测试设备为第四军医大学口腔医院研制的Y型牙科发声探针。测试对象为作者近年来接诊的100名患者的100个龋齿。其中合面洞83例,邻合洞17例。测试方法:按使用说明书调整好电测仪后,将粘膜电极夹于患者任何一侧的颊粘膜上,去除被测龋洞内的食物残渣及部分软龋,严密隔湿,特别是靠近牙龈的龋洞更应注意。防止电流从牙龈短路。吹 Test equipment for the Fourth Military Medical University Stomatological Hospital developed Y-shaped dental vocal probe. The subjects were 100 caries of 100 patients admitted to the hospital in recent years. Among them, 83 cases were co-operative and 17 cases were adjacent to co-operative. Test method: According to the instructions to adjust the electrical measuring instrument, the mucous membrane electrode on either side of the patient's buccal mucosa, remove the test caries cavity of the food residue and part of the soft caries, closely spaced wet, especially near the gums Cavity should pay more attention. Prevent current from shorting out of the gums. blow