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Original article

Study of the cephalometric features of Brazilian long face adolescents
Omar Gabriel da Silva Filho*, Gleisieli C. Petelinkar Baessa Cardoso**, Mauricio Cardoso***, Leopoldino Capelozza Filho****

Abstract Objective: To determine skeletal and dental cephalometric values for Brazilian long-faced adolescents. Methods: The sample comprised lateral cephalograms of 30 long-facedpatients, 17 females and 13 males, and 30 Pattern I adolescent patients, 15 males and 15 females, with permanent dentition, during adolescence. The features that characterized the long face pattern were defined clinically by subjective facial analysis. The following cephalometric landmarks were assessed: 1) Sagittal behavior of the apical bases (SNA, SNB, ANB, NAPog, Co-A, Co-Gn), 2) Verticalbehavior of the apical bases (SN.PP, SN.MP, gonial angle, TAFH, LAFH, MAFH, PFH, TAFHperp, LAFHperp), 3) Dentoalveolar behavior (1-PP, 6-PP, 1-MP, 6-MP, 1.PP, IMPA), and 4) Facial height ratios (LAFHPerp/TAFHPerp, LAFH/TAFH, MAFH/LAFH). Results and Conclusions: The vertical error of the long face pattern was concentrated in the lower third. The maxilla exhibited greater dentoalveolar height and themandible, given its more vertical morphology, displayed greater clockwise rotation. These morphological and spatial features entail sagittal and vertical skeletal changes as well as vertical dentoalveolar changes. The facial convexity angles were increased in the sagittal direction. Vertically, the total and lower anterior facial heights were increased. The dentoalveolar component was found to belonger.
Keywords: Face. Adolescent. Cranial circumference.

IntROduCtIOn From Michelangelo’s “Belvedere Torso” to the “Venus at the mirror,” by Velazquez, the sensitivity of the human eye has captured the beauty behind the sublime conception of human anatomy. The pursuit of the beauty concealed in

the face takes orthodontic diagnosis to a whole new level and highlights the daily exercise oforthodontists, who analyze the face to establish such diagnosis. The approach is technical, although it does encompass some subjectivity, since it is a qualitative, not quantitative analysis.

* MSc, Orthodontist, Hospital for Rehabilitation of Craniofacial Anomalies, University of São Paulo. ** Dentistry Graduate - Resident, Department of Corrective Orthodontics, Hospital for Rehabilitation ofCraniofacial Anomalies, University of São Paulo (HRAC/USP), Bauru/SP. *** PhD in Dentistry, Júlio de Mesquita Filho São Paulo State University (UNESP), Araçatuba/SP. Professor, Specialization and Master Program in Orthodontics, Sacred Heart University (USC), Bauru/SP. **** PhD in Oral Rehabilitation, area of Periodontics, School of Dentistry of Bauru, São Paulo University (FOB/USP), Bauru/SP.Coordinator, Specialization Program in Orthodontics, Society for the Social Promotion of Cleft Lip and Palate Patients (PROFIS), Bauru/SP.

Dental Press J Orthod

35.e1

2010 July-Aug;15(4):35.e1-12

Study of the cephalometric features of Brazilian long face adolescents

Nevertheless, orthodontists are concerned with the morphological—not transcendental—diagnosis involving the shape andproportions of the face. Hence the connotation of “morphological diagnosis”. In this light, there is nothing metaphysical about discovering beauty in the morphology of the face. This task consists in an analysis of the face, a morphological evaluation, both qualitative and subjective. The first concern of orthodontists lies in recognizing normality. In frontal view the normal face combines threeessential characteristics (Fig 1). The first is symmetry. The chin of a symmetrical face is centered on the face, i.e., collinear with the midsagittal plane. The second feature concerns proportionality between the facial thirds. The facial thirds should be similar, with a slight predominance of the lower third. And finally, as a consequence of the previous feature, competent lip seal. The latter’s...