KR102227070B1 - Dental polymer abutments manufacturing method - Google Patents

Abstract

The present invention relates to a dental polymer abutment, comprising: a body portion made of a polymer (polymer)-based PEEK (polyether ether ketone) material in a rod shape; An abutment provided on the upper part of the main body by high-temperature heat and detachably coupled to a processing machine; And a coupling portion provided by high temperature heat at a lower portion corresponding to the upper portion of the body portion provided with the abutment and coupled to the fixture implanted in the alveolar bone. A polymer abutment block made of a polymer (polymer)-based PEEK material with high biocompatibility, aesthetics, processability, and high adhesion between homogeneous materials by simplifying the process process and improving work efficiency. Not only can it be improved, but there is an effect of reducing the economical cost burden such as labor and material costs.

Description

Manufacturing method of dental polymer abutment {DENTAL POLYMER ABUTMENTS MANUFACTURING METHOD}

The present invention relates to a method of manufacturing a dental polymer abutment, and more particularly, a polymer abutment block made of a polymer (polymer)-based PEEK material with high biocompatibility, aesthetics, processability, and high adhesion between homogeneous materials. Therefore, the present invention relates to a method of manufacturing a dental polymer abutment that can simplify the process and improve work efficiency, as well as reduce economical cost burdens such as labor and material costs.

In general, an implant refers to a replacement that restores when the original human tissue is lost, but in dentistry, it means implanting an artificial tooth in a dentistry. In other words, an implant refers to a procedure in which a replacement tooth root that can replace the lost tooth root (root) is planted in the alveolar bone from which the tooth has passed, and then the artificial tooth is fixed to restore the function of the tooth.

In the case of a general prosthesis or denture, the surrounding teeth and bones are damaged over time, but the implant does not damage the surrounding dental tissue, and it has the advantage of being semi-permanent because it has the same function or shape as a natural tooth and does not cause caries.

In addition, the implant has the advantage of improving the function of dentures and improving the aesthetic aspect of dental prosthetic restorations in patients with partial and complete dentition, as well as single-defective tooth restoration. Furthermore, it helps to stabilize the dentition as well as disperse the excessive stress applied to the surrounding support bone tissue.

As described above, the dental implant procedure is divided into a procedure for placing an implant in the gum bone, that is, an alveolar bone, and a prosthetic procedure for attaching an artificial tooth by connecting an abutment to the implanted implant.

The implant is composed of a fixture that is placed in the alveolar bone, an abutment that is fixed to the fixture by a screw, and a crown that is covered with the abutment to form the appearance of the implant.

Among the components of the implant, the abutment serves to transmit the load transmitted from the crown to the fixture and transmit it to the jawbone. Therefore, the abutment must be manufactured by reflecting the size, shape, and contour of the artificial tooth, occlusion with the surrounding teeth, the characteristics of individual teeth, the state of the gum, and the gum line. Therefore, rather than being supplied as a ready-made product having a uniform size, the abutment is generally customized according to the teeth of each patient.

Custom abutments are mainly manufactured by casting method. In other words, an abutment is manufactured by obtaining a tooth bone from a patient, designing a gypsum mold based on experience by an experienced technician based on the shape of the tooth bone, injecting dissolved abutment material into the gypsum mold, and cooling it. That's how to do it.

However, in the abutment manufactured by the casting method, due to a process error, a gap occurs in the part where the abutment and the gum contact.

Food caught in these gaps may cause tooth decay or cause a patient to feel a sense of heterogeneity.

In addition, there is a problem in that the abutment process is cumbersome and thus provides inconvenience to the operator, as well as economical burdens such as labor and material costs are improved.

Related prior art is Registration Patent Publication No. 10-1406043 (Name of the invention: Separate polymer abutment that can be customized, registration date: June 03, 2014) and Registered Patent Publication No. 10-1375154 (invention Name: Polymer abutment corresponding to tooth shape, registration date: March 11, 2014).

The present invention was invented to solve the problems of the prior art as described above, and due to the polymer abutment block made of a polymer (polymer)-based PEEK material with high biocompatibility, esthetics, processability, and high adhesion between homogeneous materials. The purpose of this is a method of manufacturing a dental polymer abutment that can simplify the process and improve work efficiency, as well as reduce the economical cost burden such as labor and material costs.

Other objects of the present invention can be understood through the features of the present invention, can be more clearly understood through the embodiments of the present invention, and can be realized by means and combinations shown in the claims.

In order to achieve the problem to be solved by the present invention as described above, the present invention has the following technical characteristics.

The dental polymer abutment according to the present invention has a rod shape, comprising: a main body made of a polymer (polymer)-based PEEK (polyether ether ketone) material; An abutment provided on the upper part of the main body by high-temperature heat and detachably coupled to a processing machine; And a coupling portion provided by high temperature heat at a lower portion corresponding to the upper portion of the body portion provided with the abutment and coupled to the fixture implanted in the alveolar bone. It is made including.

In the dental polymer abutment according to the present invention, the abutment and the coupling portion are each provided on the body portion, and at least one or more protrusions are respectively formed on a portion provided on the body portion.

The method of manufacturing a dental polymer abutment according to the present invention comprises: filling a powder made of a polymer (polymer)-based PEEK (polyether ether ketone) material into a rod-shaped body frame; Mounting an abutment detachably coupled to a processing machine on an upper portion of the main frame; Seating a coupling portion coupled to a fixture implanted in the alveolar bone at a lower portion corresponding to an upper portion of the frame of the body portion for seating the abutment; Heating the abutment and the body portion frame in which the coupling portion is respectively seated with high temperature heat; Lowering or removing heat when the high-temperature heat heated in the body frame reaches a set time and a set temperature; Removing the frame of the main body; And finishing by removing debris provided around the outer circumferential surface of the polymer abutment formed by removing the frame of the main body. It is made including.

In the method of manufacturing a dental polymer abutment according to the present invention, the method comprising: compressing the powder filled in the rod-shaped body frame using a compression system such as a press; It further includes.

In the method of manufacturing a dental polymer abutment according to the present invention, a space is formed between the powder and the abutment and the coupling portion before the compression step.

In the method of manufacturing a dental polymer abutment according to the present invention, at least one protrusion is formed on a portion of the abutment and the coupling portion respectively seated on the upper and lower portions of the main frame and in contact with the powder.

The present invention is a polymer abutment block made of a polymer (polymer)-based PEEK material with high biocompatibility, esthetics, processability, and high adhesion between homogeneous materials through a means of solving the above problems. In addition to improving the efficiency of the product, it has the effect of reducing the economical cost burden such as labor and material costs.

Other effects of the present invention can be understood through the features of the present invention, can be more clearly known through the embodiments of the present invention, and can be exerted by means and combinations shown in the claims.

1 is a perspective view of an embodiment of a dental polymer abutment according to the present invention,
Figure 2 is a cross-sectional view showing the interior of the dental polymer abutment according to Figure 1,
3 is a cross-sectional view showing another embodiment of the dental polymer abutment according to FIG. 1;
4 is a flow chart of an embodiment of a method for manufacturing a dental polymer abutment according to the present invention,
5 is a flow chart further including the compression step according to FIG. 4.

DETAILED DESCRIPTION OF THE INVENTION The detailed description of the present invention described below refers to the accompanying drawings, which illustrate specific embodiments in which the present invention may be practiced. These embodiments are described in detail sufficient to enable a person skilled in the art to practice the present invention. It should be understood that the various embodiments of the present invention are different from each other, but need not be mutually exclusive. For example, specific shapes, structures, and characteristics described herein may be implemented in other embodiments without departing from the spirit and scope of the present invention in relation to one embodiment. In addition, it should be understood that the location or arrangement of individual components in each disclosed embodiment may be changed without departing from the spirit and scope of the present invention. Accordingly, the detailed description to be described below is not intended to be taken in a limiting sense, and the scope of the present invention is limited only by the appended claims along with all scopes equivalent to those claimed by the claims. Like reference numerals in the drawings refer to the same or similar functions in various aspects.

1 is a perspective view of an embodiment of a dental polymer abutment according to the present invention, FIG. 2 is a cross-sectional view showing the interior of the dental polymer abutment according to FIG. 1, and FIG. 3 is a dental polymer according to FIG. 1 It is a cross-sectional view showing another embodiment of the abutment.

Prior to describing the dental polymer abutment according to the present invention, the types of implants will be described.

There are approximately 80 implants manufactured in Korea and implants manufactured overseas.

The types of implants are divided into External (1st generation), Internal (2nd generation), and Sunmerged (3rd generation), and are further divided into 3-4 subdivisions for each type.

The type of material varies depending on the thickness of a person's teeth and the root of the tooth.If the root of the tooth is inclined more than 15~25° to both sides, it is classified as Hex (hexagonal) or N-hex. Depending on the size, it is divided into 10T or 14T.

This is divided into approximately 80 types of implant companies and 12-20 types for each type of implant, and there are about 6 types based on thickness and angle.

Hereinafter, a dental polymer abutment according to the present invention will be described.

The dental polymer abutment 100 according to the present invention, as shown in FIGS. 1 to 3, includes a body portion 110, an abutment 120, and a coupling portion 130.

The main body 110 has a rod shape and is made of a polymer (polymer)-based PEEK (polyether ether ketone) material.

Specifically, the main body 110 is custom-made through a computer aided design (CAD) or computer aided manufacturing (CAM) system in order to manufacture the same as the oral condition of the patient, and to process the main body 110 Processing machines such as CNC and milling are used.

The main body 110 is tightly coupled to the connection through a coupling portion formed long in the longitudinal direction (longitudinal direction) described below, so that the processing error is minimized even in the vibration caused by high-speed rotation during processing by a processing machine, so that the desired shape is obtained. It is processed.

The main body 110 has the same physical properties in metal-based, ceramic-based, and non-metallic alloy-based prosthetic materials that are harmless to the human body, such as not causing inflammation in the body, and is a polymer-based material having excellent work efficiency and biological stability. As the prosthetic market changes, high molecular compounds such as PEEK, PEKKTON, and PMMA are used in dental treatment.

Among them, the PEEK material of the present invention, which has the most excellent physical properties, is used to manufacture customized polymer abutments.

The polymer abutment is made of PEEK material and is manufactured through processing (subtraction) such as cutting for custom manufacturing.

Based on the drawings, the polymer abutment is formed in a cylindrical shape, but may be formed into various polygonal pillars such as a pentagonal pillar, a hexagonal pillar, and a heptagonal pillar in some cases.

The PEEK material of the main body 110 is PolyEtherEtherKetone, a high-tech industrial material that boasts the best performance among existing engineering plastics, and its continuous use temperature reaches 250°C.

The body part 110 made of PEEK material is a material that is resistant to temperature, impact, and mechanical deformation due to its characteristics of flame retardancy, high heat resistance, chemical resistance, high abrasion resistance, and high mechanical strength, and its tensile strength is also considerably superior compared to other materials. A lot of different properties are used for various purposes.

The physical properties of the body part 110 made of PEEK material may change significantly around 150°C, which is the glass transition temperature.

The abutment 120 is provided on the upper portion of the main body 110 by high temperature heat and is detachably coupled to the processing machine.

Specifically, one end of the abutment 120 is formed larger than the diameter of the through hole 112 formed in the center of the body portion 110 and is caught in the through hole 112, and the other end is the diameter of the through hole 112 It is formed smaller and is inserted into the through hole 112.

One end of the abutment 120 that is caught by the through hole 112 is partially formed in a hexagonal shape based on the drawing, and it is illustrated that a part of the abutment 120 of the present invention is formed in a hexagonal shape, but in some cases, a square , Pentagon, etc. can be transformed into other polygons.

The abutment 120 provided on the upper part of the main body 110 has high bonding properties between the same materials, and is bonded on a surface that is in contact with each other by high temperature heat, or a part of the abutment 120 is connected to each other by vapor deposition to form a mass.

This is because the body portion 110 and the abutment 120 are formed in a single mass by high temperature heat, so that the formation state can be continuously maintained even at high speed rotation generated during processing of the processing machine.

Therefore, since the polymer abutment 100 that has been manufactured is formed as a block and does not undergo a separate bonding operation, it is possible to improve the convenience of work and shorten the working time.

In addition, since the defective rate of the polymer abutment 100 that has been manufactured is reduced, there is an effect of reducing the economic burden.

The polymer abutment 100 of the present invention not only has high esthetics such as natural teeth, but also has high bonding properties and excellent bio-stability compared to the existing abutments made of Zirconia, Gold, and Titanium.

3 is another embodiment of the abutment and the coupling portion provided on the upper portion of the body portion, the abutment 120 ′ and the coupling portion 130 ′ are provided on the body portion 110 ′, respectively, in the body portion 110 ′. At least one or more protrusions 121 and 131 are respectively formed in a portion to be provided.

The abutment 120 ′ provided on the upper part of the main body 110 ′ has a protrusion 121 formed around the outer circumferential surface of one end inserted into the through hole 112 ′ of the main body 110 ′. ) And the relationship is further improved.

A protrusion 131 is formed in the lower portion of the body portion 110 ′ in which the coupling portion 130 ′ is provided in an inclined lower portion of the body portion 110 ′, so that the coupling relationship with the coupling portion 130 ′ is further improved.

The coupling part 130 is provided at a lower part corresponding to the upper part of the body part 110 on which the abutment 120 is provided by high temperature heat and is coupled to the fixture 10 implanted in the alveolar bone.

Specifically, the coupling portion 130 is provided with a coupling groove 132 formed therein so that the extension portion 111 of the main body portion 110 is inserted and provided integrally by high temperature heat.

The interior of the coupling portion 130 in which the coupling groove 132 is formed is formed in multiple stages, and a portion thereof is formed to be inclined toward the center of the coupling portion 130.

A coupling groove 132 to which the fixture 10 is coupled at the center of the coupling portion 130 is formed to communicate with the through hole 112 of the body portion 110.

As described in the abutment above, the bonding portion is formed as a mass by being bonded to each other on a surface in contact with each other by a high-temperature heat on the body portion, or a part of the abutment is connected to each other by vapor deposition.

This is because the body part and the coupling part are formed as a single unit, that is, by the high temperature heat, so that the formation relationship can be continuously maintained even during high-speed rotation that occurs during processing of the processing machine.

The manufacturing method (S100) of the dental polymer abutment according to the present invention, as shown in Figs. 4 and 5, the filling step (S110), the removal step (S120), the first seating step (S130), the first 2, including a seating step (S140), a heating step (S150), a blocking step (S160), and a confirmation step (S170).

The filling step (S110) is a step of filling a powder made of a polymer (polymer)-based PEEK (polyether ether ketone) material into a rod-shaped body part frame.

The main frame is formed in a rod shape, the lower part is formed in multiple stages, and a hole is formed long in the longitudinal direction so as to form the through hole 112 of the main body 110 in the inner center.

Powder made of PEEK (polyether ether ketone) material has the same physical properties as metal-based, ceramic-based, and non-metallic alloy-based prosthetic materials that are harmless to the human body, such as not causing inflammation in the body, and has excellent work efficiency and biological stability. As a polymer series, high molecular compounds such as PEKKTON and PMMA are used in dental treatment according to the changes in the prosthesis market.

Among them, the PEEK material of the present invention, which has the most excellent physical properties, is used to manufacture customized polymer abutments.

PEEK material powder is a material that is resistant to temperature, impact, and mechanical deformation due to its characteristics of flame retardancy, high heat resistance, chemical resistance, high abrasion resistance, and high mechanical strength. It is used for various purposes.

The removing step (S120) is a step of removing the frame of the main body.

In the removal step (S120) of removing the body part frame, the PEEK material powder filled in the body part frame maintains the shape of the body part 110 as it is.

The shape of the body portion 110 is maintained even if the body portion frame is removed in the removing step (S120), but the shape may be further maintained through the compression step (S180) described below.

The first seating step (S130) is a step of seating the abutment 120 detachably coupled to the processing machine on the upper portion of the main body 110 formed by the removal of the main frame.

The abutment 120 is provided so that one end is exposed from the upper portion of the main body 110, and the other end is inserted into the through hole 112 formed in the center of the main body 110.

One end of the abutment 120 exposed from the top of the main body 110 is formed in a hexagonal shape in part based on the drawing.

In the first seating step (S130), the body portion 110 and the abutment 120 are in close contact with each other through a heating step (S150) or a compression step (S180) described below in a state in which a space is formed. You lose.

The second seating step (S140) is a step of seating the coupling portion 130 coupled to the fixture 10 implanted in the alveolar bone in the lower portion corresponding to the upper portion of the body portion 110 for seating the abutment 120.

The coupling portion 130 is inserted into and seated in the extension portion of the body portion 110 formed in multiple stages, and the coupling groove 132 formed in the center of the coupling portion 130 and the through hole 112 of the body portion 110 Is formed to communicate.

In the second seating step (S140), the body portion 110 and the coupling portion 130 are in close contact with each other through a heating step (S150) or a compression step (S180) in a state in which an interspace is formed as described above. Will disappear.

The heating step (S150) is a step of heating the body portion 110 in which the abutment 120 and the coupling portion 130 are respectively seated with high-temperature heat.

Before performing the heating step (S150), while performing the heating step (S150) in a state in which a space is formed between the abutment 120 seated on the upper portion of the body portion 110 and the coupling portion 130 seated on the lower portion. The spaces between them are in close contact with each other, that is, surface activity is actively generated so that they are bonded to each other, or some of them are connected to each other by vapor deposition to form a mass.

Since the body portion 110, the abutment 120, and the coupling portion 130, which have been subjected to the heating step S150, are integrally formed, the formation state can be maintained even at high speed rotation generated during processing of the processing machine.

The blocking step (S160) is a step of lowering or blocking heat when the high-temperature heat heated in the main body 110 reaches a set time and a set temperature.

When the body part 110 heated by high temperature heat reaches the set time and the set temperature, the relationship between the abutment 120 and the coupling part 130 is integrally formed, and is formed as a block like a block.

Since the body portion 110, the abutment 120, and the coupling portion 130 formed integrally no longer need to be heated with high-temperature heat, the heat is lowered or blocked.

The checking step (S170) is a step of checking the state of the polymer abutment 100 formed while lowering or blocking the high-temperature heat heated in the body part 110.

In the confirmation step (S170), the polymer abutment 100 checks the state of the body part 110, the abutment 120, and the coupling relationship with the coupling part 130.

The compression step (S180) is a step of compressing the powder filled in the rod-shaped body part frame using a compressor system such as a press.

The compression step (S180) is to harden the body portion 110 before heating with high temperature heat, and is compressed through a compressor system such as a press.

In the above, the present invention has been described based on a preferred embodiment, but the technical idea of the present invention is not limited thereto, and modifications or changes can be implemented within the scope described in the claims. It is obvious to the person, and such modifications or changes will fall within the scope of the appended claims.

100: dental polymer abutment
110: main body
111: extension
112: through hole
120: landlord
121: protrusion
130: coupling part
131: protrusion
132: coupling groove
10: fixture
S100: Method for manufacturing dental polymer abutment
S110: filling step
S120: Removal step
S130: first settling step
S140: second settling step
S150: heating step
S160: Blocking step
S170: Confirmation step
S180: Compression step

Claims (6)

delete delete Filling a powder made of a polymer (polymer)-based PEEK (polyether ether ketone) material into a rod-shaped body part frame;
Removing the frame of the main body;
Mounting an abutment detachably coupled to a processing machine on an upper portion of the body portion formed by the removal of the body portion frame;
Seating a coupling portion coupled to a fixture implanted in the alveolar bone at a lower portion corresponding to the upper portion of the body portion for seating the abutment;
Heating the body portion having the abutment and the coupling portion respectively seated thereon with high temperature heat;
Lowering or blocking heat when the high-temperature heat heated in the main body reaches a set time and a set temperature; And
Checking a state of the polymer abutment formed while lowering or blocking the high-temperature heat heated to the body portion; Method for producing a dental polymer abutment, characterized in that comprising a. The method of claim 3,
Compressing the powder filled in the rod-shaped body frame using a compressor system such as a press; Method of manufacturing a dental polymer abutment, characterized in that it further comprises. The method of claim 4,
A method of manufacturing a dental polymer abutment, characterized in that a space is formed between the powder and the abutment and the coupling part before going through the compression step. The method of claim 3,
The method of manufacturing a dental polymer abutment, characterized in that at least one protrusion is formed on a portion of the abutment and the coupling portion respectively seated on the upper and lower portions of the body frame and in contact with the powder.

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