前牙金属烤瓷冠与氧化锆全瓷冠修复后牙周组织变化对比

Compared the effect of anterior PFM and Zirconia all-ceramic crowns.

目的探讨金属烤瓷冠与氧化锆全瓷冠对前牙修复后的牙周组织变化。方法选取2008年10月至2009年11月我院收治的需要进行前牙烤瓷冠修复的患者160例,随机分为两组。治疗组采用氧化锆全瓷冠修复,对照组采用金属烤瓷冠修复。1年后评估其修复效果。结果烤瓷冠组51例(63.8%)的金属合金烤瓷冠修复后发生牙周改变,45例发生轻度牙周改变,6例发生重度牙周改变;而氧化锆全瓷冠只有3例(3.8%)发生轻微改变。结论氧化锆全瓷冠对前牙修复后牙周组织变化明显轻于金属烧瓷冠。

Objective To investigate the effect of metal-porcelain（porcelain-fused-to-metal,PFM） crown and zirconia all-ceramic crowns on anterior teeth before and after restoration and repair of periodontal tissues.Methods From October 2008 to November 2009,160 outpatients of the hospital with the needs of the treatment with anterior porcelain crown were randomly divided into two groups.Patients in treatment group were treated with zirconia all-ceramic crowns,patients in control group were treated with PFM crown.The recovery effect was assessed one year later.Results 63.8% of the patients received the treatment of PFM crown showed periodontal changes including mild periodontal changes in 45 patients and severe periodontal changes in 6 patients;however,only 3 patients received the treatment of zirconia all-ceramic crowns showed minor periodontal change.Conclusion Zirconia ceramics fully to front teeth after coronary periodontal tissue repair changes obviously from metal porcelain crowns light.