Biological age in a group of growing subjects

The aim of this research was to determine the interrelationships among chronological, dental and skeletal age in a group of developing subjects. A total of 117 Italian subjects, 54 males and 63 females, were analyzed. The age of the subjects measured ranged from 4.5 to 14 years. For each of them together with a radiographic and skeletal analysis, an accurate clinical-subjective evaluation in relation to the grade of body development was conducted. Dental age was calculated from panoramic radiographs according to methods described by Nolla (1960) and skeletal analysis was determinated by the Bjork-Grave-Brown classification (1972, 1976). It can be observed that there is a good interrelationships among the three parameters of age.