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目的探讨IPS EmpressⅡ铸瓷贴面用于前牙美容修复的近远期临床疗效。方法将在我院行美容修复患者46例(118颗牙)随机分为2组,治疗组(23例59颗)和对照组(23例59颗)分别采用IPS EmpressⅡ铸瓷贴面和传统的钴铬合金的烤瓷冠修复。于修复后1周复诊并调查患者满意度,并对患者进行3年随访,对修复体完整性、边缘适合度、牙龈健康状况、牙敏感症状及颜色匹配等进行评估。结果治疗组在修复体颜色、外形及舒适度方面的满意度均显著高于对照组(P<0.05);治疗后6个月,治疗组的边缘适合度、牙敏感症状及颜色匹配均显著优于对照组(P<0.05);而治疗后3年,边缘适合度、牙龈健康状况及颜色匹配均显著优于对照组(P<0.05)。结论 IPS EmpressⅡ铸瓷贴面可最大限度保存牙体组织,具有良好的美学及生物学特性,是一种理想的前牙美容修复方法。
Objective To investigate the short-term and long-term clinical efficacy of IPS Empress II cast-iron veneer for cosmetic restoration of anterior teeth. Methods Forty-six patients (118 teeth) with cosmetic repair were randomly divided into two groups. The treatment group (23 cases, 59 cases) and the control group (23 cases, 59 cases) were treated with IPS Empress II porcelain veneer and conventional Cobalt-chromium ceramic crown repair. Patient satisfaction was evaluated one week after repair and the patients were followed up for 3 years to evaluate the integrity, marginal fit, gum health, tooth sensitivity and color matching. Results The satisfaction of the treatment group in the color, shape and comfort of the prosthesis was significantly higher than that of the control group (P <0.05). At 6 months after treatment, the marginal fitness, tooth sensitivity and color matching of the treatment group were significantly better (P <0.05). After 3 years of treatment, the marginal fitness, gum health and color matching were significantly better than the control group (P <0.05). Conclusion The IPS Empress II porcelain veneer can preserve the maximal tooth structure and has good esthetic and biological characteristics. It is an ideal cosmetic method for the restoration of anterior teeth.