title: Sleep bruxism: clinical aspects and characteristics in patients with and without chronic orofacial pain.
abstract: OBJECTIVE
  Evaluation of long-standing sleep bruxism (SB) patients.
  
  
  METHODS
  Descriptive study.
  
  
  RESULTS
  One hundred subjects with SB (80 women and 20 men, mean age: 36.1+/-11.3 years) were evaluated according to the RDC/TMD and a pain questionnaire (EDOF-HC). The patients were divided into 2 groups: Group A-without (30.0%) and Group B-with orofacial pain (70.0%). AM stiffness: 36.4% in Group A and 88.6% in Group B; mean pain duration: 6.92 years; mean intensity of pain: 4.33 (VAS); quality of pain: tightness/pressure (84.3%); 95.7% of Group B had myofascial pain. Depression and somatization levels were different between the groups (p = 0.001). Higher frequency of depression was found with body pain or presence of comorbidities.
  
  
  CONCLUSIONS
  The data presented in this study showed statistical differences between long-standing bruxism without and with chronic facial pain; the two questionnaires allowed interaction between the chief complaint and the clinical findings; depression levels increased with pain in several regions of the body.
authors.affiliation: Faculty of Dentistry, State University of São Paulo Julio de Mesquita Filho, São Paulo, Brazil.
authors.forename: C M
authors.initials: CM
authors.lastname: Camparis
authors.forename: J T T
authors.initials: JT
authors.lastname: Siqueira
mesh_terms: D000293:Adolescent; D000328:Adult; D000368:Aged; D018771:Arthralgia / Q000209:etiology; D002908:Chronic Disease; D003863:Depression / Q000209:etiology; D005157:Facial Pain / Q000150:complications / Q000209:etiology* / Q000523:psychology; D005260:Female; D006801:Humans; D008297:Male; D008875:Middle Aged; D010147:Pain Measurement; D020186:Sleep Bruxism / Q000150:complications* / Q000523:psychology; D013001:Somatoform Disorders / Q000209:etiology; D011795:Surveys and Questionnaires; D013705:Temporomandibular Joint Disorders / Q000150:complications / Q000175:diagnosis / Q000209:etiology; D014072:Tooth Abrasion / Q000209:etiology