NCT07528755

Audiovisual vs Verbal Information in Third Molar Surgery

Effect of Audiovisual Versus Verbal Preoperative Information on Dental Anxiety and Hemodynamic Parameters in Patients Undergoing Impacted Mandibular Third Molar Surgery: A Randomized Controlled Trial

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 73 (actual)
• Sponsor: Gazi University · Academic / Other
• Sex: All
• Age: 18 Years – 50 Years
• Healthy volunteers: Accepted

Summary

This study evaluates whether audiovisual (video-based) or verbal preoperative information is more effective in reducing dental anxiety and stabilizing physiological responses in patients undergoing impacted mandibular third molar surgery. A total of 73 patients scheduled for third molar extraction were randomly assigned to receive either video-based information or standard verbal information before surgery. Anxiety levels were assessed using validated scales, and physiological parameters such as heart rate, blood pressure, and oxygen saturation were recorded at different stages of the surgical procedure. The aim of this study is to determine whether the method of preoperative information has an effect on patients' anxiety levels and physiological stress responses during oral surgery.

Detailed description

This prospective randomized controlled clinical trial was conducted to evaluate the effects of audiovisual and verbal preoperative information on dental anxiety and hemodynamic parameters in patients undergoing impacted mandibular third molar surgery. A total of 73 patients scheduled for impacted mandibular third molar extraction were included in the study and randomly assigned to one of two groups: an audiovisual information group (video-based information) and a verbal information group. The audiovisual group received a standardized video presentation explaining the surgical procedure, while the control group received standardized verbal information from the clinician. Dental anxiety levels were assessed using validated psychometric scales, including the Modified Dental Anxiety Scale (MDAS) and the State-Trait Anxiety Inventory (STAI-S and STAI-T). In addition, physiological parameters such as heart rate, systolic and diastolic blood pressure, and oxygen saturation were recorded at standardized stages of the surgical procedure, including preoperative baseline, anesthesia administration, incision, tooth extraction, suturing, and postoperative period. The primary objective of the study was to compare the effects of audiovisual and verbal information on dental anxiety levels. Secondary outcomes included the evaluation of hemodynamic parameters during different surgical stages. The study also explored the influence of demographic factors such as age and sex on anxiety and physiological responses. This study was approved by the Ethics Committee of Gazi University (Decision No: E-77082166-302.08.01-848588), and all participants provided written informed consent prior to inclusion.

Conditions

• Dental Anxiety
• Impacted Mandibular Third Molar

Interventions

Type	Name	Description
BEHAVIORAL	Audiovisual Information	Participants watched a standardized video explaining the impacted mandibular third molar surgery procedure, including the main surgical steps, before the operation.
BEHAVIORAL	Verbal Information	Participants received standardized verbal information about the surgical procedure from the clinician before the operation.

Timeline

• Start date: 2024-03-01
• Primary completion: 2024-08-01
• Completion: 2024-10-15
• First posted: 2026-04-14
• Last updated: 2026-04-14

Locations

1 site across 1 country: Turkey (Türkiye)