Methods of evaluation of mandible posterior segment

Authors

  • Haroldo Amorin Almeida Department of Orthodontics, University of Campinas
  • Maria Helena Castro Almeida Department of Orthodontics, University of Campinas
  • João Sarmento Pereira-Neto Department of Orthodontics, University of Campinas
  • Maria Beatriz Borges Araújo Department of Orthodontics, University of Campinas
  • Stenyo Wanderley Tavares Department of Orthodontics, University of Campinas
  • Fábio Lourenço Romano Department of Orthodontics, University of Campinas

DOI:

https://doi.org/10.20396/bjos.v3i9.8641747

Keywords:

Orthodontics. Cephalometric. Diagnostic

Abstract

The aim of this research was to compare three methods to evaluate the availability of existent space in the mandible posterior segment; the methods are the Merrifield’s (1986), Ricketts’ (1976) and Richardson’s (1992). Sixty 60 teleradiographs in lateral pattern, from head, belonging to 60 Brazilian leucoderm subjects were evaluated. The age range from 9 to 19 years, all having a mal-occlusion of Class II, division 1, equally separated as for the gender (being 30 of male gender and 30 of female gender). It was concluded: Evidence of growing in the mandible arch posterior segment in the age range studied, with mean values of 10,21 mm for the Merrifield, 11,21 mm for the Richardson and 17,84 mm for the Ricketts methods. We have concluded that irrespective of the evaluated method, it was verified that the female gender has a more precocious growing (12,17 mm) as compared to the male gender (8,81 mm), in the ages 9 to 12. In the correlation between the employed methods, there was no a statistical difference among themselves by the t test, in the level of 1% (p £ 0,01).

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Author Biographies

Haroldo Amorin Almeida, Department of Orthodontics, University of Campinas

bachelor's at Odontologia from Universidade Federal do Pará (1992), master's at Odontology from Universidade Estadual de Campinas (1999) and doctorate at Odontology from Universidade Estadual de Campinas (2002). Has experience in Odontology, acting on the following subjects: ortodontia, cefalometria, maloclusão, tratamento ortodôntico and bráquetes.

Maria Helena Castro Almeida, Department of Orthodontics, University of Campinas

Has graduation at Odontologia by Pontifícia Universidade Católica de Campinas (1957) , Ph.D. at Ortodontia [Piracicaba] by Universidade Estadual de Campinas (1976) , aperfeicoamento at Edgewise by Charles H Tweed International Foundation (2001) , aperfeicoamento at Edgewise by Charles H Tweed International Foundation (1990) and aperfeicoamento at Edgewise by Charles H Tweed International Foundation (1970) . Currently is Professora Doutora of Centro de Pesquisas Odontológicas São Leopoldo Mandic. Has experience in the area of Odontology , with emphasis on Ortodontia. Focused, mainly, in the subjects: Ortodontia, Diagrama ortodôntico, arcos dentários assimétricos. 

João Sarmento Pereira-Neto, Department of Orthodontics, University of Campinas

Possui Graduação em Odontologia pela Universidade Federal do Piauí - UFPi (1982); Especialista em Radiologia Oral pela Universidade Estadual do Rio de Janeiro - UERJ (1985); Mestre em Ortodontia pela Universidade Estadual de Campinas (1997), Doutor em Ortodontia pela UNICAMP (2001), Livre-Docente pela UNICAMP.

Maria Beatriz Borges Araújo, Department of Orthodontics, University of Campinas

Possui graduação em Odontologia pela Universidade Estadual de Campinas (1978), mestrado em Ortodontia [Piracicaba] pela Universidade Estadual de Campinas (1982) e doutorado em Ortodontia [Piracicaba] pela Universidade Estadual de Campinas (1994). Com curso de Aperfeiçoamento em Ortodontia na Tweed Foundation-Tucson -Arizona É professora Doutora do Curso de Graduaçao em Odontologia da FOP-Unicamp, dos cursos de especialização e atualisão em Ortodontia da FOP-UNICAMP;responsável pela área de Ortodontia da FOP Unicamp, e Coordenadora dos Cursos de Especializaçao em Ortodontia da FOP-UNICAMP

Stenyo Wanderley Tavares, Department of Orthodontics, University of Campinas

Graduate at Faculdade de Odontologia from Universidade de Pernambuco (1997), master's at Odontology from Universidade Estadual de Campinas (2002) and ph.d. at Odontology from Universidade Estadual de Campinas (2006). Has experience in Odontology, focusing on Orthodontics, acting on the following subjects: ortodontia, resitência ao cisalhamento, forças leves, diagnóstico and colagem.

Fábio Lourenço Romano, Department of Orthodontics, University of Campinas

Graduate at Odontologia from Universidade Federal de Alfenas (1994) and master's at Odontology from Universidade Estadual de Campinas (2003). Has experience in Odontology, focusing on Orthodontics, acting on the following subjects: ortodontia, resistência ao cisalhamento, colagem, bráquetes and descolagem.

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Published

2015-11-16

How to Cite

1.
Almeida HA, Almeida MHC, Pereira-Neto JS, Araújo MBB, Tavares SW, Romano FL. Methods of evaluation of mandible posterior segment. Braz. J. Oral Sci. [Internet]. 2015 Nov. 16 [cited 2022 Nov. 29];3(9):454-7. Available from: https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641747

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