种植体支持的多单位螺丝固位氧化锆烤瓷与金属烤瓷修复体临床效果的比较研究

A comparative study on the clinical effects of implant-supported multi-unit screw-retained zirconia prosthesis versus metal-ceramic prosthesis

目的:比较种植体支持的螺丝固位氧化锆烤瓷修复体及金属烤瓷修复体的临床疗效。方法:对2011年1月~2016年9月就诊于首都医科大学附属北京口腔医院种植中心的患者进行随访,根据修复体材料分组,氧化锆烤瓷修复体组和金属烤瓷修复体组。统计比较两组在存留率、生物学并发症和机械并发症发生率方面的差异。结果:共纳入77例患者,91个修复体,233枚种植体。两组在存留率、生物学并发症和机械并发症方面的差异无统计学意义(P>0.05);两组最常见的机械并发症均为修复体崩瓷和松动。结论:两种不同材料修复体的临床疗效基本一致,种植体支持的螺丝固位氧化锆烤瓷修复体可获得稳定和可预期的远期临床疗效。

Objective:To compare the clinical efficacy of screw-retained zirconia ceramic restorations and metal-ceramic restorations supported by implants.Methods:Patients who visited the Implant Center of Beijing Stomatological Hospital affiliated with Capital Medical University from January 2011 to September 2016 were followed up,and were grouped according to the materials of the restorations:zirconia-ceramic and metal-porcelain.The survival rates of the implants and restorations,the occurrence rates of biological and mechanical complications were recorded and compared between the two groups.Results:A total of 77 patients,91 restorations,and 233 implants were included.There was no statistically significant difference between the two groups in terms of survival rates,biological and mechanical complications(P>0.05).The most common mechanical complications in both groups were chipping and loosening of the restorations.Conclusion:The clinical efficacy of the two different material restorations is basically consistent.Implant-supported screw-retained zirconia ceramic restorations can achieve safe and predictable longterm clinical effects.