摘要
选择78名口内最多缺失2颗牙且存在对颌牙用CAD/CAM氧化锆固定桥修复的患者,制作92件固定桥:3单位桥59件,4单位桥20件,5单位桥13件。在修复体粘接后,随访3年,分析不同长度的全瓷桥并发症的发生和失败原因的差异。6件固定桥需要拆除,修复成功率93.5%;1例因支架断裂拆除,1例由于崩瓷面积较大而拆除,2例因继发龋脱落而不能重新粘接,另外2例前磨牙根管治疗后牙根纵裂和核折断导致修复失败。二氧化锆全瓷冠桥具有较高的成功率,临床效果满意,主要并发症是崩瓷和脱粘接。
To observe the 36 months follow-up outcome of zirconia all-ceramic posterior fixed dental prostheses（FDPs） designed and manu- factured by computer aided design and computer aided manufacture （CAD / CAM） from clinical aspect, and to evaluate the success rate of zirconia framework and veneering porcelain. 78 patients with less than three teeth lost which had natural opposing teeth were included. A to- tal of ninty-two zirconia all-ceramic FDPs （59 three-unit FDPs, 20 four-unit FDPs and 13 five-unit FDPs） were made by CAD/CAM. Three years after cementation of the restorations, the reasons for complication and failure of FDPs in different lengths were analysed. Six FDPs were removed （ frame fracture ： 1 ; porcelain fracture ： 1 ; secondary caries ： 2 ; vertical root fractures and post-core fracture after root canal therapy of premolars： 2）. The success rate of these FDPs was 93.5 %. The success rate of zirconia all-ceramic crowns and bridges was higher. Their clinical effect was satisfactory. The main complications of these FDPs were porcelain fracture and de-bonding.
出处
《实用口腔医学杂志》
CAS
CSCD
北大核心
2015年第4期580-582,共3页
Journal of Practical Stomatology
