Ocena wieku zębowego na zdjęciach ortopantomograficznych
The Demirjian system, which was first described in 1973, is one of the most extensively useful systems for determining the dental age. The system, which was established based on a sample drawn from French-Canadian children, comprises of eight classification stages, which span from a crown and the root configuration, to the apex closing of the seven selected left lasting mandibular teeth. The scores of each phase are recorded, and a summation of the score is established, and it is further utilized in evaluating the subject’s dental development. The dental age is achieved by converting the dental maturity score using the available percentile curves and tables that support the translation of such scores into dental age. The variation between the ages is then used to determine the delay or advancement in the subject’s dental maturity. Bagherpour and others (11) state that the Demirjian method has been extensively used in estimating the advancements or delays in dental age; however, each sample population presents different outcomes indicating a need to employ population specific dental maturity scores.
Age assessment is often essential for odontology and medical reasons. It is more preferable then the projected age is as precise as possible (12). Precision in this sense can be termed as the degree to which the difference between the ages is close to zero. The concept of dental age as an indicator of maturity is broadly acknowledged since it closely compares with the chronological age and other [...]
