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牙齿最易患龋的区域是面窝沟,由于解剖结构的特点和诊断方法不完善,(牙合)面窝沟初龋常不能早期确诊。作者研究磨牙(牙合)面龋的微细定位,检查离体牙100颗,因牙周病拔牙,病人年龄50~60岁。仔细清洁牙面,拍摄(牙合)面照片并放大;制备牙齿磨片并照相放大;显微镜检查磨片确诊龋病,结合照片明确龋的微细定位。检查结果,磨牙患龋率按顺序排列:81.7%,70%,50%,18.3%。(牙合)面龋定位:中央窝60%,远中舌沟和远中舌尖部
Dental caries most vulnerable area is the fissure naps, due to the characteristics of the anatomy and the diagnosis is not perfect, (occlusal) fissure caries often can not be early diagnosis. The author studied the fine positioning of molar (occlusal) surface caries, examining 100 teeth isolated, due to periodontal extraction, the patient aged 50 to 60 years. Carefully clean the tooth surface, photograph (occlusal) face photos and enlarge; preparation of dental grinding and photo magnification; microscopic examination of the grinding disc diagnosis of dental caries, combined with the photo fine caries fine positioning. The examination results showed that the dental caries prevalence rate was 81.7%, 70%, 50% and 18.3%, respectively. (Occlusal) Face caries positioning: central fossa 60%, far tongue tongue and distal tongue tip