A preliminary study of maximum voluntary bite force and jaw muscle efficiency in pre-orthognathic surgery patients

Jeffrey S. Dean, Gaylord S. Throckmorton, Edward Ellis, Douglas P. Sinn

Research output: Contribution to journalArticle

50 Scopus citations

Abstract

The functional state of dentofacial deformity patients before orthognathic surgery has received relatively little study. In this study, the ability to generate occlusal force was compared between 84 patients before treatment for various dentofacial deformities and 57 controls. Maximal and submaximal bite forces were measured at the incisor and right and left first molar bite positions. Electromyographic activity (EMG) was recorded bilaterally from the anterior temporalis, posterior temporalis, and masseter muscles during each bite. An efficiency ratio was calculated for the jaw muscles by dividing the level of EMG by the occlusal force. There was a reduced ability to generate occlusal forces in the patients before surgery, especially among female patients. The reductions in maximal occlusal force were correlated with reduced efficiency of the jaw muscles.

Original languageEnglish (US)
Pages (from-to)1284-1288
Number of pages5
JournalJournal of Oral and Maxillofacial Surgery
Volume50
Issue number12
DOIs
StatePublished - Dec 1992

ASJC Scopus subject areas

  • Surgery
  • Oral Surgery
  • Otorhinolaryngology

Fingerprint Dive into the research topics of 'A preliminary study of maximum voluntary bite force and jaw muscle efficiency in pre-orthognathic surgery patients'. Together they form a unique fingerprint.

  • Cite this