title: The effects of informed consent format on preoperative anxiety in patients undergoing inferior third molar surgery.
abstract: OBJECTIVE
  To evaluate the effect of informed consent format on preoperative anxiety of patients.
  
  
  METHODS
  We performed a prospective study (91 patients) undergoing lower third molar extraction. Patients were distributed into three groups. Informed consent for surgery was obtained through a written document, an oral interview or a video recording. Afterwards, patients were asked about their anxiety level and the effect the informed consent had had on it.
  
  
  RESULTS
  Whereas the information conveyed both in oral and written formats relieved the patient to some extent (in a scale of -3 to +3) 0.97 ± 1.21 and 0.29 ± 0.97, respectively), the video recording increased patient's anxiety in a statistically significant way (in a scale of -3 to +3, -0.57 ± 1.43). The difference obtained between the values obtained in oral and written information was not statistically significant.
  
  
  CONCLUSIONS
  The most adequate format, according to our study, would be the oral format.
authors: Facultad de Odontología de Sevilla, C/ Avicena s/n 41009, Sevilla, Spain, danieltl@us.es.
authors: Daniel
authors: D
authors: Torres-Lagares
authors: Marisa
authors: M
authors: Heras-Meseguer
authors: Francisco
authors: F
authors: Azcárate-Velázquez
authors: Pilar
authors: P
authors: Hita-Iglesias
authors: Gonzalo
authors: G
authors: Ruiz-de-León-Hernández
authors: Esther
authors: E
authors: Hernández-Pacheco
authors: José-Luis
authors: JL
authors: Gutiérrez-Pérez
mesh_terms: D000328:Adult; D001007:Anxiety / Q000209:etiology*; D032962:Consent Forms; D005260:Female; D006801:Humans; D007258:Informed Consent / Q000523:psychology*; D008297:Male; D008964:Molar, Third / Q000601:surgery*; D057234:Preoperative Period; D011446:Prospective Studies; D014081:Tooth Extraction / Q000523:psychology*