AIM：To observe the clinical effect of porcelain veneer in treating discolored teeth. METHODS:116 and 106 discolored teeth were treated with porcelain veneer and composite veneer respectively, and compare their effects to each other. Clinical effect of color、appearance、function、sensation were checked after two years. RESULTS: The effet of porcelain veneer restoration is best in 84 cases(72.4%), better in 32 cases (27.60%). The effect of composite veneer restoration is best in 66 cases(62.26%), better in 25 cases(23.58%), failure in 15 cases(14.15%). CONCLUSION: The clinical effect of discolored teeth treated with porcelain veneer is better than that with composite veneer. But the long-term effect of porcelain veneer needs further research.%目的：观察烤瓷贴面治疗变色牙的临床疗效。方法：应用烤瓷贴面法治疗116个变色牙；并以复合树脂贴面治疗106个变色牙作对照。跟踪观察2年，比较其临床效果。结果：按颜色、外形、功能、感觉进行检查，用烤瓷贴面治疗者2年疗效优84牙(72.4%)，一般32牙(27.6%)。用复合树脂治疗者2年疗效优66牙(62.26%)，一般25牙(23.58%)，失败15牙(14.15%)。结论：烤瓷贴面治疗变色牙的2年临床疗效较复合树脂贴面好，但远期疗效有待进一步研究。
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