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本研究的目的在于分析牙脱位再植后与牙周韧带(PDL)愈合相关的因素。 作者应用标准X线片和临床检查(如叩诊和松动度)检查了400个脱位再植恒牙的PDL愈合情况。记录并分析了下列各种临床因素:年龄、性别、再植牙的类型、有无冠折或牙槽骨骨折、根发育的阶段(含根尖孔的直径和牙髓长度)、牙槽骨外保存的类型和时间、根表面污染情况、根表面清洁的方法、固定的方式和时间长短及抗菌治疗。PDL愈合可分为:①正常PDL愈合;②牙根表面吸收;③牙根炎症性吸收;④固连;⑤为②～④同时存在。
The purpose of this study was to analyze the factors associated with periodontal ligament (PDL) healing after replantation of dental dislocation. The authors examined the PDL healing of 400 dislocated and replantation permanent teeth using standard radiography and clinical examinations such as percussion and loosening. The following clinical variables were recorded and analyzed: age, sex, type of replantation, fracture with and without alveolar bone, stage of root development (diameter of apical foramina and pulp length), alveolar bone The type and time of preservation, the contamination of the root surface, the method of cleaning the surface of the root, the manner and duration of immobilization, and antibacterial treatment. PDL healing can be divided into: ① normal PDL healing; ② root surface absorption; ③ root inflammatory absorption; ④ solid; ⑤ ② ② ④ exist.