The study found that, at best, the change/development into bone (ossification) of laryngeal structures as a measure of age provided only a general indication of age, such as juvenile, young adult, and middle-aged adult. The lack of high correlation between age and ossification of the laryngeal structures suggests that other variables known to influence bone, such as pathology, nutrition, hormones, mechanical stress, or genetics may be involved. Thus, as a precise measure of age, the ossification of laryngeal structures is an inaccurate measure of age. For this study, isolated human laryngeal structures were removed at autopsy from 104 individuals between the ages of 15 and 89, and then radiographically examined. The cricoid and individual regions of the thyroid cartilage were scored according to degree of ossification, and the relationship between age and degree of ossification were statistically determined. 4 tables, 3 figures, and 15 references