title: Risk factors for peri-anaesthetic dental injury.
abstract: In this retrospective case-control study, we evaluated peri-operative dental injury risk factors following tracheal intubation. Ninety-four of 290,415 patients experienced dental injury following tracheal intubation over a 10-y period. A control group was matched for surgery type and intubating anaesthetist. The incidence of dental injury was 0.03%. Univariate analysis revealed that previous and current difficult intubation, male gender, hepatitis, neurological disease, anticonvulsant use, pre-existing poor dentition and the use of airway devices (other than a laryngoscope) were associated with dental injury. Multivariate analysis revealed that predictors of dental injury were: history of hepatitis, odds ratio (95% CI) 10.1 (1.02-100.3); poor dentition, 8.8 (3.9-20.0); alternative airway device use, 3.1 (1.2-8.0); and intubation difficulty, 3.7 (1.0-13.3). As well as confirming previously reported risk factors for dental injury during tracheal intubation, this study also suggests hepatitis and the use of alternative airway devices as additional risk factors.
authors.affiliation: Department of Anaesthesiology and Pain Medicine, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: S Y
authors.initials: SY
authors.lastname: Ham
authors.affiliation: Department of Anaesthesiology and Pain Medicine, Anaesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: J
authors.initials: J
authors.lastname: Kim
authors.affiliation: Department of Anaesthesiology and Pain Medicine, Anaesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: Y J
authors.initials: YJ
authors.lastname: Oh
authors.affiliation: Department of Anaesthesiology and Pain Medicine, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: B
authors.initials: B
authors.lastname: Lee
authors.affiliation: Department of Anaesthesiology and Pain Medicine, CHA Bundang Medical Center, CHA University, Seongnam, Korea.
authors.forename: Y-S
authors.initials: YS
authors.lastname: Shin
authors.affiliation: Department of Anaesthesiology and Pain Medicine, Anaesthesia and Pain Research Institute, Yonsei University College of Medicine, Seoul, Korea.
authors.forename: S
authors.initials: S
authors.lastname: Na
mesh_terms: D000328:Adult; D016022:Case-Control Studies; D004867:Equipment Design; D005260:Female; D006801:Humans; D007442:Intubation, Intratracheal / Q000009:adverse effects*; D008297:Male; D008875:Middle Aged; D012189:Retrospective Studies; D012307:Risk Factors; D012737:Sex Factors; D018677:Tooth Injuries / Q000209:etiology*
keywords: airway assessment: co-existing disease; difficult airway algorithm; hepatic dysfunction