title: Voice-related disability of Iranian patients with temporomandibular disorders.
abstract: BACKGROUND
  The relationship between handicaps because of voice disorders and temporomandibular disorders (TMDs) severity was examined.
  
  
  METHODS
  Fifty-two Persian women with temporomandibular disorder (TMD) were examined by two dentists in separate sessions and the assessment protocol of the Dentistry Clinic of Tehran University of Medical Sciences was filled by both dentists and finally they gave their opinion separately about the existence of TMD and categorized the severity of TMD as mild, moderate, and severe. To assess perceived disability resulting from voice disorders in TMD patients, the voice handicap index (VHI) questionnaire was used.
  
  
  RESULTS
  The total score of VHI in 80.8% of patients with TMD was equal to or more than 14.5. A significant positive relationship was found between the severity of TMD and the total score of VHI (P = 0.000, r = 0.79).
  
  
  CONCLUSIONS
  It seems that a comprehensive voice assessment should be included in the evaluation of TMD, and considering different effects of voice disorders on patients' lives, a complete voice evaluation including voice-related disability is necessary to understand the nature of pathophysiology of TMD.
authors.affiliation: Musculoskeletal Rehabilitation Research Center, School of Rehabilitation, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
authors.forename: Negin
authors.initials: N
authors.lastname: Moradi
authors.affiliation: Prosthodonthics Department, School of Dentistry and Dental Research Center, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Majid
authors.initials: M
authors.lastname: Sahebi
authors.affiliation: Hearing & Speech Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
authors.forename: Nader
authors.initials: N
authors.lastname: Saki
authors.affiliation: Prosthodonthics Department, School of Dentistry and Dental Research Center, Tehran University of Medical Sciences, Tehran, Iran.
authors.forename: Tahereh
authors.initials: T
authors.lastname: Hosseinzadeh Nik
authors.affiliation: Musculoskeletal Rehabilitation Research Center, School of Rehabilitation, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran. Electronic address: mjshaterzadeh.pt@gmail.com.
authors.forename: Mohammad Jafar
authors.initials: MJ
authors.lastname: Shaterzadeh Yazdi
authors.affiliation: Hearing & Speech Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
authors.forename: Soheila
authors.initials: S
authors.lastname: Nikakhlagh
authors.affiliation: Musculoskeletal Rehabilitation Research Center, School of Rehabilitation, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
authors.forename: Majid
authors.initials: M
authors.lastname: Soltani
authors.affiliation: Health Promotion Research Center, Zahedan University of Medical Sciences, Zahedan, Iran.
authors.forename: Ehsan
authors.initials: E
authors.lastname: Naderifar
authors.affiliation: Hearing & Speech Research Center, Ahvaz Jundishapur University of Medical Sciences, Ahvaz, Iran.
authors.forename: Vita
authors.initials: V
authors.lastname: Derakhshandeh
authors.affiliation: Department of Speech Therapy, University of Social Welfare and Rehabilitation Science, Tehran, Iran.
authors.forename: Shiva
authors.initials: S
authors.lastname: Javadipour
authors.affiliation: University of Tehran, Tehran, Iran.
authors.forename: Behrooz
authors.initials: B
authors.lastname: Mahmoodi-Bakhtiari
mesh_terms: D000328:Adult; D003430:Cross-Sectional Studies; D004185:Disability Evaluation; D005260:Female; D006801:Humans; D007492:Iran; D008875:Middle Aged; D011237:Predictive Value of Tests; D012720:Severity of Illness Index; D011795:Surveys and Questionnaires; D013705:Temporomandibular Joint Disorders / Q000150:complications / Q000175:diagnosis* / Q000503:physiopathology; D014832:Voice Disorders / Q000175:diagnosis* / Q000209:etiology / Q000503:physiopathology; D014833:Voice Quality; D055815:Young Adult
keywords: Persian; Temporomandibular disorders; Voice disorder; Voice handicap index