氧化锆全瓷与金属烤瓷冠修复牙体缺损:8个月后牙周状况随访  

Zirconia all-ceramic crown and porcelain fused to metal crown for dental defects: an 8-month follow-up of periodontal conditions

作　　者：胡芳 

机构地区：[1]武汉市江夏区第一人民医院口腔科,湖北省武汉市430200

出　　处：《中国组织工程研究》2015年第30期4795-4799,共5页Chinese Journal of Tissue Engineering Research

摘　　要：背景:氧化锆全瓷冠修复体具有良好的生物相容性及耐腐蚀性,并且对人体牙周组织刺激较小。目的:对比氧化锆全瓷和金属烤瓷冠两种材料修复牙体缺损的临床疗效。方法:纳入20例(120颗牙)拟行牙冠延长联合牙冠修复患者,其中男7例,女13例,年龄19-60岁,采用随机数字表法均分为观察组和对照组,观察组采用氧化锆全瓷材料修复,对照组采用金属烤瓷冠材料修复,比较两组修复后8个月的牙周状况、龈缘高度协调性及修复体边缘隐蔽性。结果与结论:修复8个月后,观察组牙周状况显著优于对照组(P<0.05),佩戴临时修复体时间与康复时间短于对照组(P<0.05),修复体边缘隐蔽性效果显著优于对照组(P<0.05)。两组修复后1,3,8个月的龈缘高度协调性比较差异无显著性意义。表明在牙冠延长后使用氧化锆全瓷修复牙体缺损的临床疗效显著性优于金属烤瓷冠,可获得更好的冠体边缘密合度,改善修复体边缘隐蔽性,减少牙龈炎的发生,降低菌斑的附着能力,更好地维护牙周组织健康。BACKGROUND：Zirconia al-ceramic crown restoration has good biocompatibility and corrosion resistance, and has little irritation to the human periodontal tissue. OBJECTIVE：To compare the clinical curative effects of zirconia al-ceramic and porcelain fused to metal crowns in the repair of dental defects. METHODS： Twenty patients （120 teeth） scheduled for crown lengthening＋crown repair were enroled, including 7 males and 13 females, aged 19-60 years, and then randomly divided into observation group and control group. In the observation group, zirconia al-ceramic crown was used; and in the control group, porcelain fused to metal crown was used. Periodontal conditions, coordination of gingival margin height, and crown edge concealment were compared between the two groups at 8 months after restoration. RESULTS AND CONCLUSION： At 8 months after restoration, the observation group had better periodontal conditions and crown edge concealment than the control group （P 〈 0.05）, and the time of wearing a temporary crown and recovery time were also shorter in the observation group than the control group （P 〈 0.05）. There was no significant difference in the gingival margin height between the two groups at 1, 3 and 8 months after restoration. These findings indicate that after crown lengthening, the zirconia al-ceramic restoration for dental defect repair has better therapeutic effects than the porcelain fused to metal restoration, which can have better marginal adaptation, improve crown edge concealment, reduce gingivitis, decrease plaque adhesion ability, and preferably maintain the periodontal health.

关 键 词：生物材料 口腔生物材料 氧化锆全瓷冠 金属烤瓷冠 牙冠延长术 临床疗效 牙周状况 

分 类 号：R318[医药卫生—生物医学工程]