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Preparation method of oral implant material, implant material and application
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An oral implant and graphene technology, which is applied in the field of oral implant material preparation, can solve problems such as poor mechanical properties and limitations, and achieve high hardness, lively properties, and good repeatability.
Active Publication Date: 2020-03-17
SHANDONG UNIV
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Among them, titanium alloy is the most used metal and alloy materials in clinical practice; ceramic materials are led by zirconia, and its excellent biocompatibility and aesthetic properties have gradually attracted people's attention. However, the inventors found that the brittleness and Poor mechanical properties limit broader applications
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[0030] In a typical embodiment of the present application, Example 1, a method for preparing an oral implant material comprises the following steps:
[0031] Step 1: the graphene oxide dispersion liquid and zirconia powder that mass ratio is 0.15 (the quality of graphene oxide dispersion liquid is m 1 , the mass of zirconia powder is m 2 , m 1 / m 2 =0.15) is dissolved in absolute ethanol to form a graphene oxide / zirconia suspension, wherein the graphene oxide dispersion has a purity of 99.8%, a sheet diameter of 0.5um, and a zirconia powder with a purity of 99.9%. The size is 0.5um.
[0032] Step 2: Put the graphene oxide / zirconia suspension obtained in step 1 in an environment of 30°C, use ultrasonic water bath method to mix the graphene oxide and zirconia in the suspension, and use a stirring rod to mix the suspension Stirring, the rotating speed of the stirring bar is 250rpm, and the stirring time is 1h. After the mixing and stirring is completed, a graphene oxide / zirc...
Embodiment 2
[0042] This embodiment discloses a preparation method of an oral implant material. In step 1, the mass ratio of graphene oxide dispersion to zirconia powder is 0.05, and the rest of the steps are the same as in embodiment 1.
[0043] The hardness value of the material obtained by the preparation method of Example 2 is 18.39Gpa, the flexural strength is 748.60Mpa, and the fracture toughness is 8.00Mpa.m 1 / 2 , the contact angle of the material is 77.0°.
Embodiment 3
[0045]This embodiment discloses a method for preparing an oral implant material. In step 1, the mass ratio of graphene oxide dispersion to zirconia powder is 0.1, and the rest of the steps are the same as in embodiment 1.
[0046] The hardness value of the material obtained by the preparation method of Example 3 is 18.96Gpa, the flexural strength is 1252.85Mpa, and the fracture toughness is 8.95Mpa.m 1 / 2 , the contact angle of the material is 55.0°.
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Abstract
The invention relates to a preparation method of an oral implant material, an implant material and application. The preparation method includes the steps of: 1. dissolving a graphene oxide dispersionliquid and zirconium oxide powder in a mass ratio of 0.05-0.2 into anhydrous ethanol; 2. mixing graphene oxide and zirconium oxide in a graphene oxide/zirconium oxide suspension by ultrasonic water bath method, and stirring the graphene oxide/zirconium oxide suspension by a stirring rod; 3. adding aluminum oxide balls into the graphene oxide/zirconium oxide composite solution, and stirring the graphene oxide/zirconium oxide composite solution by ball milling method; 4. carrying out vacuum drying on the graphene oxide/zirconium oxide composite solution; 5. screening the graphene oxide/zirconiumoxide composite powder; and 6. conducting hot pressed sintering on the graphene oxide/zirconium oxide composite powder. The material prepared by the method provided by the invention has high hardnessand bending strength, and has good breaking tenacity and wettability.
Description
technical field [0001] The invention relates to the technical field of oral implants, in particular to a preparation method of oral implant materials, implant materials and applications. Background technique [0002] At present, oral implant materials mainly include polymer materials, composite materials, ceramic materials, metal and alloy materials, and carbon materials. Among them, titanium alloy is the most used metal and alloy materials in clinical practice; ceramic materials are led by zirconia, and its excellent biocompatibility and aesthetic properties have gradually attracted people's attention. However, the inventors found that the brittleness and Poor mechanical properties limit wider applications. Contents of the invention [0003] The purpose of the present invention is to overcome the deficiencies of the prior art and provide a method for preparing oral implant materials. The prepared implant materials have higher hardness, higher bending resistance and good ...
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