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牙体纵裂临床较为常见,折裂的形态亦不尽查同,现根据其折裂形态,牙髓、牙周和根尖状况,对症治疗后应用金属全冠或带环冠修复75例81个后牙纵裂,取得较满意的效果。 1 临床资料 共治疗后牙纵裂75例81牙,其中男59、女16;活髓牙23(28.4％)、死髓牙(包括已做过治疗的无髓牙)58(71.6％);患者年龄为19～64岁,其中41～50岁占34.7％,51～60岁占25.9％。 牙齿纵裂时间自1d至3年不等。患牙上颌多于下颌,16、26最多,有35个(43.2％);17、27次之,有19个(23.5％);36、46有10个(12.4％)。
Dental longitudinal splitting clinical is more common, the shape of the fracture is not exhaustive, according to its fracture morphology, pulp, periodontal and apical conditions, after symptomatic treatment with metal crown or ring crown repair 75 cases of 81 Longitudinal crack, to obtain more satisfactory results. Clinical data A total of 81 teeth (75 males and 16 females), 23 vital pulp teeth (28.4%) and 58 (71.6%) dead pulp teeth (including untreated untreated teeth) after treatment. Patients aged 19 to 64 years, of which 41 to 50 years accounted for 34.7%, 51 to 60 years accounted for 25.9%. Longitudinal separation of teeth from 1d to 3 years. There were 35 patients (43.2%) with maxillary maxillary teeth than mandibular maxillary teeth, 19 (23.5%) with 17,27 times, and 10 (12.4%) with 36,46 teeth.