Cementai Annulation as an Age Criterion in the Common Marmoset ( Callithrix jacchus)

Publisher Website
Google Scholar
Abstract
Teeth from 18 marmosets, seven months to 5.8 years of age, were studied histologically. A minimum of one dark and one light band comprised one cementai annulation. Age was estimated by counting the number of annulations and adding four months to premolar and eight months to canine teeth for tooth development. Cementai annulations were most consistent near the gingival border on the labial aspect of the tooth. The method will be valuable in estimating the ages of marmosets and other nonhuman primates.