重度着色前牙列金属烤瓷修复后美容效果的临床观察

目的通过重度变色前牙列烤瓷熔附金属冠修复后的临床观察，探讨重度变色牙的修复方法及烤瓷熔附金属冠修复前牙及前磨牙的美容效果。方法采用烤瓷熔附金属全冠的修复方式，对11例病人，共140颗前牙及前磨牙进行了美容修复，参考美国公共健康协会的牙齿美容修正标准，对烤瓷熔附金属全冠修复后1个月、3个月、6个月牙龈的SBI、GI、BOP、PD进行临床检查，对烤瓷熔附金属全冠修复中、重度变色牙进行美容效果评价。结果经过对修复后的前牙进行1个月、3个月、6个月临床随访检查，发现金属烤瓷冠修复后1个月、3个月的SBI、GBI、PD无明显变化；6个月时经方差分析后发现与1个月时有差异。但经过3次检查的烤瓷全冠的边缘密合度全部优良，修复体外形及色泽美观与面型协调；烤瓷熔附金属全冠周围的边缘龈及龈乳头无明显炎症和变色，仅有3例发现牙龈轻度萎缩。结论金属烤瓷冠在修复重度着色牙后，在生物相容性及牙齿美容方面表现出令人满意的效果，是修复中、重度着色前牙理想的修复方法之一。

The clinical observation of PFM repairation to severe disclored teeth

Objective Through the clinical observation of PFM to repair severe discolored teeth. Discussion severe discolored teeth repair methods and the cosmetic results that anterior and premolars the treatment of PFM crown.Methods PFM crown restoration methods used in the 11 patients, a total of 140 teeth a cosmetic repair. After repair one month, three month, six months of SBI, GBI, BOP, PD clinical observation and reference to the American Public Health Association that the standard of beauty for cosmetic dental evaluation. Results After a month, 3-month, 6-month clinical examination, PFM crowns a month, 3-month SBI, GBI, BOP, PD no significant change .At 6 months by the analysis of variance revealed with 1-month was difference. But the brink after three inspections of porcelain crown was good adaptation. The restoration pleasing in appearance and face coordination; Ceramic Crowns neck edge of the gums and gingival nipple no color change, only three cases found marginal gingival mild atrophy. Conclusion PFM to repair severe tooth discolored and the biocompatibility of dental beauty has shown satisfactory results. This method to repair severe tooth color is the ideal restoration one.