Effect of Preoperative Information Videos on Anxiety and Vital Signs in Impacted Third Molar Surgery

May 4, 2026 updated by: Emre Can ÇIRALIK, Recep Tayyip Erdogan University

The Effect of Preoperative Surgical Information Videos on Hemodynamic Parameters and Dental Anxiety in Impacted Mandibular Third Molar Surgery: A Randomized Controlled Trial

This study evaluates whether physician-guided visual information provided before impacted mandibular third molar surgery can improve hemodynamic stability during the perioperative period. Participants are assigned to one of three preoperative information methods: standard verbal information, real surgical video information, or 3D animation video information. Changes in systolic blood pressure, diastolic blood pressure, heart rate, and oxygen saturation are assessed at multiple perioperative time points to determine whether visual information reduces stress-related physiologic responses. The study also examines whether these information methods influence preoperative dental fear.

Study Overview

Status

Completed

Conditions

Intervention / Treatment

Detailed Description

Impacted mandibular third molar surgery is a common oral surgical procedure that is frequently associated with patient stress, fear, and physiologic fluctuations during the perioperative period. In addition to subjective anxiety, these stress responses may be reflected in hemodynamic parameters such as systolic blood pressure, diastolic blood pressure, heart rate, and oxygen saturation.

This randomized controlled study was designed to investigate whether physician-guided visual information can improve perioperative hemodynamic stability compared with standard verbal information alone. Participants undergoing impacted mandibular third molar surgery are assigned to one of three preoperative information approaches: standard verbal information, real surgical video information, or 3D animation video information.

The primary objective is to compare the effects of these information modalities on perioperative hemodynamic responses measured at predefined time points, including baseline, after local anesthesia, during tooth luxation, after suturing, and during the early recovery period. The secondary objective is to evaluate the effect of these information methods on dental fear using a validated psychometric scale.

The study is based on the hypothesis that visually supported preoperative information, when delivered in a structured and physician-guided manner, may reduce stress-related physiologic fluctuations during surgery and may also influence patients' self-reported dental fear. By comparing verbal, real video, and animation-based information methods, the study aims to clarify whether visual information contributes to better physiologic regulation and patient preparation before third molar surgery.

Study Type

Interventional

Enrollment (Actual)

72

Phase

  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Turkey (Türkiye)
    • Merkez
      • Rize, Merkez, Turkey (Türkiye), 53200
        • Recep Tayyip Erdogan University Faculty of Dentistry

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Ages Eligible for Study

  • Adult

Accepts Healthy Volunteers

No

Description

Inclusion Criteria:

  • Age between 18 and 50 years
  • ASA physical status I or II
  • Radiographic evidence of an impacted mandibular third molar classified as Pell-Gregory Class I or II and Position A or B
  • Presence of mandibular third molar (tooth 38 or 48) in a vertical or mesioangular position according to Winter's classification
  • Indication for impacted mandibular third molar extraction
  • Willingness to participate and provide written informed consent

Exclusion Criteria:

  • Active smoking or alcohol consumption
  • Bleeding/coagulation disorders or any systemic disease/medication use that could impair wound healing
  • Pregnancy or lactation
  • Local pathologies associated with the impacted tooth, such as cysts or tumors
  • History of severe anxiety disorder or known psychiatric illness
  • Known allergy to local anesthetics or planned postoperative medications
  • Presence of uncontrolled active periodontal disease
  • Inability or unwillingness to comply with follow-up procedures

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Supportive Care
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Single

Arms and Interventions

Participant Group / Arm
Intervention / Treatment
Active Comparator: Standard Verbal Information
Participants receive standard physician-delivered verbal preoperative information before impacted mandibular third molar surgery.
Behavioral: Standard Verbal Information
Participants receive standard physician-delivered verbal preoperative information before impacted mandibular third molar surgery.
Experimental: Real Surgical Video Information
Participants receive physician-guided preoperative information using a real surgical video before impacted mandibular third molar surgery.
Behavioral: Real Surgical Video Information
Participants receive physician-guided preoperative information using a real surgical video before impacted mandibular third molar surgery.
Experimental: 3D Animation Video Information
Participants receive physician-guided preoperative information using a 3D animation video before impacted mandibular third molar surgery.
Behavioral: 3D Animation Video Information
Participants receive physician-guided preoperative information using a 3D animation video before impacted mandibular third molar surgery.

What is the study measuring?

Primary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Change in Systolic Blood Pressure (SBP)
Time Frame: Assessed at 5 specific time points: from baseline (preoperative) up to 15 minutes postoperatively
Systolic blood pressure is measured in millimeters of mercury (mmHg) to evaluate hemodynamic stability. The measurements are recorded at five specific time points: at baseline (T0), after local anesthesia (T1), during tooth luxation (T2), after suturing (T3), and 15 minutes postoperatively (T4).
Assessed at 5 specific time points: from baseline (preoperative) up to 15 minutes postoperatively
Change in Diastolic Blood Pressure (DBP)
Time Frame: Assessed at 5 specific time points: from baseline (preoperative) up to 15 minutes postoperatively
Diastolic blood pressure is measured in millimeters of mercury (mmHg) to evaluate hemodynamic stability. The measurements are recorded at five specific time points: at baseline (T0), after local anesthesia (T1), during tooth luxation (T2), after suturing (T3), and 15 minutes postoperatively (T4).
Assessed at 5 specific time points: from baseline (preoperative) up to 15 minutes postoperatively
Change in Heart Rate (HR)
Time Frame: Assessed at 5 specific time points: from baseline (preoperative) up to 15 minutes postoperatively
Heart rate is measured in beats per minute (bpm) to evaluate physiological stress response. The measurements are recorded at five specific time points: at baseline (T0), after local anesthesia (T1), during tooth luxation (T2), after suturing (T3), and 15 minutes postoperatively (T4).
Assessed at 5 specific time points: from baseline (preoperative) up to 15 minutes postoperatively
Change in Oxygen Saturation (SpO₂)
Time Frame: Assessed at 5 specific time points: from baseline (preoperative) up to 15 minutes postoperatively
Peripheral oxygen saturation is measured as a percentage (%) to evaluate respiratory stability. The measurements are recorded at five specific time points: at baseline (T0), after local anesthesia (T1), during tooth luxation (T2), after suturing (T3), and 15 minutes postoperatively (T4)
Assessed at 5 specific time points: from baseline (preoperative) up to 15 minutes postoperatively

Secondary Outcome Measures

Outcome Measure
Measure Description
Time Frame
Modified Dental Fear Survey (MDFS) Score
Time Frame: Assessed once, immediately after the preoperative information intervention (just prior to surgery)
Dental fear is assessed using the Modified Dental Fear Survey (MDFS). The survey consists of 20 items, with each item scored on a 5-point Likert scale (from 1 = not at all, to 5 = very much). The total score ranges from a minimum of 20 to a maximum of 100. Higher scores indicate a higher level of dental fear and anxiety, which represents a worse outcome.
Assessed once, immediately after the preoperative information intervention (just prior to surgery)

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Recep Tayyip Erdogan University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start (Actual)

June 2, 2025

Primary Completion (Actual)

September 1, 2025

Study Completion (Actual)

September 1, 2025

Study Registration Dates

First Submitted

March 16, 2026

First Submitted That Met QC Criteria

March 16, 2026

First Posted (Actual)

March 20, 2026

Study Record Updates

Last Update Posted (Actual)

May 29, 2026

Last Update Submitted That Met QC Criteria

May 4, 2026

Last Verified

March 1, 2026

More Information

Terms related to this study

Keywords

Other Study ID Numbers

  • 1462 (CSL Behring)
  • 2025/225 (Other Identifier: Non-Interventional Clinical Research Ethics Committee of Recep Tayyip Erdoğan University)

Plan for Individual participant data (IPD)

Plan to Share Individual Participant Data (IPD)?

NO

IPD Plan Description

Individual participant data (IPD) will not be shared because the study was conducted at a single center with a limited sample size, and the dataset contains potentially identifiable clinical information. No formal plan for external IPD sharing has been established.

Drug and device information, study documents

Studies a U.S. FDA-regulated drug product

No

Studies a U.S. FDA-regulated device product

No

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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