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Effect of electric charge on titanium Implant.

电荷对钛植入物的影响。

基本信息

批准号：
09672065
负责人：
SAKURADA Shigeyo
金额：
$ 1.41万
依托单位：
Showa University
依托单位国家：
日本
项目类别：
Grant-in-Aid for Scientific Research (C)
财政年份：
1997
资助国家：
日本
起止时间：
1997 至 1998
项目状态：
已结题

项目摘要

Recently, titanimu is most commonly used in dental implants. The implant abutment is usually treated by metal crown, using dental alloy. The ionizing tendency of titanium is greater than any other alloys using in dental treatment. If the titanium abutment is electorically contated with another dental alloy, it is expected that an electric currency is pass through the both metals and also (bone) tissue.We sellect several dental metals, they are dental paradium allyo, stainless allyo for medical use and 18K gold allyo. Pure titanium and dental allyo were standed in the container and filled with human serum. The voltage was measured between titanium and another dental allyo, using a bridge circuit. The voltage between titanium and dental paradium allyo was the greatest between these three allyos. The currency between them is dependent on the square of metal surface, and the currency was gradualy decreased after few minutes. It can be explained the polarization was occurred on the metal surfaces and also the surface of the metals turned to the passive state.We cultured a cell line (NA cells) on the titan plate and another dental alloy in plastic dish. The two metals were electrically contacted in one dish, and not contacted in control dish. The cell attachment to the metals were inhibited in electrically contacted dish.

最近，钛合金最常用于牙科植入物。种植体基牙通常采用金属冠处理，使用牙科合金。钛的电离倾向大于牙科治疗中使用的任何其他合金。如果钛基台与另一种牙科合金发生电接触，预计电流将通过两种金属和（骨）组织。我们选择了几种牙科金属，它们是牙科钯合金，医用不锈钢合金和18K金合金。将纯钛和牙科合金置于容器中，并填充人血清。用桥式电路测量钛和另一个牙科合金之间的电压。三种合金中钛与牙托合金间的电压最大。它们之间的货币依赖于金属表面的平方，并且货币在几分钟后逐渐减少。我们在钛板上培养了一个细胞系（NA细胞），在塑料培养皿中培养了另一种牙科合金。两种金属在一个盘中电接触，而在对照盘中不接触。在电接触培养皿中，细胞对金属的附着受到抑制。