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牙髓电活力试验是口腔科一种重要的辅助诊断实验,国外关于这方面的研究很多。本文作者提出了一些临床应用中值得注意的问题,很有参考价值。还有两点值得注意:1.旧式综合治疗台上装备的牙髓电活力测验器,一般是用220V交流电源,由于此类测验器不能达到“失效时也要安全”的原则,易导致术者或患者触电,故现代已不用,改用电池电源式测验器;2.对装有心脏起搏器的患者及严重心率失调的患者,应禁止使用电活力试验,以免造成意外。此外,牙髓电活力试验的准确率与所用仪器种类及操作方法有很大的关系。
Endodontic electrical activity test is an important assistant diagnosis experiment in dentistry. There are many studies in this field abroad. The author of this paper puts forward some notable problems in clinical application, which is of great reference value. There are two points worth noting: 1. Old comprehensive treatment table equipped with pulp electrical activity tester, usually with 220V AC power supply, because such tester can not achieve the “failure also safe” principle, easily lead to surgery Or patients with electric shock, so the modern has not, switch to battery power tester; 2. For patients with pacemakers and patients with severe heart rate disorders, the use of electrical activity test should be prohibited to avoid accidents. In addition, the accuracy of the dental pulp electrical activity test is strongly related to the type of instrument used and the method of operation.