摘要
目的 采用改良的USPHS系统评估两种新材料———光凝单组份复合体 (Dyract)和光固化玻璃离子水门汀 (3M Vitremer)修复楔状缺损 (简称楔缺 )牙齿的临床疗效。方法 门诊用Dyract修复楔缺牙 317颗 ,用 3M Vitremer修复楔缺牙 192颗 ,用改良USPHS系统对 1年及 2年的随访结果进行评估。结果 Dyract组 1年成功率 91 17% ,2年成功率 88 6 4% ;3M Vitremer组 1年成功率 81 77% ,2年成功率 80 2 1%。两组成功率相比差异有显著性 ,但按USPHS评估系统逐条分析则发现二组仅在变色比率方面有差异 ,其他项目均无差异。结论 楔缺程度影响成功率。本项研究所用的两种材料修复楔缺成功率高 ,优点多。
Objective To evaluate clinically two new materials (Dyract Cem and 3M Vitremer) for restoration of dental wedge shaped defects with modified USPHS evaluation criterion Methods 317 teeth with wedge shaped defects were restored by Dyract Cem and 192 teeth by 3M Vitremer clinically The 1 year and 2 year follow up results were evaluated with modified USPHS evaluation criterion Results 1 year successful rate was 91 17% in Dyract Cem group and 81 77% in 3M Vitremer group,and 2 years successful rates were 88 64% and 80 21% separately The differences of successful rates between the two groups are significant statistically,but there are no significant differences in main indexes except stain rate when analysed item by item with USPHS evaluation criterion Successful rates were related with the abrasive degree of the restored teeth Conclusions Both Dyract Cem and 3M Vitremer have high successful rates and a lot of advantages for restoration of dental wedge shaped defects The modified USPHS evaluation criterion is a valuable method for clinical evaluation
出处
《中华口腔医学杂志》
CAS
CSCD
北大核心
2000年第1期52-54,共3页
Chinese Journal of Stomatology
