Cephalometric features of Long Face Pattern: concerns about sexual dimorphism

Leopoldino CAPELOZZA FILHO, Mauricio de Almeida CARDOSO, Tien LI AN, Francisco Antonio BERTOZ

Aim: The purpose of this study was to evaluate the presence of different cephalometric characteristics between genders with Long Face Pattern. Methods: a total of 73 lateral cephalometric radiographs were evaluated, with 34 Long Face Pattern and 39 Class I Pattern (control) subjects, sampled with basis on the facial morphology, regardless the sagital occlusal relationships. Facial growth pattern, anterior and posterior facial heights, inter-jaw relationship and dentoskeletal relationship were evaluated. Results: It was observed sexual dimorphism in Class I Pattern subjects (p<0.001) in the effective length of maxilla and mandible, as well as the facial heights. Also, significant differences were observed among facial height ratios and the distances from incisors and molars to palatal and mandibular plane. For Long Face Pattern subjects, these cephalometric variables showed no sexual dimorphism (p>0.05), except the effective length of maxilla and mandible, lower anterior and posterior facial heights (p<0.05). Conclusions: It was concluded that sexual dimorphism was evident in Class I Pattern subjects due to the skeletal size differences. However, in Long Face Pattern subjects, similarity was observed between genders, showing that the skeletal deformity was more severe in female subjects, enough to achieve skeletal size comparable to those of male subjects.

Keywords: Cephalometry. Deformities. Dimorphism. Long Face Pattern.

Sunday, May 05, 2024 16:37