Divine Proportion in edentulous subjects: assessment before and after complete dentures

  • João César Guimarães Henriques Faculdade de Odontologia UNESP São José dos Campos-SP
  • Carolina Bacci Costa UNESP
  • Evelise Ono Londrina State University
  • Edmundo Medici-Filho UNESP
  • Mari Eli Leonelli de Moraes UNESP
  • Julio Cezar de Melo Castilho UNESP
Keywords: Complete denture, x-rays, cephalometry

Abstract

Purpose - The aim of this study was to evaluate ratios between bone structures of the skull and the face of edentulous subjects, before and after prosthodontic treatment with complete dentures. Methods - New complete dentures were fabricated by conventional methods, and subjects (n= 30) were evaluated cephalometrically before and after the new prosthesis. Using the same cephalometric unit, standardized lateral cephalometric headfilms were made on each subject in two times: the first without the complete dentures, in the rest position of the mandible, and the second with the new one in place, in maximal intercuspation. The lateral cephalometric x-rays were digitized and analyzed using computer software Radiocef Studio 2 – Radiomemory (Belo Horizonte, Minas Gerais, Brazil). The means of 7 different ratios were statistically analysed by paired t-test and Student`s t-test, and compared with the golden number 1,618. Results - There were no statistically significant results in ratios Or-Me/Co-Go, Pog-Op/Or-Me and Pog-Op/Enp-Op, before and after prosthodontic treatment. The ratios Or-Me/Ena-Enp, Or-Me/N-Ena, Or-Me/Op-N and N-Me/Ena-Me were different statistically. Conclusion - The ratio N-Me/Ena-Me wich relates two important segments, the total anterior facial height and the lower anterior facial height, was closer to the golden number after news complete dentures.

Author Biography

João César Guimarães Henriques, Faculdade de Odontologia UNESP São José dos Campos-SP
Departamento de Diagnóstico e Cirurgia Área de Radiologia Odontológica
Published
2012-11-19
Section
Original Article