A dental implant and a method for preparing a weak-base nanometer surface thereof

A dental implant, weak alkaline technology, used in dental prostheses, dentistry, dental implants, etc., can solve the problems of complex treatment process and poor targeting of osteogenic differentiation of cells, so as to promote bone healing and improve the adhesion of osteoblasts. rate, the effect of promoting binding

Active Publication Date: 2017-07-28
UNIV OF SCI & TECH BEIJING
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

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Problems solved by technology

Among them, the research on the modification of surface chemical composition is still limited to the simple introduction of elements beneficial to osteogenesis (such as Ca, P, Sr, Zn, etc.), or

Method used

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  • A dental implant and a method for preparing a weak-base nanometer surface thereof
  • A dental implant and a method for preparing a weak-base nanometer surface thereof
  • A dental implant and a method for preparing a weak-base nanometer surface thereof

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0032] A dental implant, the surface of which is treated by:

[0033] (1) Select the medical pure titanium dental implant as the base body, and perform surface cleaning: ultrasonic cleaning with acetone, absolute ethanol, and deionized water for 15 minutes each, and then dry naturally;

[0034] (2) Configure the anodic oxidation electrolyte: the electrolyte used is an aqueous glycerol solution of ammonium fluoride, in which the mass fraction of ammonium fluoride is 0.5 wt%, and the volume fraction of water is 2 vol%;

[0035] (3) Preparation of uniform titanium dioxide nanotube film layer by anodic oxidation method: using constant voltage direct current anodic oxidation technology, the pure titanium dental implant after step (1) is used as the anode, and the graphite electrode or platinum sheet electrode is used as the cathode, and put into the step ( 2) In the prepared electrolyte; the working voltage is 20 V, the oxidation time is 3 hours, and the reaction temperature is roo...

Embodiment 2

[0045] A dental implant, the surface of which is treated by:

[0046] (1) Select the medical pure titanium dental implant as the base body, and perform surface cleaning: ultrasonic cleaning with acetone, absolute ethanol, and deionized water for 15 minutes each, and then dry naturally;

[0047] (2) Configure the anodic oxidation electrolyte: the electrolyte used is an aqueous glycerol solution of ammonium fluoride, in which the mass fraction of ammonium fluoride is 1.0 wt%, and the volume fraction of water is 25 vol%;

[0048] (3) Preparation of uniform titanium dioxide nanotube film layer by anodic oxidation method: using constant voltage direct current anodic oxidation technology, the pure titanium dental implant after step (1) is used as the anode, and the graphite electrode or platinum sheet electrode is used as the cathode, and put into the step ( 2) In the prepared electrolyte; the working voltage is 30 V, the oxidation time is 4 hours, and the reaction temperature is ro...

Embodiment 3

[0053] A dental implant, the surface of which is treated by:

[0054] (1) Select the medical pure titanium dental implant as the base body, and perform surface cleaning: ultrasonic cleaning with acetone, absolute ethanol, and deionized water for 15 minutes each, and then dry naturally;

[0055] (2) Configure the anodic oxidation electrolyte: the electrolyte used is an aqueous glycerol solution of ammonium fluoride, in which the mass fraction of ammonium fluoride is 0.5 wt%, and the volume fraction of water is 50 vol%;

[0056] (3) Preparation of uniform titanium dioxide nanotube film layer by anodic oxidation method: using constant voltage direct current anodic oxidation technology, the pure titanium dental implant after step (1) is used as the anode, and the graphite electrode or platinum sheet electrode is used as the cathode, and put into the step ( 2) In the prepared electrolyte; the working voltage is 40 V, the oxidation time is 3 hours, and the reaction temperature is ro...

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Abstract

The invention provides a dental implant and a method for preparing a weak-base nanometer surface thereof. The dental implant employs medical titanium or titanium alloy as a base material and a nanotube feature is prepared on the surface of the base material and is uniformly wrapped with magnesium oxide film layers, so that the dental implant provided with the nano-structure biological activity composite surface and characterized by slow degradation and weak base release is obtained. Uniformly independent nanotube oxide layers are formed on the surface of the titanium base material through in situ oxidation, so that the hydrophilia of the surface is improved; through steps of soaking and sintering, the nanotube walls are uniformly wrapped with magnesium oxide film layers. After implantation of the dental implant in an oral cavity, a weak-base local environment can be obtained through slow release of the magnesium oxide film layers, the propagation and spreading of osteoblasts on the surface of the implant can be promoted, alkaline phosphatase activity thereof can be enhanced, the speed of early-period osseointegration of the implant can be increased and the stability and the survival rate of the implant can be increased.

Description

technical field [0001] The invention relates to the field of dental implant materials, in particular to a method for preparing a weakly alkaline nano surface dental implant. Background technique [0002] During clinical use, medical titanium and its alloys are widely used to refer to dental implants due to their good biocompatibility. However, the biologically inert surface of titanium is difficult to chemically bond with bone tissue, and a fibrous tissue compartment is easily formed at the interface between the implant and the living tissue, causing the implant to loosen, resulting in the failure of titanium dental implant materials. [0003] How to improve the biocompatibility and osseointegration of dental implant materials is the first problem to be solved to improve the success rate of dental implant restoration. Suitable dental implants should not only have mechanical properties close to bone tissue, such as relatively low elastic modulus, corrosion resistance, high s...

Claims

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Application Information

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IPC IPC(8): A61B8/00A61C13/00
CPCA61C8/0012A61C8/0013A61C13/0006A61C2201/00
Inventor 董超芳章彦娴吴俊升肖葵黄运华李晓刚杨瑟飞倪晓晴
Owner UNIV OF SCI & TECH BEIJING
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