Informed consent for third molar extraction; a comparison of conventional verbal consent versus video-assisted consent
Citation:
Mulvihill, Ciara, Informed consent for third molar extraction; a comparison of conventional verbal consent versus video-assisted consent, Trinity College Dublin.School of Dental Sciences, 2022Download Item:
Abstract:
Background: The goal of the informed consent process is to provide patients with the
necessary educational information, defend their autonomy, and allow active involvement in
treatment planning and decision-making. The informed consent process must not only describe
the operation in full, but also provide information on the procedure's rationale, alternative
therapies, associated benefits, risks, and complications. However, the process of acquiring
informed consent is fraught with issues.
Objective: This research aims to assess if presenting information about third molar extraction
via an informative, narrated, animated video changes a patient s perception of the consent
process for third molar extraction when compared to conventional verbal/written consent. The
outcomes that are evaluated include patient understanding, patient satisfaction and patient
anxiety.
Methods: In this posttest-only control clinical trial patients scheduled for surgical removal of
an impacted mandibular third molar that fulfilled the predetermined criteria were invited to
participate in the study. The criterion variable was the presentation of an animated information
consent video. Participants were randomly assigned into 2 equal groups receiving either verbal
consent or video-assisted consent. After signing the consent form patients then filled out an
electronic questionnaire rating their experience of the consent process. At the postoperative
review, 7-14 days after the procedure, patients were asked to fill out a questionnaire rating their
experience of the consent retrospectively. The outcome variables were patients self-reported
level of understanding, patient anxiety measured on the Dental Anxiety Scale and patient
satisfaction. The data were analysed with Pearson s chi-squared tests, Fisher s Exact test, and
linear regression analysis.
Results: Ninety patients fulfilled the inclusion criteria and were included in the study. The
video-assisted group reported higher levels of understanding of the proposed procedure
(P<0.001) and the associated risks/complications (P < 0.004 ). Patients were more satisfied
with information delivered to them via video. 98% of patients in the video consent group felt
that the video-assisted consent was beneficial. There was no statistically significant change in
the reported level of anxiety when video-assisted consent was used.
Conclusion: The present study suggests that video-assisted consent may improve patients
level of understanding of the potential postoperative risks and complications involved in
surgical removal of an impacted mandibular third molar. This improved understanding did not
increase patients dental anxiety compared with conventional verbal/written consent but
improved patients level of satisfaction with the amount of information that they received.
Author's Homepage:
https://tcdlocalportal.tcd.ie/pls/EnterApex/f?p=800:71:0::::P71_USERNAME:MULVIHCIDescription:
APPROVED
Author: Mulvihill, Ciara
Advisor:
Pierse, DermotQualification name:
Professional Doctor of Dental Surgery (D.Ch.Dent)Publisher:
Trinity College Dublin. School of Dental Sciences. Discipline of Dental ScienceType of material:
ThesisAvailability:
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