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材料和方法 所用牙科发声探针仪为第四军医大学口腔学系等单位研制,西安金星电子电器厂生产的Y—Ⅰ型。 研究对象为我院门诊患者46人,其中男性29人,女性17人,年龄在6—70岁范围内,选择因严重牙周病、龋坏不能修复或因修复,正畸需要而需拔除的牙共50个,其中前牙26个,前磨牙14个,磨牙9个,乳牙二个,每个牙测量1个根管,共测量50个根管。以上病员均为志愿测量者。 操作方法如下:
Materials and methods used dental sounding probe for the Fourth Military Medical University Department of Stomatology and other units developed by Xi'an Venus Electrical and Electronic Factory Y-Ⅰ type. Subjects were 46 outpatients in our hospital, including 29 males and 17 females, aged from 6 to 70 years old, who had to be removed due to severe periodontal disease, caries could not be repaired or because of orthodontic needs A total of 50 teeth, of which 26 anterior teeth, premolar 14, molars 9, two deciduous teeth, measuring 1 root canal per tooth, measuring a total of 50 root canal. More patients are volunteers. The operation method is as follows: