title: Orotracheal intubation and temporomandibular disorder: a longitudinal controlled study.
abstract: OBJECTIVE
  To determine the incidence of signs and symptoms of temporomandibular disorder in elective surgery patients who underwent orotracheal intubation.
  
  
  METHODS
  This was a longitudinal controlled study with two groups. The study group included patients who underwent orotracheal intubation and a control group. We used the American Academy of Orofacial Pain questionnaire to assess the temporomandibular disorder signs and symptoms one-day postoperatively (T1), and the patients' baseline status prior to surgery (T0) was also recorded. The same questionnaire was used after three months (T2). The mouth opening amplitude was measured at T1 and T2. We considered a p value of less than 0.05 to be significant.
  
  
  RESULTS
  We included 71 patients, with 38 in the study group and 33 in the control. There was no significant difference between the groups in age (study group: 66.0 [52.5-72.0]; control group: 54.0 [47.0-68.0]; p=0.117) or in their belonging to the female gender (study group: 57.9%; control group: 63.6%; p=0.621). At T1, there were no statistically significant differences between the groups in the incidence of mouth opening limitation (study group: 23.7% vs.
  
  
  METHODS
  18.2%; p=0.570) or in the mouth opening amplitude (study group: 45.0 [40.0-47.0] vs.
  
  
  METHODS
  46.0 [40.0-51.0]; p=0.278). At T2 we obtained similar findings. There was no significant difference in the affirmative response to all the individual questions in the American Academy of Orofacial Pain questionnaire.
  
  
  CONCLUSIONS
  In our population, the incidence of signs and symptoms of temporomandibular disorder of muscular origin was not different between the groups.
authors.affiliation: Morphology and Genetics Department, Escola Paulista de Medicina da Universidade Federal de Sao Paulo, São Paulo, SP, Brazil. Electronic address: cbb4680@yahoo.com.br.
authors.forename: Cláudia Branco
authors.initials: CB
authors.lastname: Battistella
authors.affiliation: Anesthesiology, Pain and Intensive Care Department, Escola Paulista de Medicina da Universidade Federal de Sao Paulo, São Paulo, SP, Brazil.
authors.forename: Flávia Ribeiro
authors.initials: FR
authors.lastname: Machado
authors.affiliation: Public Health Department, Santo Amaro University, São Paulo, SP, Brazil.
authors.forename: Yara
authors.initials: Y
authors.lastname: Juliano
authors.affiliation: Morphology and Genetics Department, Escola Paulista de Medicina da Universidade Federal de Sao Paulo, São Paulo, SP, Brazil.
authors.forename: Antônio Sérgio
authors.initials: AS
authors.lastname: Guimarães
authors.affiliation: Morphology and Genetics Department, Escola Paulista de Medicina da Universidade Federal de Sao Paulo, São Paulo, SP, Brazil.
authors.forename: Cássia Emi
authors.initials: CE
authors.lastname: Tanaka
authors.affiliation: Morphology and Genetics Department, Escola Paulista de Medicina da Universidade Federal de Sao Paulo, São Paulo, SP, Brazil.
authors.forename: Cristina Talá
authors.initials: CT
authors.lastname: de Souza Garbim
authors.affiliation: Morphology and Genetics Department, Escola Paulista de Medicina da Universidade Federal de Sao Paulo, São Paulo, SP, Brazil.
authors.forename: Paula
authors.initials: P
authors.lastname: de Maria da Rocha Fonseca
authors.affiliation: Morphology and Genetics Department, Escola Paulista de Medicina da Universidade Federal de Sao Paulo, São Paulo, SP, Brazil.
authors.forename: Monique Lalue
authors.initials: ML
authors.lastname: Sanches
mesh_terms: D000368:Aged; D017558:Elective Surgical Procedures; D005157:Facial Pain / Q000453:epidemiology* / Q000209:etiology; D005260:Female; D006801:Humans; D015994:Incidence; D007442:Intubation, Intratracheal / Q000009:adverse effects / Q000379:methods*; D008137:Longitudinal Studies; D008297:Male; D008875:Middle Aged; D010147:Pain Measurement; D011795:Surveys and Questionnaires; D013705:Temporomandibular Joint Disorders / Q000453:epidemiology*
keywords: Anestesia geral; Dor orofacial; General anesthesia; Intubation; Intubação; Myofascial pain syndromes; Orofacial pain; Síndrome da dor miofascial; Temporomandibular joint disorders; Transtornos da articulação temporomandibular