龋变牙面负电位形成机理的研究

The study on mechanism of the negative bio-potential formed on the dental caries surface

目的：研究龋变牙面负电位形成的机理。方法：用化学发光法测定龋变组织中超氧化物阴离子自由基的量，以同一患者唾液作对照。结果：龋变组织含有大量超氧化物阴离子自由基。

bjective: To study the pathogenesis of the negative biopotential on the dental caries surface. Method: Superoxide anion radical in the decaied tissues was measured with Lumiphotometer. The saliva of the identical individuals was used as the control. Result: A lot of superoxide anion radicals were found in the decaied tissues. Conelusion: Freeradical and free electron from freeradical may play some role in the pathogenesis of the negative biopotential at dental caries surface.