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《Beijing Medical Journal》 2007-03
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Clinical evaluation of the efficacy of restoring small class Ⅰ cavities by Dyract AP

WU Xiao-xia,LIU Jing-ming(Department of Stomatology,Beijing Tongren Hospital,Beijing 100730)  
Objective to evaluate the effectiveness of restoring occlusal small Class I cavities in non stress bearing areas by Dyract AP. Methods Fifty cases of 109 molars with occlusal small Class I cavities were restored by Dyract AP. All cavities were on non stress bearing areas. Evaluation was made with the modified USPHS evaluation criterion after restoration for 1 and 2 years. Results None of the restorations was lost and the retention rate was 100% at the end of 1 year. After 2 years,one restoration was lost and one had to be replaced due to caries adjacent to its margin,the retention rate was 98.1%. Other aspects were clinically acceptable. Conclusions Dyract AP is a kind of ideal material for repairing occlusal small Class I cavities of molars.
【CateGory Index】: R783.3
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