Hsu J W, Tsai P L, Hsiao T H, Chang H P, Lin L M, Liu K M, Yu H S, Ferguson D
Department of Anatomy, Kaohsiung Medical College, Taiwan, R.O.C.
J Forensic Sci. 1997 Sep;42(5):802-6.
Chinese and other Mongoloid 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 compare the association between the shovel and the Carabelli's traits between Chinese and aboriginal Mongoloid populations. The research is designed to sample randomly a Chinese population and an aboriginal population having low admixture with neighboring populations. The Mongoloid aboriginal group was from the Bunun tribe who resides in an isolated alpine area in Taiwan. The effects of sex and age on Carabelli's trait were controlled in this study, as was the association between tooth size and Carabelli's trait. Our results show that males had more Carabelli's trait expressed on teeth than females in both of these two Mongoloid populations. 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 significantly increased the likelihood of having Carabelli's trait, especially in Chinese, which implies another significant ethnic feature for Mongoloid identification.
中国人和其他蒙古人种群体与高加索人种的不同之处在于，铲形门齿特征的出现率较高，而卡氏尖特征的出现率较低。本研究旨在比较中国人与蒙古人种原住民群体中铲形门齿特征和卡氏尖特征之间的关联。该研究旨在随机抽取一个中国人群体和一个与相邻群体混血程度较低的原住民群体作为样本。蒙古人种原住民群体来自居住在台湾一个偏远山区的布农部落。本研究控制了性别和年龄对卡氏尖特征的影响，以及牙齿大小与卡氏尖特征之间的关联。我们的研究结果表明，在这两个人种群体中，男性牙齿上表达的卡氏尖特征比女性更多。有卡氏尖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、年龄和牙齿大小之后，铲形门齿特征的存在显著增加了出现卡氏尖特征的可能性，尤其是在中国人中，这意味着这是蒙古人种识别的另一个重要种族特征。
