KR20090014027A - Members for dental implant and method of fabricating the same, and dental implant comprising the members - Google Patents

Abstract

A member for a dental implant, a manufacturing method thereof, and an implant including the same member are provided to prevent an inflammation of tooth and unscrewing of a screw. A silver alloy layer(131) includes at least one of silver, tantalum, niobium, vanadium, zirconium, platinum, palladium, yttrium, magnesium and titanium. Silver or a silver alloy layer of nano-thickness or micro-thickness is located on the surface of a main screw(130). In the main screw, silver or silver alloy layer is positioned on the entire surface of the main screw.

Description

Dental implant members and methods for manufacturing the same, and dental implants comprising the dental implant member {Members for Dental Implant and Method of Fabricating The Same, and Dental Implant Comprising The Members}

A dental implant member and a method for manufacturing the same, and a dental implant comprising a dental implant member, and more particularly, a method for manufacturing abutment screws and abutments, which are dental implant members, and abutment screws and abutments, which are dental implant members. The present invention relates to a dental implant comprising abutment screws and abutments, which are dental implant members.

Implants are substitutes that recover when human tissue is lost, but in dentistry, implants of artificial teeth are implanted. That is, it is used to semi-permanently implant artificial teeth in the human jawbone. In the case of a general prosthesis or denture, the surrounding teeth and bones may be damaged over time, but the implants may not damage the surrounding dental tissues, and they may be used semi-permanently because they do not have tooth decay with the same function or shape as natural teeth.

In the process of placing the dental implant in the jawbone periodontal disease caused by the infection of harmful microorganisms may occur, which may cause a secondary infection such as peri-implantitis.

In addition, semi-permanent use of dental implants must be firmly secured to the jawbone, and the fixtures constituting the implant and the abutment screws that firmly secure the abutments are frequently loosened and loosened. In some cases, the abutment screw itself may be damaged and released to the outside.

Accordingly, the present invention is to provide a dental implant comprising a dental implant member and a method for manufacturing the same, and a dental implant member that can improve the anti-loosening function and exhibit an antibacterial effect that can prevent bacterial infection.

In addition, the present invention is to provide a dental implant member and a method for manufacturing the same, and a dental implant that can exhibit an antimicrobial effect that can prevent bacterial infection, and can prevent peripheral inflammation. .

The abutment screw, which is a dental implant member according to an embodiment of the present invention, has a micro-thick silver or silver alloy layer located on at least a portion of the surface.

The silver alloy layer may include at least one of silver, tantalum, niobium, vanadium, zirconium, platinum, palladium, yttrium, magnesium, and titanium.

This silver or silver alloy layer may for example be located throughout the surface of the abutment screw.

The abutment, which is a dental implant member according to another embodiment of the present invention, has a nano or micro thick silver or silver alloy layer on at least a portion of the surface.

The silver alloy layer may include at least one of silver, tantalum, niobium, vanadium, zirconium, platinum, palladium, yttrium, magnesium, and titanium.

This silver or silver alloy layer may be located, for example, on the surface where the abutment contacts the alveolar bone.

Dental implant according to an embodiment of the present invention includes a fixture for supporting the artificial crown, abutment for connecting the fixture and the artificial crown, and abutment screw for coupling the abutment to the fixture, the abutment and the abutment At least one of the screws has a nano or micro thick layer of silver or silver alloy on at least a portion of its surface.

The silver alloy layer may include at least one of silver, tantalum, niobium, vanadium, zirconium, platinum, palladium, yttrium, magnesium, and titanium.

The silver or silver alloy layer may for example be located throughout the surface of the abutment screw.

The silver or silver alloy layer may for example be located on the surface of the abutment where the abutment is in contact with the alveolar bone.

Method for manufacturing a dental implant member according to an embodiment of the present invention, to form a silver alloy layer containing at least one of silver or silver, tantalum, niobium, vanadium, zirconium, platinum, palladium, yttrium, magnesium and titanium Washing the implant member; And performing the sputtering and arc ion plate processes on the washed member simultaneously or separately to form the silver alloy layer in nano or micro units on at least a portion of the surface of the member.

In this case, the implant member may be any one of the abutment and the abutment screw.

In addition, the sputtering process is a sputter power of 100 to 400 W, a bias voltage of 0 to 900 V, and a temperature of 25 to 350 ° C under a pressure of 3 to 20 mTorr, under an inert gas atmosphere of a flow rate of 0 to 100 sccm. It can be carried out for a minute, the arc ion plating process is carried out under a pressure of 3 to 20mTorr, under an inert gas atmosphere of a flow rate of 0 to 100sccm, with an arc power of 40 to 80A, with a bias voltage of 0 to 900V, 25 to It may be carried out for 1 to 120 minutes at a temperature of 350 ℃.

In addition, after the silver or silver alloy layer forming step, and further comprising the step of performing a heat treatment on the implant member on which the silver or silver alloy layer is formed, the heat treatment is carried out at a temperature of 200 to 600 ℃ in an inert atmosphere or a vacuum atmosphere 1 To 8 hours.

By placing the silver alloy layer on the surface of the abutment screw which is a dental implant member according to an embodiment of the present invention, the anti-loosening function can be improved and the antibacterial effect can be prevented, which can prevent bacterial infection. By placing the silver alloy layer on the surface of the abutment which is a dental implant member according to the present invention, it is possible to reduce inflammation of the gingival and alveolar bone tissue at the contact surface of the implant and to reduce peri-implantitis, and to exert an antibacterial effect to prevent bacterial infection. As a result, more stable implant procedures can be expected.

In addition, the method for manufacturing a dental implant member according to an embodiment of the present invention, it is possible to provide a dental implant member that is excellent in the adhesion of the silver or silver alloy layer, hardly discoloration occurs.

Advantages and features of the present invention and methods for achieving them will be apparent with reference to the embodiments described below in detail with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below, but will be implemented in various forms, and only the present embodiments are intended to complete the disclosure of the present invention, and the general knowledge in the art to which the present invention pertains. It is provided to fully convey the scope of the invention to those skilled in the art, and the present invention is defined only by the scope of the claims. Like reference numerals refer to like elements throughout.

Hereinafter, a dental implant according to an embodiment of the present invention will be described. 1 is a schematic configuration diagram of a dental implant according to an embodiment of the present invention, Figures 2 to 3 is a cross-sectional view showing a cross-section of the abutment and abutment screw of the dental implant member according to an embodiment of the present invention admit.

As shown in FIG. 1, a dental implant according to an embodiment of the present invention is implanted in an alveolar bone 107 of a missing tooth part, such as a root of a natural tooth, to support an artificial crown (Crown, 140). (Fixture 110), abutment 120 connecting the fixture 110 and the artificial crown 140, abutment screw 130 for coupling the abutment 120 to the fixture 110, and abutment ( 120 is artificial dental crown 140 is fixed in the oral cavity to reproduce the same shape and function as natural teeth.

In this configuration, the fixture 110 is bone-bonded to be completely fixed to the alveolar bone 107 like the root of a natural tooth, and then the abutment 120 is connected to the fixture 110 of the implant with the abutment screw 130, and the artificial on it. When the crown 140 is mounted, the implant is completed. At this time, the fixture 110 passes through the dense bone 107a having a high bone density and is embedded in the spongy bone 107b having a low bone density.

Looking at the coupling relationship between the abutment 120 and the fixture 110 in detail, an insertion hole 104 is formed at the center of the abutment 120, and the abutment screw 130 is inserted through the insertion hole 104 to fix the fixture. The abutment 120 is fixed to the upper portion of the fixture 110 by screwing the fastening hole 112 formed concentrically with the insertion hole 104 of the abutment 120 at the center of the 110. In addition, the artificial crown 110 is contacted while wrapping the abutment 120 at the upper end of the abutment 120 and the contact portion is bonded by an adhesive or the like and supported by the fixture 110.

As shown in FIG. 1, the fixture 110, which is one of the members constituting the implant, is a portion embedded in the alveolar bone 107. In the implant, the fixture 110 corresponds to the most important member, which is also called an implant. do. The fixture 110 is a portion directly coupled to the alveolar bone 107, and may include titanium or a titanium alloy to improve the compatibility with the alveolar bone 107. Specific examples of the titanium alloy included in the fixture 110 will be described below.

As shown in FIG. 2, the abutment 120 positioned at the top of the fixture 110 serves to fix the artificial crown 140 to the fixture 110. This abutment 120 includes a abutment base 121 and a silver or silver alloy layer 122.

The abutment base 121 may include titanium or a titanium alloy. The titanium alloy included in the abutment base 121 is a metal other than titanium, such as aluminum (Al), tantalum (Ta), niobium (Nb), vanadium (V), zirconium (Zr), platinum (Pt), and palladium. It may comprise a titanium alloy to which at least one metal of (Pd), yttrium (Yt), magnesium (Mg), tin (Sn), and molybdenum (Mo) is added. More specifically, the substrate may be pure titanium or, for example, Ti-6Al-4V, Ti-6Al-7Nb, Ti-30Nb, Ti-13Nb-13zr, Ti-15Mo, Ti-35.3Nb-5.1Ta-7.1Zr, Ti -29Nb-13Ta-4.6Zr, Ti-29Nb-13Ta-2Sn, Ti-29Nb-13Ta-4.6Sn, Ti-29Nb-13Ta-6Sn, Ti-16Nb-13Ta-4Mo.

In addition, the nano or micro-thick silver or silver alloy layer 122 located on the abutment substrate 121 serves to suppress the growth of harmful microorganisms. In this case, the silver alloy layer may include at least one selected from silver, tantalum, niobium, vanadium, zirconium, platinum, palladium, yttrium, magnesium, and titanium.

This silver or silver alloy layer 122 may be located on at least a portion of the abutment 120 surface, preferably on the surface in contact with the alveolar bone 107 of FIG. 1.

As shown in FIG. 3, the abutment screw 130 located in the fixture 110 and the abutment 120 serves to fix the abutment 120 to the fixture 110. The abutment screw 130 may comprise titanium or a titanium alloy, may comprise stainless steel, may comprise gold or gold alloy, and optionally at least a portion of the surface, preferably the entire surface. The silver or silver alloy layer 131 may be further located. At this time, the titanium alloy included in the abutment screw 130 is substantially the same as the titanium alloy included in the abutment 120 as described above, and the silver or silver alloy layer 131 on the surface of the abutment screw 130 may also function. Components, thickness, and the like are substantially the same as the silver or silver alloy layer 122 on the abutment 120 surface.

In the case of silver or silver alloy layer 131 of the abutment screw 130, in addition to the function of suppressing the growth of harmful microorganisms, the abutment screw 130 serves to prevent the loosening phenomenon. The abutment screw 130 serves to fix the fixture (110 in FIG. 1) and the abutment (120 in FIG. 1) as described above. The abutment screw 130 should be smoothly tightened and should not be easily loosened even if used for a long time. When the silver or silver alloy layer is formed on the surface of the abutment screw 130, the surface thickness increases uniformly, and when the fixture 110 and the abutment screw 130 are fastened, the thread and the silver or silver alloy layer 131 inside the fixture 110 are fixed. ), The loosening phenomenon can be prevented.

As described above, at least one of the abutment and the abutment screw included in the dental implant according to an embodiment of the present invention may optionally include a silver or silver alloy layer on at least a portion of the surface thereof. That is, in the dental implant according to the embodiment of the present invention, for example, the silver alloy layer may be located only on the surface of the abutment, and the silver alloy layer may be located only on the surface of the abutment screw. In addition, the dental implant according to an embodiment of the present invention, for example, the silver alloy layer may be located on the surface of the abutment and the abutment screw, the silver alloy layer may also be located on all of the surface of the fixture, abutment, abutment screw.

As described above, the silver alloy layer is further located on the surface of at least one member of the abutment and the abutment screw included in the implant, thereby reducing peri-implantitis by reducing inflammation of the gingiva and alveolar tissue at the contact surface with the implant. In addition, the loosening of the abutment screw can be prevented, and more stable implant treatment can be expected.

Subsequently, a method of manufacturing an implant member according to an embodiment of the present invention will be described with reference to FIG. 4. 4 is a flowchart illustrating a method of manufacturing an implant member according to an embodiment of the present invention in the order of process.

As shown in FIG. 4, first, a dental implant member, for example, abutments, abutment screws, and the like, on which silver or silver alloy layers are to be formed, is prepared, and the surface thereof is cleaned (S1).

The above-described member is generally used in dental implants, the abutment may be made of titanium or titanium alloy, the abutment screw may be made of titanium, titanium alloy, stainless steel, gold or gold alloy.

Each of these members can be ion-washed, for example. Ion cleaning may use argon gas.

Next, as shown in FIG. 4, a silver or silver alloy layer is formed on the surface of each member by performing sputtering and arc ion plating processes simultaneously or separately.

In more detail, sputtering is performed using a target containing silver or a target containing silver and tantalum, niobium, vanadium, zirconium, platinum, palladium, yttrium, magnesium, and titanium in a member from which impurities are removed from the surface. And an arc ion plating process to form a silver or silver alloy layer. In this case, the weight% of the metal excluding silver included in the target for forming the silver alloy layer may be, for example, 50% by weight or less, preferably 20% by weight.

The sputtering process is carried out for 1 to 500 minutes at a temperature of 25 to 350 ° C., with a bias voltage of 0 to 900 V, with a sputter power of 100 to 400 W, under an inert gas atmosphere of a flow rate of 0 to 100 sccm under a pressure of 3 to 20 mTorr Can be.

In addition, the arc ion plating process is carried out under an inert gas atmosphere of a flow rate of 0 to 100 sccm under a pressure of 3 to 20 mTorr, with an arc power of 40 to 80 A, a bias voltage of 0 to 900 V, and a temperature of 25 to 350 ° C. It may be carried out for 1 to 120 minutes.

Subsequently, as shown in FIG. 5, a heat treatment may be performed on the member on which the silver or silver alloy layer is formed (S3).

This heat treatment is to increase the bonding force on the member surface of the silver or silver alloy layer, and may be omitted if the bonding force between the silver or silver alloy layer and the member is sufficient.

The member on which the silver or silver alloy layer is formed is heat-treated for about 1 to 8 hours at an inert atmosphere or a vacuum atmosphere, for example, at a temperature of about 200 to 600 ° C. Through such heat treatment, residual stresses that may occur during the formation of the silver or silver alloy layer may be solved, and the adhesion may be compensated for.

If necessary on the surface of the silver or silver alloy layer of the member surface formed as described above, electroplating may be optionally performed, and heat treatment may be performed secondarily. In the case of performing such selective electroplating, silver or a silver alloy plate may be used, or an electrolytic solution containing silver may be used.

As described above, the manufacturing method of the dental implant member according to an embodiment of the present invention can provide a dental implant comprising a member having excellent adhesion of silver or silver alloy layer, hardly discoloration occurs. .

1 is a schematic configuration diagram of a dental implant according to an embodiment of the present invention.

2 to 3 are cross-sectional views showing a cross section of the abutment and the abutment screw of the dental implant member according to an embodiment of the present invention.

4 is a flowchart illustrating a method of manufacturing an implant member according to an embodiment of the present invention in the order of process.

Claims (16)

Abutment screws with nano or micro thick silver or silver alloy layers located on at least a portion of the surface. The method of claim 1, And the silver alloy layer comprises silver, at least one of tantalum, niobium, vanadium, zirconium, platinum, palladium, yttrium, magnesium and titanium. The method of claim 1, And a layer of silver or silver alloy located throughout the surface of the abutment screw. Abutment in which a nano or micro thick layer of silver or silver alloy is located on at least part of the surface. The method of claim 4, wherein The silver alloy layer comprises silver, at least one selected from tantalum, niobium, vanadium, zirconium, platinum, palladium, yttrium, magnesium and titanium. The method of claim 4, wherein The silver column or silver alloy layer is located on the surface where the abutment is in contact with the alveolar bone. Fixtures for supporting artificial crowns; Abutment connecting the fixture and the artificial crown; And Abutment screws coupling said abutments to said fixture, At least one of the abutment and the abutment screw is at least a portion of the surface thereof having a nano or micro thick layer of silver or silver alloy. The method of claim 7, wherein The silver alloy layer is a dental implant comprising at least one of silver, tantalum, niobium, vanadium, zirconium, platinum, palladium, yttrium, magnesium and titanium. The method of claim 7, wherein The silver or silver alloy layer is located throughout the surface of the abutment screw dental implant. The method of claim 7, wherein And the silver or silver alloy layer is located on the surface of the abutment where the abutment is in contact with the alveolar bone. Cleaning the implant member to form a silver alloy layer comprising silver or silver and at least one of tantalum, niobium, vanadium, zirconium, platinum, palladium, yttrium, magnesium and titanium; And Forming the silver alloy layer in nano or micro units on at least a portion of the surface of the member by simultaneously or separately performing the sputtering and arc ion plate processes on the cleaned member. The method of claim 11, The implant member is a method of manufacturing a dental implant member is any one of abutment and abutment screw. The method of claim 11, The sputtering process is carried out for 1 to 500 minutes at a temperature of 25 to 350 ° C., with a bias voltage of 0 to 900 V, with a sputter power of 100 to 400 W, under an inert gas atmosphere of a flow rate of 0 to 100 sccm under a pressure of 3 to 20 mTorr, The manufacturing method of the dental implant member performed. The method of claim 11, The arc ion plating process is carried out under a pressure of 3 to 20 mTorr, under an inert gas atmosphere at a flow rate of 0 to 100 sccm, with an arc power of 40 to 80 A, with a bias voltage of 0 to 900 V, and at a temperature of 25 to 350 ° C. A method of making a dental implant member for 120 minutes. The method of claim 11, After the silver or silver alloy layer forming step, the method of manufacturing a dental implant member further comprising the step of performing a heat treatment on the implant member on which the silver or silver alloy layer is formed. The method of claim 15, The heat treatment is a method for producing a dental implant member is carried out for 1 to 8 hours at a temperature of 200 to 600 ℃ under an inert atmosphere or a vacuum atmosphere.

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