分体桩在低龈距磨牙残根残冠烤瓷修复中的应用  

Application of Insertion-type Separate Post on Ceramic Restoration of Molar Residual Root and Crown with Low Occlusogingival Distance

作　　者：陈志红[1] 胡军[1] 陈新民[2] 黄隆龙[1] 

机构地区：[1]浙江大学医学院附属口腔医院修复科,浙江杭州310006 [2]四川大学华西口腔医院修复科,四川成都610041

出　　处：《华西口腔医学杂志》2007年第2期129-131,共3页West China Journal of Stomatology

摘　　要：目的探讨插销式分体桩与桩冠联合修复低龈距且根分叉较大的磨牙残根残冠的效果。方法对19例患者的19颗低龈距且根分叉较大的磨牙残根残冠行插销式分体桩与桩冠联合修复。沿着基牙根管的自然方向进行根管预备,用注射型硅橡胶印模材取模,分别制作插销式分体桩和桩核-金属烤瓷冠,玻璃离子粘接,光固化复合树脂充填分体桩孔,完成修复。结果19颗残根残冠的修复体均固位良好,无松动、脱落,边缘密合,无牙龈炎症,咀嚼功能良好,患者满意。结论插销式分体桩与桩冠联合修复低龈距且根分叉较大的磨牙残根残冠,可以取得较好的美观和固位效果。Objective To study the clinical effects of insertion-typo separate post and post-crown on ceramic restoration of molar residual root and crown with low occlusogingival distance and large root bifurcation angle. Methods 19 molar residual roots and crowns with low occlusogingival distmace （〈3 nun） and large root bifurcation angle were involved in this study. Firstly, the root canals were prepared according to their natural directions without concerning about the common path of insertion. Accurate impression were taken with silicone. Insertion-typo separate post and core-ceramic crown were fabricated respectively. Finally, the two parts were cemented together in patient after try-in, and the upper post cavity were filled with light-sensitive composite resin. Results None of prostheses was loose and no abutment teeth fractured for 6-38 months. All of the fixed restorations were found with good marginal fitness and well masticatory function without sign of gingivitis. Conclusion Insertion-typo separate post and post-crown is a better method to restore molar residual root and crown with low occlusegingival distance and large root bifurcation angle.

关 键 词：桩核系统 磨牙 残根 残冠 

分 类 号：R783.3[医药卫生—口腔医学]