文档介绍：二氧化锆全瓷冠修复效果的长期临床研究
浙江省台州市立医院口腔科,318000
卢宇杨枫,严齐会
摘要目的研究大样本量的二氧化锆全瓷冠修复后3年的修复效果及成功率。方法采集自2005年10月至2006年11月在我院口腔修复科行二氧化锆全瓷冠修复的患者的临床资料,共有161名患者的204颗二氧化锆全瓷冠义齿纳入研究。结果多数全瓷冠位于后牙区(78%)。临床修复效果较好,未发生全瓷冠核破裂及继发龋32颗义齿出现并发症(16%),其中12颗(6%)发生严重并发症而修复失败。其中5颗基牙被拔除,丧失固位力而重做4颗,瓷面破裂2颗,持续疼痛1颗。结论二氧化锆全瓷冠凭借其可靠的性能,可以应用于前磨牙及磨牙的全瓷冠修复。同时也应继续进行更长期的临床随访,以确定其长期修复效果。
关键词:二氧化锆、全瓷冠、并发症、CAD/CAM技术
Long Term Clinical e of Zirconia Single Crowns
Yu Lu
Department of Stomatology, Taizhou Municipal Hospital ,Zhejiang
[Abstract] Objectives: The aim was to present the 3-year e of zirconia single crowns. Methods: All patients treated with porcelain-veneered zirconia single crowns during the period October 2005 to November 2006 were included. The patient records were scrutinized for data on the restorations and the supporting teeth. Information was available for 161 patients and 204 crowns. Results: Most crowns (78%) were placed on premolars and molars. The clinical e of the crowns was favourable. No zirconia core fractured and no caries was observed on the abutment teeth. Some types plicationwere recorded for 32 (16%) crowns or abutment teeth. The most plications, in total 12 restorations (6%), were recorded as failures: abutment tooth was extracted (5), remake of crown due to lost retention (4), veneer fracture (2) and persistent pain (1). Conclusions: The results of the present 3-year study sugges