Should Preoperative Information Before Impacted Third Molar Extraction?
Condition: Impacted Third Molar Tooth; Dental Anxiety
MeSH terms: Tooth, Impacted
Study type: Interventional

Summary: 
      The main objective of the present study was to evaluate the effects of different preoperative
      information techniques (verbal, written, video with background audio, and silent video with
      subtitles) on patients' anxiety levels before and after third molar extraction. The secondary
      objective was to determine the superiority of the information methods evaluated over each
      other. We hypothesized that the information provided by video with or without background
      audio would decrease preoperative and postoperative anxiety levels more effectively than
      information provided by verbal and written methods.
    

Detailed description: 
      This prospective study included 86 patients who underwent third molar extraction under local
      anesthesia in the Oral and Maxillofacial Department, Faculty of Dentistry, Ankara Yıldırım
      Beyazıt University, Turkey, between May and June 2022. The research protocol was approved by
      The Yıldırım Beyazıt University Oral and Health Training and Research Hospital Ethical
      Committee,Turkey. (No: E-2022-14) Spielberger State Anxiety Inventory (STAI-S), Dental Fear
      Scale (DFS), Modified Dental Anxiety Scale (MDAS), and Visual Analog Scale (VAS) are commonly
      used questionnaires for dental anxiety. The latter asked only about age and sex. They were
      used together before and immediately after surgery to obtain better results in this study.

      After examining the panoramic radiographs, patients who underwent extraction were included in
      Classes 1 and II, Positions A and B according to Pell-Gregory classification, and
      mesioangular and vertical positions according to the Winter classification.

      Each patient was examined by the researcher. The patients were informed about the procedure,
      and written informed consent was obtained from the patient's preoperative assessment clinic.
      If a patient had additional questions, they were included as part of the investigation
      Patients were assigned to 4 groups: Group 1 was informed via silent video with subtitle,
      group 2 was informed via video with background audio, group 3 was informed with written
      information brochure, group 4 (control group) was informed preoperatively verbally. The
      Spielberger State Anxiety Inventory (STAI-S), Dental Fear Scale (DFS), Modified Dental
      Anxiety Scale (MDAS), and visual analog scale (VAS) were used pre- and postoperatively to
      evaluate the dental anxiety of patients
    

Intervention name(s): Spielberger State Anxiety Inventory (STAI-S); Dental Fear Scale (DFS); Modified Dental Anxiety Scale (MDAS); Visual Analog Scale (VAS)
Intervention type(s): Behavioral; Behavioral; Behavioral; Behavioral
Intervention description(s): STAI is one of the most frequently used scales in anxiety research, although it is not a specific scale for dental anxiety; DFS is a scale developed by Kleinknecht used to determine dental fear in different dimensions. This is a Likert-type scale with a score of 1-5. It has 20 items. It examines the level of fear in terms of dentist avoidance, somatic symptoms of fear, and fear of various applications in dentistry practice; MDAS was developed by Humphris et al. by adding a question related to injection. The scale consists of five-point Likert-type rating with five options. The scoring in this scale varies between 5 and 25; VAS is ideal for evaluating situations that cannot be measured using digital and oral information. In the present study, a scale comprising 100-mm closed-end line was used to measure the anxiety level. One end of the scale was labeled as "no anxiety" and the other end as "maximum anxiety imaginable
Allocation: Randomized
Intervention model: Parallel Assignment
Intervention model description: Group 1 was informed via silent video with subtitle, group 2 was informed via video with background audio, group 3 was informed with written information brochure, group 4 (control group) was informed verbally.
Masking: Double (Participant, Investigator)
Primary purpose: Treatment
Keywords: third molar extraction; Dental anxiety; preoperative information