改良牙冠延长术与正畸牵引加牙冠延长术对上前牙复杂根折治疗效果的比较  

Comparison of treatment effects of modified crown lengthening surgery and orthodontic traction with crown lengthening surgery on the maxillary anterior teeth complex root fracture

作　　者：李军科[1] 程瑞卿[1] 

机构地区：[1]河北省邢台市眼科医院口腔内科,054000

出　　处：《现代口腔医学杂志》2011年第1期38-40,共3页Journal of Modern Stomatology

摘　　要：目的比较改良牙冠延长术与正畸牵引+牙冠延长术对上前牙复杂根折的治疗效果。方法选取60颗牙体缺损达龈下4.0mm以上的具有保留价值的上颌前牙,随机均分为两组,每组30颗患牙,分别采用改良牙冠延长术和正畸牵引+牙冠延长术,分别记录术前、术后一周及修复后6个月的牙周探诊深度(PD)、龈沟出血指数(SBI)、牙齿松动度(TM),观察临床效果。结果两组病例术后及修复后PD、SBI明显改善,有显著性差异(P<0.05),组间比较,无显著性差异(P>0.05)。结论两种术式对上前牙复杂根折病例均能取得较好的治疗效果。Objective To compare the effects of modified crown lengthening surgery and orthodontic traction with crown lengthening surgery on the maxillary anterior teeth complex root fracture.Methods Sixty maxillary anterior complicated root fracture teeth with from the lowest site tooth defect to the gingival margin 4.0mm, which can be preserved, were selected and respectively divided into two groups, and each group have 30 tooth. The modified crown lengthening surgery and orthodontics traction with crown lengthening surgery was used in the two groups respectively. The probing depth （PD）, sulcus bleeding index （SBI）, tooth mobility （TM） were recorded before operation, at 7 day after operation and on six month after restoration of tooth.Results PD, SBI were decreased significantly at 7 day after operation and on six month after restoration in the two groups （P0.05）. There was no significant difference in comparison between groups （P0.05）.Conclusion Good effect was obtained in using the both two methods on the maxillary anterior teeth complex root fracture.

关 键 词：改良牙冠延长术 正畸牵引 生物学宽度 

分 类 号：R783.3[医药卫生—口腔医学]