摘要
目的评价改良式牙冠延长术应用于治疗龋坏或劈裂达龈下的后牙的临床效果。方法 7颗龋损或劈裂达龈下的后牙,采用仅降低病损部位牙槽骨高度的方法来恢复丧失的生物学宽度,3个月后全冠修复,定期随访检查牙齿松动度、菌斑指数、牙龈指数和探诊深度。结果 7例患者追踪观察15～24个月,平均21.7个月,患牙牙龈健康、美观、稳定。结论作为传统术式的一种改良,后牙改良式牙冠延长术在满足患区修复学要求的同时,又减少了其他部位由于主动性去骨而造成的不良后果。
Objective To evaluate the clinical effect of a modified technique for surgical crown lengthening implemented the molars destroyed below the gingiva.Methods The alternative to the traditional method involves lowering the height of alveolar bone in the destroyed region to rebuild the biological width.All of these 7 molars,with certain region destroyed below the gingiva by caries or fracture were considered as not suitable for the traditional prosthetics methods.They were treated by this modified method of surgical crown lengthening.Restoration was accomplished on these teeth three month later.Periodontal index such as tooth mobility,plaque index,probing depth and bleeding index were recorded and followed up for more than 15 months.Results The mean follow-up period was 21.7 months（ranged from 15 to 24 months）.Result of surgery and restoration of these 7 teeth was satisfactory.The gingival tissue remained healthy and esthetic with good function.Conclusion As an alternative to the traditional method,this modified surgical crown lengthening can not only meet the demand of prosthetics in the destroyed region,but also reduce the negative consequences for excessive lowering the bone height in the other region.
出处
《广东牙病防治》
2011年第8期401-404,共4页
Journal of Dental Prevention and Treatment
