Bruxism in military pilots and non-pilots: Tooth wear and psychological stress

Orit Lurie, Yehuda Zadik*, Shmuel Einy, Ricardo Tarrasch, Gil Raviv, Liav Goldstein

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

47 Scopus citations


Background: Bruxism is the diurnal or nocturnal para-functional habit of clenching or grinding the teeth and affects 5-10% of the general western population. Bruxism can cause pain and irreversible damage to the teeth, periodontium, masticatory muscles, and temporo-mandibular joint. Variables such as general stress, work-related stress, and personality traits have been increasingly considered as initiating, predisposing, and perpetuating factors for bruxism. We sought to evaluate the potential of work-related stress and personality factors to induce bruxism among military pilots and non-pilot officers. Methods: Subjects were 57 healthy male Israel Air Force officers (mean age 25.8 ± 4.3 yr). Of these, 17 were jet-pilots, 18 helicopter-pilots, and 22 non-pilot officers. Tooth-wear was classified according to a six-point scale. In addition, the subjects responded to a battery of psychological questionnaires for self-assessment of stress at the workplace and their coping behavior. Results: Bruxism of clinical importance (i.e., with dentin exposure) was found in 69% of the aircrew members but only 27% of the non-pilot group. No difference was found between groups regarding stress levels. Discussion: Military aircrews may be relatively vulnerable to deleterious bruxism as well as other signs of chronic stress. Among bruxers, pilots tended to show coping strategies that were significantly more emotional and less task-oriented than non-pilots, whereas non-bruxers showed no significant differences in coping behavior. This study suggest that integrating dental and psychological preventive intervention may be helpful.

Original languageAmerican English
Pages (from-to)137-139
Number of pages3
JournalAviation Space and Environmental Medicine
Issue number2
StatePublished - Feb 2007


  • Aviation dentistry
  • Dentin exposure
  • Dentistry
  • Flight dentistry
  • Personality traits
  • Sleep disorder
  • Temporomandibular joint
  • Work environment


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