Distance Between Mental Foramens: Analysis of Dry Skulls

  • Eduardo Moreschi CESUMAR
  • Ana Regina Casaroto UEM
  • Michel Zini Cesumar
  • Sônia Lucy Molinari Cesumar
  • Cleverson Luciano Trento Cesumar
  • Renato Zardetto Jr. Cesumar

Abstract

Edentulous span size (prosthetic span) directly affects diagnosis and prognosis in patients’ rehabilitation with bone-integrated implants since there is a direct relationship between span, number, length and diameter of implants. One of the indications in the edentulous jaw is protocol prostheses, initially defined by Branemark and colleagues, that only six implants within the mental foramen region support 12 fixed prosthetic elements. Current research evaluates the span between mental foramens of both mandibular antimeres. Experiment was approved by the Ethics Committee. A descriptive analysis was undertaken with 120 mandibles (60 without teeth and 60 with teeth) of individuals of both sexes, different age brackets and racial groups. Span between foramens was measured by high precision flexible millimeter scale. After the application of Student’s t test (p<0.05), results showed that there was no statistically significant difference between mean span between mandibles with teeth (54.25mm) or without teeth (54.43mm). Results also indicate that the loss of all mandibular teeth and the subsequent bone’s physiological re-absorption do not alter the transversal positioning of the mental foramens. Means suggest a maximum of six bone-integrated implants between the mental foramens, with a 3mm minimal span between implants and standard diameter of 4.1mm of prosthetic platform.

Author Biographies

Eduardo Moreschi, CESUMAR
Mestre em Farnacologia pela Universidade Estadual de Maringá - UEM. Docente de Odontologia do Centro Universitário de Maringá - CESUMAR. E-mail: eduardoctbmf@yahoo.com.br
Ana Regina Casaroto, UEM
Mestranda do Programa de Pós-Graduação em Ciências Farmacêuticas da Universidade Estadual de Maringá - UEM. E-mail: eduardoctbmf@yahoo.com.br
Michel Zini, Cesumar
Discente do Curso de Residência em CTBMF do Centro Universitário de Maringá - CESUMAR. E-mail: michelzini@gmail.com
Sônia Lucy Molinari, Cesumar
Docente do Departamento de Ciências Morfofisiológicas da Universidade Estadual de Maringá - UEM. E-mail: lucianokeko@hotmail.com
Cleverson Luciano Trento, Cesumar
Doutor em Diagnóstico Bucal pela Universidade Estadual Paulista – UNESP. Docente de Odontologia do Centro Universitário de Maringá - CESUMAR. E-mail: cleverson@cesumar.br
Renato Zardetto Jr., Cesumar
Especialista em Radiologia pela Universidade de São Paulo - USP. Docente de Odontologia do Centro Universitário de Maringá - CESUMAR. E-mail: rzjr_@hotmail.com
Published
2008-09-25
Section
Artigos Originais