计算机辅助设计与制作纯钛烤瓷冠在后牙种植修复中的短期临床应用  

Evaluation of short-term clinical therapeutic efficiency of computer aided design and manufacturing titanium-ceramic-fixed partial dentures for implant-supported restoration in posterior region

作　　者：吴敏节[1] 邹立东[1] 许卫华[1] 张相皞[1] 

机构地区：[1]北京大学口腔医学院.口腔医院第二门诊部,北京100101

出　　处：《北京大学学报（医学版）》2013年第5期803-806,共4页Journal of Peking University:Health Sciences

摘　　要：目的：探讨计算机辅助设计与制作（computer aided design and computer aided manufacturing,CAD/CAM）纯钛烤瓷修复体在后牙区种植上部修复中的近期临床应用效果.方法：90例后牙缺失的患者（男性47例,女性43例,年龄30~62岁,平均年龄48.7岁）,共135个修复体,159个修复单元,植入种植体152颗.观察方法为临床检查,包括修复体完整度、边缘适合度、颜色匹配及牙龈健康情况等,修复后平均追踪51.9个月（24~80个月）.结果：所有患者在修复后至最后一次复查时未见种植体脱落,修复效果良好,患者满意.CAD/CAM纯钛烤瓷修复体崩瓷率为13.2%（21/159修复单元）,无基底冠或桥架折断,修复体松动7.4%（10/135修复体）,颜色达到良好的97.8%（132/135修复体）,边缘密合度达100%（152/152颗）.结论：CAD/ CAM纯钛烤瓷修复应用于后牙区种植上部修复的整体崩瓷率尚可接受,颜色稳定性较好,边缘密合度好,近期修复效果满意.Objective： To evaluate the clinical results of computer aided design and computer aided manufacturing （CAD/CAM） titanium-ceramic-fixed partial dentures for implant-supported restoration in posterior region. Methods： In the study, 90 patients （47 males, 43 females, and the mean age of 48.7 years ranging from 30 - 62 years） with posterior tooth missing underwent implant-supported porcelain fuse mental prostheses with CAD/CAM titanium-base. A total of 135 prostheses （159 prosthetic units） were fabricated, and 152 implants were placed. The evaluators examined the integrity of restoration, gingival health, color match and marginal adaptation. The mean follow-up time was 51.9 months （24 -80 months）. Results： No implant was lost during the loading time. All the patients were satisfied at the end of their treatment. The chipping rate of porcelain fuse mental prostheses with CAD/CAM titanium-base was 13.2% （21/159 prosthetic units）, No fracture of titanium-base was observed, and 7.4% （10/135） prostheses were found loosening. The authors rated 97.8% （132/135） prosthesis as good or better in regard to color match, 100% （152/152） implants had excellent marginal adaptation. Conclusion： The implant-supported titanium-based porcelain fuse mental prostheses with CAD/CAM show good marginal integrity and shade stability, with a clinically acceptable chipping rate, and these restorations can achieve success in the case of posterior tooth missing. Further study is needed to determine the long-term results.

关 键 词：金属烤瓷合金 钛 计算机辅助设计 牙种植 

分 类 号：R782.12[医药卫生—口腔医学]