion of the abutment It is an object to solve the problem of preventing the combined crown from rotating.

In addition, in the present invention, when an abutment is combined with a fixture, a stress caused by a user's authoring activity is concentrated on a part of the fixture coupling portion of the abutment, so that the abutment is fractured. This is to solve the problem.

In order to solve the above-described problem, the present invention is formed to be extended to the upper side of the margin portion and the margin portion formed to extend above the fixture coupling portion, the fixture coupling portion inserted into the inside of the fixture placed in the alveolar bone, and to the outer circumferential surface. Includes a crown coupling portion to which the crown is coupled, the margin portion includes a margin extending upward from the upper end of the fixture coupling portion to form a constant pitch along the outer circumferential surface of the margin portion, and the outer circumferential surface of the crown coupling portion is made of polygon It is a solution to the problem to provide an abutment for implants, characterized in that.

In addition, the present invention is to solve the problem to provide an abutment for implants, characterized in that the margin is formed so that the diameter of the outer circumferential surface becomes smaller toward the upper side.

In addition, an object of the present invention is to provide an implant abutment, characterized in that the bottom surface of the margin is flat.

In addition, an object of the present invention is to provide an implant abutment, characterized in that the lower surface of the margin is provided to be parallel to the upper surface of the fixture.

In addition, the pitch is 0.5 to 1 mm to provide an abutment for implants, characterized in that as a solution to the problem.

The present invention forms a spiral margin on the outer circumferential surface of the abutment, so that the upper end of the gum is formed by simply cutting and removing the helical margin exposed on the upper surface of the gum while the abutment is coupled to the fixture. The procedure to be consistent with the surface can be done accurately and conveniently.

In addition, the present invention can prevent the combined crown of the abutment from rotating by forming a polygonal outer circumferential surface of the crown coupling portion.

In addition, the present invention becomes smaller as the cross section of the fixture coupling portion of the abutment goes downward.

1 shows a conventional implant abutment.
2 is a perspective view of an abutment for implants according to an embodiment of the present invention.
3 is a cross-sectional view of an abutment for implants according to an embodiment of the present invention.
4 is a cross-sectional view showing a state in which an abutment for implants according to an embodiment of the present invention is coupled to a fixture placed in an alveolar bone.
5 is a cross-sectional view showing various margins of an abutment for implants according to an embodiment of the present invention.

Prior to the detailed description of the technical idea of the implant abutment of the present invention, the present invention is capable of various changes and may have various embodiments, and specific embodiments are illustrated in the drawings and detailed in the detailed description I want to explain.

However, it is not intended to be limited to the specific embodiments of the present invention, it should be understood to include all modifications, equivalents, and substitutes included in the spirit and scope of the present invention.

For reference, terms such as first, second, A, B, etc. may be used to describe various components, but the components should not be limited by the terms.

The terms are used only for the purpose of distinguishing one component from other components.

For example, without departing from the scope of the present invention, the first component may be referred to as the second component, and similarly, the second component may also be referred to as the first component, and 'and / or'. The term is meant to include a combination of a plurality of related described items or any one of a plurality of related described items.

When an element is said to be 'connected' or 'connected' to another component, it is understood that other components may be directly connected to or connected to the other component, but other components may exist in the middle. It should be. On the other hand, when a component is said to be 'directly connected' or 'directly connected' to another component, it should be understood that no other component exists in the middle.

Terms used in the present application are only used to describe specific embodiments, and are not intended to limit the present invention.

Singular expressions include plural expressions unless the context clearly indicates otherwise.

In this application, terms such as 'include' or 'have' are intended to indicate that a feature, number, step, operation, component, part, or combination thereof described in the specification exists, and that one or more other features are present. It should be understood that the existence or addition possibilities of fields or numbers, steps, operations, components, parts or combinations thereof are not excluded in advance.

Unless otherwise defined, all terms used herein, including technical or scientific terms, have the same meaning as commonly understood by a person skilled in the art to which the present invention pertains.

Terms identical to those defined in a commonly used dictionary should be interpreted as having meanings consistent with meanings related to contexts, and should not be interpreted as ideal or excessively formal meanings unless explicitly defined in the present application. Does not.

Hereinafter, an abutment for implants according to a preferred embodiment of the present invention will be described in detail based on the accompanying drawings,

In the detailed description, the same name or the same reference numeral is used for a component that performs the same function.

On the other hand, in each drawing and detailed description, the illustration and reference to the construction and operation that can be easily recognized by workers in the field from a general implant abutment are simplified or omitted.

Particularly, in the drawings and detailed description of the drawings, detailed descriptions and illustrations of elements that are not directly related to the technical features of the present invention are omitted, and only the technical configurations related to the present invention are briefly shown or Explained.

In addition, in the drawing, there is a part in which the size ratio between elements is expressed somewhat differently, or there is a part in which the sizes between parts that are combined with each other are different, but the difference in expression shown in the drawings is easy for those skilled in the field. Since it is understandable parts, a separate description is omitted.

Hereinafter, a preferred embodiment of the abutment for implants according to the present invention will be described in detail with the accompanying drawings.

Figure 2 is a perspective view of an abutment for implants according to a preferred embodiment of the present invention, Figure 3 is a cross-sectional view of an abutment for implants according to a preferred embodiment of the present invention, Figure 4 is a preferred embodiment of the present invention It is a cross-sectional view showing a state in which the abutment for implantation is combined with a fixture placed in the alveolar bone.

2 to 4, the abutment for implants according to an embodiment of the present invention extends upwards of the fixture coupling portion 14 and the fixture coupling portion 14 inserted into the fixture placed in the alveolar bone. It is formed so as to extend to the upper side of the margin portion 13 and the margin portion 13, and includes a crown coupling portion 12 with a crown coupled to the outer circumferential surface, wherein the margin portion 13 is the fixture coupling portion (14) includes a plurality of margins extending upward from the top of the margin portion 13 along the outer circumferential surface of the margin portion 13 and protrudingly formed, and the crown coupling portion 12 has a crown fixing portion whose outer circumferential surface is made of polygons. (11).

The crown fixing portion 11 may be provided in a rectangular parallelepiped shape, and is illustrated as shown in the drawings, but may be implemented by variously modifying the shape of the cross section of the crown fixing portion 11 according to the user's needs. It is sufficient if the cross section of the upper surface of the top portion 11 is provided only with a polygon so that the crown 30 fixed to the crown fixing portion 11 is fixed so as not to perform relative motion with the crown fixing portion 11, which is the present invention. It does not limit the scope of rights.

The fixture engaging portion 14 is fixed to the inner surface of the fixture 20 in an interference-fitting manner, and includes a surface contact portion 141 that makes surface contact and a screw thread corresponding to a female screw provided inside the fixture 20. A screw portion 143 for fixing the abutment to the fixture 20 may be included.

In particular, the surface contact portion 141 of the fixture coupling portion 14 may be provided to be inclined to decrease in diameter toward the lower portion.

This is, when the surface contact portion 141 of the fixture coupling portion 14 is provided not to be inclined like a conventional abutment, the masticatory force generated when a patient chews food after the implant treatment is provided with the surface contact portion 141. There was a problem in that the stress concentration occurred at the edge of the end of the inner upper surface of the fixture 20 and the abutment was fractured, but the surface of the fixture coupling portion 14 of the embodiment As the contact portion 141 is provided with a smaller diameter toward the lower portion, and when the inner surface of the fixture 20 is combined with the interference fitting method, such a stress concentration phenomenon does not occur, and the abutment There is an effect that can prevent the fracture (fracture).

On the other hand, a plurality of margins formed in the margin portion 13 of the embodiment may be provided such that the diameter of the outer circumferential surface becomes smaller toward the upper side from the upper end of the fixture coupling portion 14, the diameter of the upper circumferential surface of the crown coupling portion 12 It may be provided the same as the diameter of the lower end, the diameter of the lower end of the outer peripheral surface may be provided larger than the diameter of the upper end of the fixture coupling portion (14).

Due to this, the lower end of the crown 30 can be located on the inclined surfaces of the plurality of margins formed in the margin portion 13, and thus an empty space is formed between the margin portion 13 and the crown 30 to generate food or drink. It is effective to prevent saliva from penetrating into the interior of the crown 30.

Furthermore, since a plurality of margins are formed in the margin portion 13, the crown 30 can be mounted using a desired margin according to the state of the patient's gums, thereby reducing the effort of a dentist performing an implant procedure. exist.

On the other hand, in the case of the conventional abutment, as described above, since only one margin portion is provided, the dentist removes the margin itself when the implant is placed on the gum of the actual patient, so that the crown is mounted without the margin portion. Due to this, there was a problem that food, etc. penetrated into the interior of the crown and corroded after the implant procedure.

Therefore, it can be considered that the abutment of the present invention has a technical feature in that it can solve this problem.

In the abutment 10 for an implant according to a preferred embodiment of the present invention, the length of the margin portion 13 is preferably 2 mm to 7 mm.

In addition, it is preferable that the pitch P of the plurality of margins formed in the margin portion 13 is 0.5 mm to 1 mm.

This takes into account that the height of the gum 42 of a general person is 2 mm to 3 mm, and the length of the margin 13 is 2 mm to facilitate the cutting process by allowing the gum 42 to contact the margin 13 as much as possible. Most preferably, it is 7 mm.

Hereinafter, a description will be given in detail with the process of coupling the abutment 10 for an implant of the present invention having the above-described configuration features to the fixture 20.

The abutment 10 for implants of the present invention is coupled to the upper portion of the fixture 20 that is placed in the alveolar bone 40 in a region having a tooth defect.

The abutment 10 of the present invention is inserted into the insertion hole 21 formed inside the upper portion of the fixture 20, and the gum 42 healed in a circular hole shape by a healing abutment (not shown) The inner circumferential surface of the is divided into a crown portion (12) to which the margin portion (13) and the artificial tooth crown (30) are coupled.

It is formed in the direction of the central axis of the abutment 10, and is provided with a screw portion 143 for fixedly coupling the abutment 10 to the fixture 20, formed inside the fixture 20 and screwed portion 143 ) Is coupled to the female screw portion having a thread corresponding to.

On the other hand, the upper portion of the fixture engaging portion 14, extending upward from the upper end of the fixture engaging portion 14 is formed integrally with the fixture engaging portion 14, the inner peripheral surface of the gum 42 on the outer circumferential contact margin A portion 13 is formed.

Here, the gum 42 in contact with the outer circumferential surface of the margin 13 will be described.

The gum 42 positioned around the upper surface of the fixture 20 is cut to place the fixture 20 in the alveolar bone 40 during the implant procedure.

Then, when the fixture 40 is placed on the alveolar bone 40, and a healing cap or a healing abutment (not shown) is coupled to the fixture 40, the incised portion of the gum 42 is healed cap or healing abutment. It is sealed after being in close contact with the outer circumferential surface of the treatment.

The incised portion of the gum 42 is cured while in contact with the outer circumferential surface of the healing cap or healing abutment during the period for bone adhesion of the fixture 20.

The area of the healed gum 42 is healed in a circular hole shape so as to come into contact with the circumference of the margin 13 of the abutment 10 for mounting the crown 30.

After combining the abutment 10 for an implant according to a preferred embodiment of the present invention as described above to the fixture 20 placed in the alveolar bone 40, the margin portion exposed to the upper side of the gum 42 surface ( By simply cutting and removing the margin of 13), it is possible to easily perform a procedure in which the upper end of the margin 13 and the surface of the gum 42 are matched.

Here, the procedure of making the upper end of the margin portion 13 of the abutment 10 according to the present invention coincide with the surface of the gum 42 will be described.

First, in the state in which the abutment 10 is coupled to the fixture 20, the operator confirms the height of the gum 42 that is in contact with the margin 13 of the abutment 10.

At this time, when the gum 42 is in contact with the margin of the margin portion 13, the remaining margins protruding spirally on the upper portion of the margin are cut and removed, and the margin and the gum of the margin portion 13 ( 42) The remaining margins are cut to match the surface of the surface to complete the procedure.

When the crown 30 is mounted after the procedure is simply completed by cutting the margin 13 as described above, the lower surface of the crown 30 abuts on the upper surface of the margin 13 and the gum 42 The surface is aligned with the lower surface of the crown 30.

5 is a cross-sectional view showing various margins of an abutment for implants according to an embodiment of the present invention.

Referring to Figure 5 (a), the cross-section (13-1) of the margin of the implant for abutment according to an embodiment of the present invention may be provided with a smaller diameter toward the top.

Referring to FIG. 5 (b), the diameter of the cross section 13-2 of the margin of the abutment for implants according to an embodiment of the present invention increases from the top to the center, and has a maximum diameter at the center. , It may be provided so that the diameter becomes smaller from the center to the bottom.

Referring to Figure 5 (c), the cross-section (13-3) of the margin of the implant abutment according to an embodiment of the present invention may be provided with a narrow diameter toward the bottom.

In this way, the cross-sections (13-1 to 13-3) of the margin of the implant abutment according to an embodiment of the present invention can be variously modified according to the needs of the user, which is the scope of the present invention It is not limited.

The above description is merely illustrative of the technical idea of the present invention, and those of ordinary skill in the art to which the present invention pertains can make various modifications, changes, and substitutions without departing from the essential characteristics of the present invention. will be.

Therefore, the embodiments and the accompanying drawings disclosed in the present invention are not intended to limit the technical spirit of the present invention, but to explain the scope of the technical spirit of the present invention. .

The scope of protection of the present invention should be interpreted by the claims below, and all technical spirits within the scope equivalent thereto should be interpreted as being included in the scope of the present invention.

10: abutment 20: pitcher 30: crown
12: crown coupling portion 13: margin portion 14: fixture coupling portion

Claims (5)

A fixture coupling portion inserted into the fixture placed in the alveolar bone;
A margin portion formed to extend above the fixture coupling portion; And
It is formed to extend to the upper side of the margin portion, and includes a crown coupling portion to which the crown is coupled to the outer circumferential surface,
The margin portion,
It includes a plurality of margins extending upward from the top of the fixture coupling portion to form a constant pitch along the outer peripheral surface of the margin portion,
The crown engaging portion includes a crown fixing portion of the outer circumferential surface,
The fixture coupling portion, the margin portion and the crown coupling portion is an abutment for implant, characterized in that the bulk type. According to claim 1,
The margin is an implant abutment, characterized in that formed so that the diameter of the outer circumferential surface becomes smaller toward the upper side. According to claim 2,
An abutment for an implant, characterized in that the bottom surface of the margin is flat. The method of claim 3,
An abutment for an implant, characterized in that the lower surface of the margin is provided to be parallel to the upper surface of the fixture. According to claim 1,
The pitch is abutment for implants, characterized in that 0.5 to 1 mm.

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