Gao X J
School of Stomatology, Beijing Medical University.
Zhonghua Kou Qiang Yi Xue Za Zhi. 1990 Jan;25(1):18-20, 61.
The dental caries in 280 pairs of like-sex twins (186 monozygotic, 94 dizygotic) were studied. Then, comparisons of variability of dental caries, missing and filled surface (DMFS), concordance, and correlation in the two types of twins were made. The heritability index (HI) was also calculated. There were less variance, higher concordance and higher correlation in monozygotic twins, but the results were not statistically significant. The HI of dental caries was 8.7% according to this study. It was suggested that environmental influence was dominant in caries initiation: whereas heredity was of little influence.
对280对同性双胞胎（186对同卵双胞胎，94对异卵双胞胎）的龋齿情况进行了研究。然后，对两种类型双胞胎的龋齿、缺失和填充牙面（DMFS）的变异性、一致性和相关性进行了比较。还计算了遗传度指数（HI）。同卵双胞胎的方差较小、一致性较高且相关性较高，但结果无统计学意义。根据本研究，龋齿的HI为8.7%。研究表明，在龋齿发生过程中环境影响占主导：而遗传影响很小。
