CORRELATION BETWEEN FACIAL GROWTH PATTERNS ANDINCLUDED THIRD MOLARS

Abstract

Objective: This study analyzes the prevalence of facial growth patterns and their possible correlation with included third molars. Material and Methods: The sample consisted of 40 patients from a file database of 800 patients, referred to a dental radiology center. The following inclusion criteria were considered: 19 years or older; records including a lateral teleradiograph and a panoramic radiograph obtained at the same time; presence of at least one included third molar with completely closed apexes; presence of all teeth on the hemi-arch of the included tooth; no history of orthodontic treatment. Teleradiographs were used for cephalometric analysis considering the angles FMA, SN.GoMe and SN.Gn, interpreted according to the USP standard analysis and compared with pre-established standards for the classification of facial patterns (brachycephalic, mesocephalic or dolichocephalic). The presence and distribution of third molars were observed using panoramic radiographs. The correlations between the angles of the facial patterns and the presence of included third molars was analyzed using Spearman's test (p<0.05). Conclusion: The patients’ profiles identified were as follows: 40% dolichocephalic, 35% mesocephalic and 25% brachycephalic. No significant correlation was found between the facial patterns – for all the three angles analyzed – and the number of included third molars. DESCRIPTORS: Tooth, Unerupted. Molar. Orthodontics.