Dental age estimation methods among adults show changes related to aging. As with the Gustafson method, some consider multiple factors when assigning value to the equation for estimating the age of the individual. Others focus on a single variable, which is a matter of scientific disagreement in the literature on the subject. A varying number of tooth developmental stages exist among the methods that estimate dental age in children. The most widely used is Demirjian’s developmental scale, which recognizes eight different stages. The accent given by the DARLInG method to sex and ethnic specificity is an important contribution to the accuracy of age estimation. More recently, different forensic scenarios in which some teeth are missing can be solved using the Bedek et al. models which—unlike the Demirjian method—do not require the presence of all the mandibular teeth for accurate age estimation.