Sawyer D R, Kiely M L, Pyle M A
Department of Oral Diagnosis and Radiology, School of Dentistry, Case Western Reserve University, Cleveland, OH, USA.
Arch Oral Biol. 1998 May;43(5):417-20. doi: 10.1016/s0003-9969(98)00012-0.
The frequency of accessory mental foramina (AMF) was studied in four population groups: 20th century Asian Indians, African Americans and American Whites, and Pre-Columbian Nazca Indians. AMF were found less frequently in the American White and Asian Indian populations than in the other groups (American White, 1.4%; Asian Indian, 1.5%; African American, 5.7% and Nazca, 9.0%). The incidence of AMFs did not differ significantly between right- and left-hand sides. In certain ethnic groups, i.e., African American, AMF may occur more often in males. Additional studies with larger samples are needed to show whether AMFs are more common in males.
研究了四个群体中副颏孔（AMF）的出现频率：20世纪的亚洲印度人、非裔美国人、美国白人和前哥伦布时期的纳斯卡印第安人。在美国白人和亚洲印度人群体中发现AMF的频率低于其他群体（美国白人，1.4%；亚洲印度人，1.5%；非裔美国人，5.7%；纳斯卡人，9.0%）。AMF在右侧和左侧的发生率没有显著差异。在某些种族群体中，即非裔美国人，AMF在男性中可能更常见。需要更多样本的进一步研究来确定AMF在男性中是否更普遍。
