烤瓷贴面临床效果相关影响因素的回顾性研究

A retrospective study on the contributing risk factors for clinical failures of porcelain laminate veneers

目的:评价完成修复1-8年的310颗长石质烤瓷贴面的远期临床效果,对临床效果相关影响因素进行分析。方法:对完成修复1-8年的310颗前牙或前磨牙长石质烤瓷贴面进行复查,采用改良的瓷贴面评价标准对修复体完整度、修复体磨耗、颜色满意度、边缘染色、边缘适合性、继发龋、牙本质敏感症状及牙龈指数8项指标进行评估,统计烤瓷贴面修复的存败率,logistic回归分析对影响临床效果的相关因素进行分析。结果:烤瓷贴面修复1-8年的总存留率为90.65%。患者具有咀嚼系统不良习惯、修复后使用不当、口腔卫生状况差,患牙为年轻恒牙、着色程度严重,修复体颈缘位于龈下、前伸早接触是影响修复效果的危险因素。结论:烤瓷贴面修复技术的远期临床效果良好,存在的影响修复效果的危险因素尚待临床上克服。

Objective： To investigate the long-term clinical outcomes of porcelain laminate veneers after 1-8 years follow-up and explore the contributing risk factors for failures. Methods： A total of 310 feldspathic porcelain laminate veneers on anterior teeth or premolars in 49 patients were included in the present study. All the subjects underwent a detailed clinical examination utilizing the modified criteria, which included restoration integrity, abrasion, color satisfaction, marginal discoloration, marginal adaptation, secondary caries, postoperative sensitivity, and gingival index. The survival rate of the prostheses was statistically analyzed. Logistic regression analysis was used to analyze the contributing risk factors for clinical failures. Results： The 1-8 year survival rate of porcelain laminate veneers was 90.65%. Parafunctional habits, improper use, poor oral hygiene, immature permanent teeth, severe staining, subgingival margins, premature contacts in protrusive occlusion were the risk factors for clinical failures. Conclusions： The long-term clinical outcomes of porcelain laminate veneers are satisfying. The risk factors for clinical failures should be overcome in the future.