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本研究目的是探讨二氧化锆全瓷冠修复上前牙缺损的远期效果。选择2012年1月至2015年1月来我院进行治疗的上前牙缺损患者120例,按照随机数字表法将其分为试验组和对照组。试验组患者采用二氧化锆全瓷冠修复,对照组患者采用金属烤瓷冠修复。比较修复半年和3年后两组患者临床疗效,评价指标包括边缘密合度、解剖外形、修复体折裂和颜色、龈缘着色和牙龈状况。对比修复半年和3年后两组患者修复成功率。半年后,试验组患者修复体颜色和牙龈状况等级显著高于对照组患者(p<0.05)。3年后,试验组患者修复体折裂、修复体颜色和牙龈状况等级显著高于对照组患者(p<0.05)。修复后3年试验组患者的修复成功率显著高于对照组患者(p<0.05)。采用二氧化锆全瓷冠对上前牙损伤患者进行修复,疗效确切持久,远期成功率高,值得临床推广。
The purpose of this study is to investigate the long-term effect of zirconium ceramic crowns in repairing anterior teeth defects. One hundred and twenty cases of anterior teeth defect who were treated in our hospital from January 2012 to January 2015 were randomly divided into experimental group and control group. Patients in the test group were treated with zirconia ceramic crowns, while those in the control group were repaired with metal porcelain crowns. The clinical outcomes of the two groups were compared after six months and three years of repair. The evaluation indexes included marginal adhesion, anatomic appearance, fracture and color of prosthesis, gingival coloration and gingival condition. The repair success rate was compared between two groups after six months and three years. Six months later, the color and gingival status of the prosthesis in the test group were significantly higher than those in the control group (p <0.05). Three years later, the test group fractured the prosthesis, the prosthesis color and the gingival condition were significantly higher than the control group (p <0.05). The repair success rate of the experimental group was significantly higher than that of the control group after 3 years of repair (p <0.05). Zirconia all-ceramic crowns on the anterior tooth injury patients for repair, the exact effect of lasting long-term success rate is high, worthy of clinical promotion.