Dental AnxietyAVIDNCT07528755
Audiovisual vs Verbal Information in Third Molar Surgery
A study testing Audiovisual Information and Verbal Information in people with Dental Anxiety and Impacted Mandibular Third Molar, run by Gazi University at 1 site in Turkey (Türkiye).
Trial 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. Read more about this study
- Who is it for?
- Ages 18 to 50 yearsHealthy volunteers can take part
- Conditions the study is for
- Dental Anxiety, Impacted Mandibular Third Molar
- What is being tested?
- Audiovisual Information and Verbal Information
- Type of treatment
- Lifestyle or therapy programme
- Could I receive a placebo?
- No, everyone receives an active treatment
- How many people
- 73 participants
- Where
- 1 siteTurkey (Türkiye)
- Study dates
- 1 Mar 2024to 15 Oct 2024
- Phase
- Interventional
- Are there results?
- None posted in the registry
Key requirements
Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.
- Ages 18 to 50 years
- All sexes
- Healthy volunteers accepted
- Adult
Who may be able to join
- Patients scheduled for impacted mandibular third molar extraction
- Age between 18 and 50 years
- Literate individuals
- Mentally healthy individuals
- Individuals without systemic disease
- Willingness to participate voluntarily and provide written informed consent
Who cannot join
- Age under 18 years
- Illiterate individuals
- Individuals with psychiatric disorders
- Individuals who declined to participate
Trial locations and contacts
1 site in 1 country.
Turkey (Türkiye)1 site
Gazi University Faculty of Dentistry
Ankara, Ankara, 06500
About this study
Official title: 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
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.
Read the 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
- Being tested
- Audiovisual Information, Verbal Information
- Keywords
- Dental Anxiety, Third Molar Surgery, Audiovisual Information, Verbal Information, Hemodynamic Parameters, Randomized Controlled Trial
What participants receive
What participants receive. In a randomised study each person is assigned to one group by chance.
Audiovisual InformationBehavioural
Participants watched a standardized video explaining the impacted mandibular third molar surgery procedure, including the main surgical steps, before the operation.
Verbal InformationBehavioural
Participants received standardized verbal information about the surgical procedure from the clinician before the operation.
| Study group | Role | What they receive |
|---|---|---|
| Audiovisual Information Group | Experimental | Participants received a standardized video-based audiovisual explanation of the surgical procedure before the operation. Receives: Behavioral: Audiovisual Information |
| Verbal Information Group | Active comparator | Standardized verbal information about the surgical procedure was provided to participants by the clinician before surgery. Receives: Behavioral: Verbal Information |
What is being measured
The primary outcome is the main question the study is designed to answer.
State Anxiety Level (STAI-S)
State anxiety was assessed using the State-Trait Anxiety Inventory-State (STAI-S), a validated 20-item questionnaire with scores ranging from 20 to 80, where higher scores indicate greater anxiety (worse outcome). Measurements were performed at baseline (preoperative) and after the intervention (preoperative, following audiovisual or verbal information.
Measured: Baseline (preoperative) and immediately after surgery
Dental Anxiety Level (MDAS)
Dental anxiety was assessed using the Modified Dental Anxiety Scale (MDAS), a validated 5-item questionnaire with scores ranging from 5 to 25, where higher scores indicate greater dental anxiety (worse outcome). Measurements were performed at baseline (preoperative) and immediately postoperatively.
Measured: Baseline (preoperative) and immediately postoperatively
Secondary outcomes (3)
Heart Rate
Heart rate (beats per minute) was measured using a non-invasive patient monitoring device at standardized perioperative time points. Measurements were obtained at baseline (preoperative), during local anesthesia administration, surgical incision, tooth extraction, suturing, and immediately after completion of the procedure. Higher heart rate values indicate increased physiological stress response associated with the surgical intervention.
Measured: During the perioperative period (from baseline to immediately postoperatively)
Blood Pressure
Blood pressure (mmHg), including systolic and diastolic values, was measured using a non-invasive patient monitoring device at standardized perioperative time points, including baseline (preoperative), during local anesthesia administration, surgical incision, tooth extraction, suturing, and immediately after completion of the procedure. Higher values indicate increased cardiovascular response to surgical stress.
Measured: During the perioperative period (from baseline to immediately postoperatively)
Oxygen Saturation
Oxygen saturation (%) was measured using a non-invasive patient monitoring device at standardized perioperative time points, including baseline (preoperative), during local anesthesia administration, surgical incision, tooth extraction, suturing, and immediately after completion of the procedure. Values represent the percentage of oxygen-saturated hemoglobin in the blood. Lower values may indicate impaired oxygenation and altered physiological response, whereas higher values reflect adequate oxygenation status. Changes in oxygen saturation may also reflect physiological responses associated with perioperative stress.
Measured: During the perioperative period (from baseline to immediately postoperatively)
Timeline
From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.
- First posted14 Apr 2026
- Study start1 Mar 2024
- Primary completion1 Aug 2024
- Study completion15 Oct 2024
Resources
- Official record on ClinicalTrials.govThe registry entry this page is built from, with its full change history.
- Other trials for Dental AnxietyStudies of the same condition, open and under way.
- What the trial phases meanHow a treatment moves from first tests in people to approval.
More details
For doctors and researchers: how the study is designed, who runs it, and its registry IDs.
Study design
- Study type
- Interventional
- Phase
- Phase N/A
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Model description
- Participants were randomly assigned to two parallel groups: an audiovisual information group and a verbal information group. Each participant received only one type of preoperative information, and outcomes were compared between the groups.
- Masking
- Double blind
- Who is masked
- Care provider, Investigator
- Enrolment
- 73 participants (actual)
Sponsor and investigators
- Lead sponsor
- Gazi University
- Sponsor type
- University, hospital or other
- Responsible party
- Principal investigator, Gökhan Hakkı ALPASLAN, Gazi University
- Investigators
- Hasan Ali A ÖZTAŞ, DDS, PhD, Principal investigator, Gazi University
IDs, dates and publications
- ClinicalTrials.gov ID
- NCT07528755
- Sponsor's protocol ID
- E-77082166-302.08.01-848588
- Acronym
- AVID
- Status last verified
- Apr 2026
- First submitted
- 1 Apr 2026
- Last updated
- 14 Apr 2026
- Results posted
- No
- Data monitoring committee
- No
- FDA-regulated drug
- No
- FDA-regulated device
- No
- Individual data sharing
- Yes: De-identified individual participant data underlying the reported results, including demographic data, anxiety scale scores (MDAS, STAI-S, STAI-T), and hemodynamic parameters (heart rate, blood pressure, and oxygen saturation), will be shared upon reasonable request.
Study at a glance
From the registry record, last updated by the sponsor on 14 Apr 2026. Recruitment status is as the sponsor reported it: confirm with the study team.
- Official title
- 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
- ClinicalTrials.gov ID
- NCT07528755
- Acronym / sponsor ID
- AVID / E-77082166-302.08.01-848588
- Conditions
- Dental Anxiety, Impacted Mandibular Third Molar
- Keywords
- Dental Anxiety, Third Molar Surgery, Audiovisual Information, Verbal Information, Hemodynamic Parameters, Randomized Controlled Trial
- Study type
- Interventional
- Recruitment status
- Completed
- Enrolment
- 73 participants (actual)
- Lead sponsor
- Gazi UniversityUniversity, hospital or other
- Study start
- 1 Mar 2024 (actual)
- Primary completion
- 1 Aug 2024 (actual)
- Study completion
- 15 Oct 2024 (actual)
- First posted
- 14 Apr 2026 (actual)
- Results
- Not posted in the source record
Clinical summary
The research question as the sponsor registered it. This describes what the study plans to test, not what it found.
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.
Study design
- Primary purpose
- Other
- Allocation
- Randomised
- Intervention model
- Parallel groups
- Masking
- Double blind (care provider, investigator)
- Number of arms
- 2
- Model description
- Participants were randomly assigned to two parallel groups: an audiovisual information group and a verbal information group. Each participant received only one type of preoperative information, and outcomes were compared between the groups.
| Arm | Type | Receives |
|---|---|---|
| Audiovisual Information Group | Experimental | Behavioral: Audiovisual InformationParticipants received a standardized video-based audiovisual explanation of the surgical procedure before the operation. |
| Verbal Information Group | Active comparator | Behavioral: Verbal InformationStandardized verbal information about the surgical procedure was provided to participants by the clinician before surgery. |
Who may qualify
- Ages
- 18 to 50 years
- Sex
- All
- Healthy volunteers
- Accepted
- Age groups
- Adult
Key inclusion criteria (6 listed)
- Patients scheduled for impacted mandibular third molar extraction
- Age between 18 and 50 years
- Literate individuals
- Mentally healthy individuals
- Individuals without systemic disease
Key exclusion criteria (4 listed)
- Age under 18 years
- Illiterate individuals
- Individuals with psychiatric disorders
- Individuals who declined to participate
Eligibility is decided by the study team after screening; this overview does not establish that a patient qualifies. Full inclusion and exclusion criteria.
Interventions
| Intervention | Type | Arms |
|---|---|---|
| Audiovisual InformationParticipants watched a standardized video explaining the impacted mandibular third molar surgery procedure, including the main surgical steps, before the operation. | Behavioural | Audiovisual Information Group |
| Verbal InformationParticipants received standardized verbal information about the surgical procedure from the clinician before the operation. | Behavioural | Verbal Information Group |
Primary outcome
State Anxiety Level (STAI-S)
Time frame: Baseline (preoperative) and immediately after surgery
State anxiety was assessed using the State-Trait Anxiety Inventory-State (STAI-S), a validated 20-item questionnaire with scores ranging from 20 to 80, where higher scores indicate greater anxiety (worse outcome). Measurements were performed at baseline (preoperative) and after the intervention (preoperative, following audiovisual or verbal information.
Dental Anxiety Level (MDAS)
Time frame: Baseline (preoperative) and immediately postoperatively
Dental anxiety was assessed using the Modified Dental Anxiety Scale (MDAS), a validated 5-item questionnaire with scores ranging from 5 to 25, where higher scores indicate greater dental anxiety (worse outcome). Measurements were performed at baseline (preoperative) and immediately postoperatively.
3 secondary outcomes
Heart Rate
Time frame: During the perioperative period (from baseline to immediately postoperatively)
Blood Pressure
Time frame: During the perioperative period (from baseline to immediately postoperatively)
Oxygen Saturation
Time frame: During the perioperative period (from baseline to immediately postoperatively)
Results and safety
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
Research links
- Official record on ClinicalTrials.govLast updated by the sponsor 14 Apr 2026.
- Individual participant dataSharing planned: Yes. De-identified individual participant data underlying the reported results, including demographic data, anxiety scale scores (MDAS, STAI-S, STAI-T), and hemodynamic parameters (heart rate, blood pressure, and oxygen saturation), will be shared upon reasonable request.
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Referral and contact
AzTrials does not enrol participants or take referrals. Contact the study team or a site listed below; they decide who can take part. This study is not recruiting at the moment.
Hasan Ali A ÖZTAŞ, DDS, PhD principal investigator
Gazi University
1 site in 1 country: see every site and its status.
Questions about this trial
What is this clinical trial studying?
A study testing Audiovisual Information and Verbal Information in people with Dental Anxiety and Impacted Mandibular Third Molar, run by Gazi University at 1 site in Turkey (Türkiye).
The full registered description is in the About this study section and the official record.
Who may be eligible to take part?
The sponsor lists 6 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.
Is this clinical trial currently recruiting?
The record says: finished, as of the sponsor's last update on 14 Apr 2026. Status can change between updates, so confirm with the study contact before making plans.
Where is the study taking place?
The record lists 1 site in Turkey (Türkiye). Whether a site is taking part right now should be confirmed with that site. See every site.
What are the possible benefits and risks?
They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.
Are results available for this study?
The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.
How can a doctor refer a patient or contact the research team?
The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.
What does the primary outcome measure?
State Anxiety Level (STAI-S) (time frame: Baseline (preoperative) and immediately after surgery). The study lists 2 primary outcomes in all. It is what the study was designed to measure, not a finding.
Where can I read the original study information?
Does a listing mean the treatment is approved or proven to work?
No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.
How often is this information updated?
AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 14 Apr 2026.