Korean J Phys Anthropol.
1999 Dec;12(2):223-234.
Metric and Non-metric Traits of the Teeth in Past and Present Koreans
- Affiliations
-
- 1Division of Anatomy, Department of Oral Biology, College of Dentistry, Yonsei University, Korea.
- 2Archeology and Art History, Choongbuk National University, Korea.
- 3Department of Oral Medicine, College of Dentistry, College of Dentistry, Yonsei University, Korea.
- 4Department of Dental Radiology, College of Dentistry, College of Dentistry, Yonsei University, Korea.
- 5Department of Anatomy, College of Medicine, Hanyang University, Korea.
- 6Department of Anatomy, College of Medicine, Konkuk University, Korea.
- 7Department of Anatomy, College of Medicine, Catholic University, Korea.
- 8Department of Physical Education, Korean National University of Physical Education, Korea.
Abstract
- Teeth play an important role in mastication and phonation as well as in esthetics. Since metric and non-metric characteristics of teeth can be used in anthropological comparison, archeology and identification, they are very important in physical anthropology, archeology and forensic odontology. However, this subject has rarely been studied in Koreans and therefore data on the anthropological characteristics are scarce. Researchers have measured 5 factors on each tooth and 9 non-metric characteristics of 1085 teeth collected from Gaya, Korea and Chosun people and 1397 teeth collected from the present Koreans (both female and male). Metric and non-metric traits of the teeth were compared in past and present Koreans. Comparing the measurement of the teeth in past and present Koreans, no difference in the faciolingual diameter was seen while slight difference was seen in the mesiodistal diameter of past and present Koreans. Non-metric traits of Koreans showed that 96.4% of past Koreans and 94.2% of present Koreans had shoveling in the maxillary central incisior while 93.1% of past Koreans and 90.6% of present Koreans had shoveling in the maxillary lateral incisor. Therefore shoveling was present in a higher rate in the past Koreans. The result on the comparison of the lingual cusp number on mandibular second premolars, showed that while past Koreans had 1 (48.0%) or 2 (52.0%) lingual cusps, present Koreans had 1 (52.3%), 2 (46.7%) or 3 (1.0%) lingual cusps. The Terra's tubercle was seen on the mesial surface in 53.7% of maxillary first premolar in the present Koreans and 48.7% of maxillary second premolar showed no tubercle. Meanwhile, past Koreans showed a higher rate of Terra's tubercle than present Koreans. Frequence of Carabelli's tubercle in the maxillary first molar was 18.4% in past Koreans and 36.2% in present Koreans. The most common form of occlusal groove pattern in the maxillary first molar was '4' (94.3% in past Koreans, 94.3% in present Koreans) and in the maxillary second molar was '4-' (40.5% in past Koreans, 76.5% in present Koreans). In both the past and present Koreans, The 'Y5' pattern of occlusal groove pattern was most common in the mandibular first molar and '+4' pattern in the mandibular second molar.
Keyword
- Full Text Links
-
- Actions
-
Cited
- CITED
-
- Close
- Share
-
- Similar articles
-
- Non-metric Dental Traits in Koreans and Its Racial Differences
- Non-metric Traits of Korean Mandibles
- Morphology of the Maxillary Anterior Teeth in Akha, Lahu Tribes in Northern Thailand
- A note on the distance distribution paradigm for Mosaab-metric to process segmented genomes of influenza virus
- Sex Estimation Using Humerus Volume of CT Images in Korean Population: A Metric Study
