Permanent tooth calcification in chimpanzees (Pan troglodytes): Patterns and polymorphisms

✍ Scribed by Kuykendall, Kevin L.; Conroy, Glenn C.

• Publisher: John Wiley and Sons
• Year: 1996
• Tongue: English
• Weight: 80 KB
• Volume: 99
• Category: Article
• ISSN: 0002-9483
• DOI: 10.1002/(sici)1096-8644(199601)99:1<159::aid-ajpa9>3.0.co;2-w

✦ Synopsis

Tooth calcification is an important developmental marker for use in constructing models for early hominid life history, particularly for its application to the fossil record. As chimpanzees are commonly utilized in interspecific comparisons in such research, this study aims to improve available baseline data for tooth calcification patterns in chimpanzees (Pun troglo- dytes), and to quantify basic patterns and polymorphisms. We present a n analysis of developmental patterns for the left mandibular dentition (Il-M3) based on intraoral radiographs obtained from a cross-sectional sample of chimpanzees (58 males, 60 females) housed a t LEMSIP (NYU Medical Center) and Yerkes (Emory University). No significant differences with previous descriptions of the basic sequences of tooth calcification in chimpanzees were found, but variation in such patterns was documented for the first time. In the overall sequence, polymorphisms between the canine and the group (M, P, P,) reached significant levels. This is due to the relative delay in canine