Scientific article

Masticatory function and bite force in stroke patients

Published inJournal of dental research, vol. 90, no. 2, p. 230-234
Publication date2011

Orofacial functions are frequently affected by stroke, but little is known on the nature and extent of the impairment of mastication, which is investigated in this observational study. Thirty-one stroke patients, aged 69.0 ± 12.7 yrs, presenting with a hemi-syndrome with facial palsy, were recruited. Chewing efficiency, maximum bite and restraining lip forces were tested. Stroke severity (National Institutes of Health Stroke Scale) and dental state were recorded. The control group was similar in age, gender, and dental state (n = 24). The chewing efficiency was significantly lower in the stroke group (p ≤ 0.0001) and was related to both the dental state and the lip forces measured with small and medium-sized labial plates. The maximum bite force proved to be not significantly different between sides or groups (n.s.), whereas lip force was significantly lower in the stroke group (p ≤ 0.05). Chewing efficiency is severely affected by stroke; thus, rehabilitation protocols should aim to restore the strength and co-ordination of the orofacial muscles.

  • Aged
  • Analysis of Variance
  • Bite Force
  • Chewing Gum
  • DMF Index
  • Dental Stress Analysis
  • Facial Muscles/physiopathology
  • Facial Paralysis/etiology/physiopathology
  • Female
  • Hemiplegia/etiology/physiopathology
  • Humans
  • Image Processing, Computer-Assisted
  • Linear Models
  • Lip/physiopathology
  • Male
  • Mastication
  • Statistics, Nonparametric
  • Stroke/complications/physiopathology
Citation (ISO format)
SCHIMMEL, Martin et al. Masticatory function and bite force in stroke patients. In: Journal of dental research, 2011, vol. 90, n° 2, p. 230–234. doi: 10.1177/0022034510383860
Main files (1)
Article (Published version)
ISSN of the journal0022-0345

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