Bite force and sleep quality in patients with bruxism before and after using a mandibular advancement device

Authors

  • Vivian Chiada Mainieri PUCRS
  • Aline Cristina Saueressig PUCRS
  • Simone Chaves Fagondes UFRGS
  • Ézio Teseo Mainieri UFRGS
  • Rosemary Sadami Arai Shinkai PUCRS
  • Márcio Lima Grossi PUCRS

Keywords:

Bite force, bruxism, mandibular advancement device

Abstract

Purpose: This study aimed to compare bite force and sleep quality in patients with bruxism before and after using a soft mandibular advancement device. Methods: Eighteen patients with bruxism attending the Occlusion Clinics of the PUCRS Dental School were selected according to the study eligibility criteria, examined according to the RDC/DTM protocol, and treated with a soft mandibular advancement device. Before the treatment and after 30 days the subjects were tested for: maximal bite force with a cross-arch force transducer placed in the first molar region, sleep quality assessed by means of the University of Toronto Sleep Assessment Questionnaire (SAQ), and number of masseter muscle contractions during sleep measured with the adhesive BiteStrip®. Data were analyzed by Student t tests, Wilcoxon tests, and McNemar tests at a significance level of 0.05. Results: After 30 days using the mandibular advancement device there was a significant decrease in some bruxism parameters, bite force, and total SAQ score (P < 0.05). Conclusions: The results suggest that the use of a soft mandibular advancement device for one month reduced bite force and bruxism and improved sleep quality in this sample. Key words: Bite force; bruxism; mandibular advancement device

Author Biographies

Vivian Chiada Mainieri, PUCRS

Graduate Program in Dentistry, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil

Aline Cristina Saueressig, PUCRS

Graduate Program in Dentistry, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil

Simone Chaves Fagondes, UFRGS

Medical School, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil

Ézio Teseo Mainieri, UFRGS

Dental School, Federal University of Rio Grande do Sul, Porto Alegre, RS, Brazil

Rosemary Sadami Arai Shinkai, PUCRS

Graduate Program in Dentistry, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil

Márcio Lima Grossi, PUCRS

Graduate Program in Dentistry, Pontifical Catholic University of Rio Grande do Sul, Porto Alegre, RS, Brazil

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Published

2008-06-22

Issue

Vol. 23 No. 3 (2008)

Section

Original Article

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