金属烤瓷修复体的临床应用

①目的 探讨采用金属烤瓷修复体修复缺失牙、残根和残冠牙的效果。②方法 基牙预备采用唇颊侧的肩台或斜面肩台，使修复体与基牙密切接触，防止产生不洁性牙龈炎或继发龋齿。对残根残冠的修复采用金属铸造桩核或带钉光敏固化桩核，恢复基牙预备体所需要的形态，然后进行烤瓷冠桥修复。根据牙龈和牙周的情况，进行消炎或牙周手术处理。③结果 共为750例病人制作修复体830件，其中前牙冠470件，后牙冠215件，前牙桥86件，后牙桥59件。对修复时间在半年以上的125例病人进行了复查，修复体边缘与牙体密合或比较密合而无龈炎者99例，不密合而出现龈炎者15例，瓷面部分脱落者ll例。④结论 金属烤瓷修复体是一种实用的修复方式，可以满足大多数缺失牙、残根和残冠牙的修复需要。

CLINICAL APPLICATION OF METAL PORCELAIN RESTORATION

Objective To evaluate the clinical efficacy of metal porcelain restoration in the repair of teeth edentia and residual roots. Methods Labio-bucco and ram shoulders were applied to prepare abutment to prevent gingivitis and recurrent caries. Before residual root restoration, metal casting dowel and pin light-cured dowel were used to restore the abutment form. Anti-inflammation and periodontal operations were adopted, if needed, to prevent gingival and periodontal lesion. Results Eight hundred and thirty PFMs were made for 750 patients, including 470 anterior and 215 posterior crowns, 86 anterior and 59 posterior pontics. Six months after restoration, 125 patients were reviewed. The results showed marginal fitting well in 99 cases, gingivitis in 15 and porcelain crack in 11. Conclusion Metal porcelain restoration is practical and effective for most of teeth edentia and residual roots.