为提高对牙体病治疗的疗效,明确诊断,选择正确的治疗方案是很重要的,而这又基于各种口腔检查手段的准确率。电和温度测试目前广泛被用于临床以估计牙髓的状况。电测试是很常用的,但有一定的局限性。电测试用在具有较大金属修复体的无髓牙时,可通过牙周组织传导引起假阳性反应;测试液化坏死的牙齿,亦可通过坏死液化牙髓而出现 In order to improve the curative effect of dental disease treatment, it is very important to choose a correct treatment to confirm the diagnosis and this is based on the accuracy of various oral examinations. Electrical and temperature testing is currently widely used clinically to assess the condition of the dental pulp. Electrical test is very common, but has some limitations. Electrical testing with non-myelinated teeth with larger metal restorations can result in false-positive reactions through periodontal tissue conduction; testing of liquefied necrotic teeth can also occur by necrotic liquefaction of the dental pulp