Hsu J W, Tsai P L, Hsiao T H, Chang H P, Lin L M, Liu K M, Yu H S, Ferguson D
Graduate Research Institute of Medicine, Kaohsiung Medical College, Taiwan.
Aust Dent J. 1999 Mar;44(1):40-5. doi: 10.1111/j.1834-7819.1999.tb00534.x.
Chinese populations differ from Caucasoids by having a high prevalence of shovel trait and a low prevalence of Carabelli's trait. This study was conducted to investigate the association between the shovel and the Carabelli's traits in a Chinese population. The research design investigated a Chinese population that resides in southern Taiwan. The ancestors of this Chinese population migrated to Taiwan from mainland China, mainly from Fukien and Kwangtung. The effects of sex and age on Carabelli's trait were controlled in this investigation, as was the association between tooth size and Carabelli's trait. Results show that males were more likely to have Carabelli's trait expressed on teeth than females. The buccolingual diameter of Carabelli's trait teeth was larger than that of teeth without the trait. After controlling for sex, age, and tooth size, the existence of the shovel trait increased the likelihood of having Carabelli's trait by a factor of five and a half, which is a significant effect.
中国人群与高加索人不同，铲形特征的患病率较高，而卡氏特征的患病率较低。本研究旨在调查中国人群中铲形特征与卡氏特征之间的关联。研究设计调查了居住在台湾南部的中国人群。该中国人群的祖先从中国大陆迁移到台湾，主要来自福建和广东。在这项调查中，控制了性别和年龄对卡氏特征的影响，以及牙齿大小与卡氏特征之间的关联。结果表明，男性比女性更有可能在牙齿上表现出卡氏特征。有卡氏特征的牙齿的颊舌径大于没有该特征的牙齿。在控制了性别、年龄和牙齿大小后，铲形特征的存在使具有卡氏特征的可能性增加了五点五倍，这是一个显著的影响。
