Female hormones fluctuation and chewing movement of patients with disc displacement

Authors

  • Jonas Alves Oliveira Piracicaba Dental School, State University of Campinas (UNICAMP), Piracicaba, SP
  • Thaís Marques Simek Vega Gonçalves Piracicaba Dental School, State University of Campinas (UNICAMP), Piracicaba, SP
  • Larissa Soares Reis Vilanova Piracicaba Dental School, State University of Campinas (UNICAMP), Piracicaba, SP
  • Glaucia Maria Bovi Ambrosano Piracicaba Dental School, State University of Campinas (UNICAMP), Piracicaba, SP
  • Renata Cunha Matheus Rodrigues Garcia Piracicaba Dental School, State University of Campinas (UNICAMP), Piracicaba, SP

Keywords:

Mastication, jaw movements, temporomandibular joint disc, menstrual cycle

Abstract

Purpose: This study aimed to verify the influence of hormonal fluctuations on chewing movement in women with disc displacement (DD). Methods: Fourteen women with DD taking oral contraceptives (OC); 12 DD-free controls taking OC; 12 normally cycling women with DD; and 14 DD-free normally cycling women were included. The Research Diagnostic Criteria for Temporomandibular Disorders diagnosed DD, and subjects without pain were selected. Chewing movements were recorded using a kinesiograph. Dependent variables were: vertical, lateral, and anterior-posterior amplitudes (mm), opening and closing velocity (mm/s), which was evaluated in 4 phases of 3 menstrual cycles, identified by ovulation test. Data were submitted to Mauchly's sphericity test, Proc Mixed for repeated measures, and Tukey-Kramer test (P ≤ 0.05). Results: Comparisons among menstrual cycle phases showed no differences in vertical (P = 0.25), lateral (P = 0.12), and anterior-posterior amplitudes (P = 0.61); as well as opening (P = 0.57) or closing velocity (P = 0.73). The OC use or presence of DD did not influence the variables (P > 0.05). Conclusion: Hormonal fluctuation did not influence chewing mandibular movement of women with DD.

Author Biographies

Jonas Alves Oliveira, Piracicaba Dental School, State University of Campinas (UNICAMP), Piracicaba, SP

Graduate student, Department of Prosthodontics and Periodontology, Piracicaba Dental School, State University of Campinas (UNICAMP)

Thaís Marques Simek Vega Gonçalves, Piracicaba Dental School, State University of Campinas (UNICAMP), Piracicaba, SP

Graduate student, Department of Prosthodontics and Periodontology, Piracicaba Dental School, State University of Campinas (UNICAMP)

Larissa Soares Reis Vilanova, Piracicaba Dental School, State University of Campinas (UNICAMP), Piracicaba, SP

Graduate student, Department of Prosthodontics and Periodontology, Piracicaba Dental School, State University of Campinas (UNICAMP)

Glaucia Maria Bovi Ambrosano, Piracicaba Dental School, State University of Campinas (UNICAMP), Piracicaba, SP

Professor, Department of Social Dentistry, Piracicaba Dental School, State University of Campinas (UNICAMP)

Renata Cunha Matheus Rodrigues Garcia, Piracicaba Dental School, State University of Campinas (UNICAMP), Piracicaba, SP

Professor, Department of Prosthodontics and Periodontology, Piracicaba Dental School, State University of Campinas (UNICAMP)

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Published

2012-03-21

Issue

Vol. 27 No. 1 (2012)

Section

Original Article

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