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前牙外伤性冠根联合斜折通常采用拔除断冠、根管治疗.我们采用粘结技术加根管钉固位治疗取得较满意效果.1 临床资料20人24个患牙,男12人14个患牙,女8人10个患牙,年龄15～36岁,上中切牙21个,侧切牙2个,下中切牙1个,均为外伤(撞伤、碰伤、拳击伤)所致冠根联合斜折,唇侧折线位于龈上,腭侧折线位于龈下,断冠无缺损并有腭侧牙龈相连而未脱落.断冠松Ⅰ°～Ⅲ°不等.唇侧折线分离0.5 mm～1.5mm,折线部渗血.患者均在伤后1～3天内就诊.X线牙片示根尖周无异常,牙槽骨无明显吸收,无牙槽骨骨折.局麻下手法将断冠复位,应用酸蚀粘接技术,将患牙用E_(13)树酯和两边邻牙粘结固位,常规开髓拔髓,一次完成去髓术.牙周冲洗,上碘甘
Anterior teeth traumatic crown root combined oblique bends are usually used to remove the broken crown, root canal treatment. We use the adhesive technique and root canal nail retention treatment to obtain more satisfactory results .1 clinical data 20 24 teeth, 12 men 12 There were 10 affected teeth and 8 female teeth, aged 15-36 years. There were 21 upper incisors, 2 lateral incisors and 1 lower incisor. All of them were trauma (bruises, bumps and boxing injuries) Due to crown root combined oblique, lip fold line located in the gingival, palatal fold line located in the subgingival, broken crown without palatal gingival and connected with the fall off. Isolated 0.5 mm ~ 1.5mm, fold line Department of oozing. Patients were treated within 1 to 3 days after injury .X-ray showed no abnormal apical week, no significant alveolar bone absorption, no alveolar fractures. The technique was applied to remove the broken crown, and the acid erosion bonding technique was used to bond the affected tooth with E_ (13) resin and the two adjacent teeth. Conventional pulp demyelination was performed. sweet