Objective To evaluate the clinical effect of using porcelain laminate veneer to restore defected anterior tooth with dentin exposure. Methods Ceramic veneers was applied to 46 teeth of 31 patients whose anterior tooth suffer dental defect with dentin exposure resulted from truma and decay. The 46 tooth were reviewed after luting in 3 months and 6 months, 12 months and 24 months. Modified Ryge standard (revised standard of American public health association)was applied to evaluate the clinical curative effect. Results During 2 years of review, 44 ceramic veneers were intact. One veneer was partly fractured after one years and 1 veneers falling out,and Slight gingivitis was found in 2 tooth.Margine accurancy was over 97％ after two years review, periodontal health,and porcelain veneer keep stable in color, Secondary caries has only been found in individual abutment.No obvious absorption of alveolar bone around dental, prosthodontics effect is satisfied. Conclusion ceramic veneer prosthesis is a reliable and ideal dental aesthetic Prosthesis applied to restore defected anterior tooth with dentin exposure.%目的:评价铸瓷贴面修复牙本质暴露的缺损前牙的临床效果.方法:31例因外伤、龋坏等原因导致的伴牙本质暴露的前牙缺损患者,使用46个铸瓷贴面进行修复,瓷贴面修复后3个月、6个月、1年和2年复查,应用改良Ryge指标(美国公共健康协会的修正指标)分析评价其临床疗效.结果:2年的临床复查结果显示,46个瓷贴面完整存在,有1例发生折裂,1例出现脱落,2例瓷贴面修复的基牙在复查时有轻度的牙龈炎症.97％以上的铸瓷贴面具有良好的边缘适合性,牙周健康,只有个别基牙出现继发龋,患牙周围牙槽骨无吸收,修复效果满意.结论:对于伴牙本质暴露的前牙缺损进行铸瓷贴面修复是一种可行的修复方法,且具有良好的美观效果.
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