title: Evaluating the head posture of dentists with no neck pain.
abstract: BACKGROUND
  Dentistry is one of the professions that requires a high degree of concentration during the treatment of patients. There are many predisposing factors, affecting dentists when working on the patient's teeth, including neck flexion, arm abduction and inflexible postural positions, which may put them at the risk of developing musculoskeletal disorders related to the neck. Although dentists with long records of service show different levels of pain and discomfort in their necks, there is no evidence regarding whether younger dentists report neck pain before the onset of an abnormal condition in this region, including forward head posture (FHP). Discovering any alteration in the head posture of dentists might confirm one of the reasons for neck pain in this population.
  
  
  METHODS
  Forty one dentists with no neck pain and forty controls having jobs other than dentistry who had no risk factors related to head posture voluntarily participated in the present study. A standard method was used to measure the cervical curve in these two groups.
  
  
  RESULTS
  There was no significant difference between the mean values of cervical curve in dentists and the control group (p > 0.05). There was also no significant difference between cervical curve values in dentists working for either 5-8 years or 8-12 years (p > 0.05). The only significant difference was observed in mean cervical curve values of men and women in the dentist group (p < 0.05).
  
  
  CONCLUSIONS
  No alteration of cervical curve in the dentist group compared to controls might be due to absence of pain sensation in the dentists in the current study. In other words, this group might have not yet experienced sufficient change in head posture to experience significant pain in their neck region.
authors.affiliation: Musculoskeletal Research Centre, School of Rehabilitation Sciences, Isfahan University of Medical Sciences, PO Box 164, Isfahan 8174673461, Iran. Electronic address: mostamand@rehab.mui.ac.ir.
authors.forename: J
authors.initials: J
authors.lastname: Mostamand
authors.forename: H
authors.initials: H
authors.lastname: Lotfi
authors.forename: N
authors.initials: N
authors.lastname: Safi
mesh_terms: D000328:Adult; D003815:Dentists; D005260:Female; D006801:Humans; D008297:Male; D009334:Neck Muscles; D019547:Neck Pain / Q000453:epidemiology*; D009784:Occupational Diseases / Q000453:epidemiology*; D011187:Posture; D016059:Range of Motion, Articular
keywords: Cervical lordosis; Forward head posture; Posture