摘要:1临床资料 1.1一般资料本组80例,男30例,女50例;年龄18~60岁;100颗患牙(磨牙23颗,前磨牙10颗,前牙67颗)均按以下统一诊断指标收集:①患者主诉有牙髓炎或根尖周炎的临床症状,或口腔检查时发现有根尖周炎体征;②患牙无引起牙髓病及根尖周病的牙体疾患如龋病、非龋性牙体疾病,无填充物,无牙周炎及急性牙外伤史;③患牙均可查出明确的(he)创伤易感因素。
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