Vita In-Ceram Zirconia全瓷修复体临床效果评价

Clinical observation on all-ceramic restorations using Vita In-Ceram Zirconia glass-infiltrated ceramic

目的探讨VitaIn-Ceram Zirconia渗透陶瓷全瓷修复体的修复效果,为临床应用提供参考。方法对2008年3—5月广东省深圳牙科医疗中心门诊收治的59例接受全瓷修复的患者,共使用VitaIn-Ceram Zirconia渗透陶瓷全瓷修复体81件,其中上颌61件,下颌20件;前牙全冠44个,后牙全冠27个,前牙固定桥4个,后牙固定桥6个。通过3～24个月的观察,采用美国加利福尼亚牙科学会的质量评价体系对VitaIn-Ceram Zirconia渗透陶瓷前、后牙全冠与前、后牙固定桥修复进行临床效果评价。结果观察期间失访2例患者4件修复体,对剩余57例患者77件修复体的临床观察结果表明,VitaIn-Ceram Zirconia渗透陶瓷全冠具有良好的边缘密合性,色泽稳定,强度高,其失败率为0.030%。结论在严格选择适应证的前提下,VitaIn-Ceram Zirconia渗透陶瓷修复是一种效果良好的全瓷修复方式。

Objective To investigate the clinical effect of Vita In-Ceram Zirconia glass-infiltrated ceramic restorations,and to provide a reference for clinical application.Methods A total of 81 restorations（61 maxillary and 20 mandibular prostheses） made with Vita In-Ceram Zirconia glass-infiltrated ceramic were examined in 59 patients.There were 44 anterior tooth crowns,27 posterior tooth crowns,4 anterior fixed bridges and 6 posterior fixed bridges.Surface,color,anatomic form,and marginal integrity of restorations were assessed at 3 months,6 months,1 year and 2 years after cementation with the California Dental Association（CDA） quality assessment evaluation system.Results It showed that the marginal fitness,color stability and strength of crowns were considered to be satisfactory.Only 0.030 %（two crowns） were not acceptable.One posterior fixed bridge were not acceptable at 3-month visit;however,the fixed bridge were considered to be satisfactory.Conclusion With strict control of indications,it is possible to construct excellent all-ceramic prostheses with the Vita In-Ceram Zirconia glass-infiltrated ceramic system.