태국 북부 아카족 및 라후족의 위턱 앞니 형태

Abstract

In order to clarify the genetic relationship between Korens and Akha, Lahu native tribes aiound the mountain area in Northern Thailand, authors examined the metric and non-metric mophological variations of the maxillary anterior teeth, the subjects were 54 in Akha tribe(25 males, 29 female) and 114 in Lahu tribe( 57 males, 57 females), and their gaes were 20 to 65(mean age 34) The prevalence of the shovel-shaped incisor in maxillary anterior teeth was 3cases in Akha female and 8 cases in Lahu tribe(4 males, 4 females) And the supernumernary tooth located beween the right and left maxillary central incisors was observed in 2 cases, the congenital missings of the maxillary canine were in 3 cases (1 Akha,2 Lahu tribe). The maximal mesioㆍdistal diameters of the maxillary anterior teeth in Akhk and Lahu tribes showed no discrepancy wth regard to those of Koreans and the dental measurements of the male were larger than the female(p＜0.05). the dental measurements of the Lahu tribe were mors Closer to korean than those of Akha Tribe were, Especially, the mean mesio-distal diameter of the maxillary anterior teeth in Lahu female had no difference to korean adult female(p＜0.05). On the basis of the above results, authors thought that the anthropological similarity to koreans was higher in Lahu than Akha tribe with respect to the dentition, but the further anthropological studies such as the height, body proportion, and finger print should be needed.