An interventional study of Video-Based Toothbrushing Instruction and Model-Based Toothbrushing Instruction in Dental Plaque and Oral Hygiene, sponsored by Karabuk University. Completed at 1 site in Turkey (Türkiye). Open to participants aged 7 Years to 9 Years, including healthy volunteers. Per ClinicalTrials.gov, last updated 2026-11-02.
Sponsored by Karabuk University · Not applicable, Interventional, and Prevention
Among 30 studies in Dental Plaque with a site in Turkey — 5 open to participants now, 5 under way, none of them phase 3. Dental Plaque · Turkey.
Among the 30 studies in Dental Plaque with a site in Turkey, this one is the 6th largest by enrollment of the 21 interventional ones, is one of 3 that started in 2026, is one of 21 with no phase, and was the 29th registered.
352 studies on the registry are indexed under Dental Plaque; 60 are open to participants now.
This study's enrollment of 72 is above the median of 56 across 316 interventional studies indexed under Dental Plaque.
Browse Dental Plaque studies →5 of the 30 studies in Dental Plaque with a site in Turkey are open now, in 1 country. Each count lists the studies.
Of the 35 Dental Plaque studies recruiting now, 10 (29%) set no upper age limit and 20 (57%) stop at 75 or younger; 14 take children under 18; 22 take healthy volunteers.
This study: 7 Years to 9 Years · all sexes · healthy volunteers too.
The full table on the hub →30 studies; the count open now beside each. This study's row is marked.
First in 2017; this study’s year is marked. 3 started in 2026.
Median enrollment 52 across the 21 interventional studies, 60 across the 9 observational. Of the 24 that completed or were terminated, 0 (0%) have results posted.
None of the 30 has an industry lead sponsor. The 10 most frequent:
Karabuk University is the lead sponsor of 143 studies on the registry; 40 are open to participants now.
Karabuk University has 1 study filed under Dental Plaque — fewer than ten, so there is no comparison to draw.
None of the studies under way reaches primary completion within a year.
Among the 30 studies in Dental Plaque with a site in Turkey, from their registry updates:
Good toothbrushing is important for keeping children's teeth healthy. Dentists commonly teach children how to brush their teeth using dental models or instructional videos. However, it is not clear whether one method helps children clean their teeth more effectively than the other.
The purpose of this study was to compare face-to-face toothbrushing instruction using a dental model with video-based instruction in children aged 7 to 9 years.
Children were randomly assigned to one of two groups. One group watched a video showing how to brush teeth using a dental model, while the other group received a face-to-face demonstration using the same model and toothbrushing technique.
After instruction, a plaque-disclosing tablet was used to make dental plaque visible on the children's teeth. Photographs were taken before and after the children brushed their teeth for two minutes. The researchers then compared how much plaque was removed in each group.
The main question was whether the two teaching methods differed in helping children remove dental plaque immediately after instruction.
This randomised, single-blind, parallel-group clinical trial compared the immediate plaque removal efficacy of model-based and video-based toothbrushing instruction in children aged 7-9 years.
Participants were randomly assigned to two instructional groups. In the model-based instruction group, the researcher demonstrated the Fones toothbrushing technique face-to-face using a dental model. In the video-based instruction group, children watched a pre-recorded demonstration of the same technique. Instruction lasted approximately 3-5 minutes in both groups.
Dental plaque was disclosed before and after two minutes of toothbrushing using a standardised toothbrush and fluoride toothpaste. Intraoral photographs were obtained under standardised conditions, and plaque accumulation was assessed using the Turesky Modified Quigley-Hein Plaque Index. The outcome assessor was blinded to group allocation.
The primary outcome was the percentage of plaque removed immediately after instruction. Between-group comparisons were performed, with additional analysis adjusting for baseline plaque levels. The study was designed to assess immediate toothbrushing performance rather than long-term changes in oral hygiene habits.
Go through the criteria one by one — yes, no or not sure — and take the list to your doctor or the study team. Kept in this browser only.
Children aged 7-9 years attending primary school. Presence of at least six teeth suitable for plaque scoring in the maxillary and mandibular anterior regions (canine to canine), including primary or permanent teeth.
No systemic diseases. No orthodontic brackets, fixed appliances, or retainers.
Exclusion Criteria:
Professional dental scaling or plaque removal within the previous month. Anterior teeth unsuitable for plaque assessment because of enamel defects, extensive caries, dental trauma, or restorations.
Intraoral conditions that could interfere with standardised photographic assessment.
Children received toothbrushing instruction by watching a pre-recorded video demonstrating the Fones technique on a dental model. Instruction lasted approximately 3-5 minutes. Following instruction, children brushed their teeth for two minutes using a standardised toothbrush and toothpaste.
Behavioral: Video-Based Toothbrushing Instruction
Children received face-to-face toothbrushing instruction from the researcher using a dental model to demonstrate the Fones technique. Instruction lasted approximately 3-5 minutes. Following instruction, children brushed their teeth for two minutes using a standardised toothbrush and toothpaste.
Behavioral: Model-Based Toothbrushing Instruction
Children watched a pre-recorded instructional video in which the researcher demonstrated the Fones toothbrushing technique using a dental model. The instruction lasted approximately 3-5 minutes.
The researcher provided face-to-face instruction by demonstrating the Fones toothbrushing technique using a large dental model. The instruction lasted approximately 3-5 minutes.
Percentage of Dental Plaque Removal
The percentage of dental plaque removed during toothbrushing was calculated using the Turesky Modified Quigley-Hein Plaque Index (TMQHPI). Plaque was disclosed and scored from standardised intraoral photographs before and after toothbrushing. Plaque removal percentage was calculated as \[(pre-brushing TMQHPI score - post-brushing TMQHPI score) / pre-brushing TMQHPI score\] × 100. A higher percentage indicated greater plaque removal.
Time frame: Immediately after the two-minute toothbrushing session, on the same day as instruction.
Pre-Toothbrushing Dental Plaque Score (TMQHPI)
Dental plaque accumulation was assessed before toothbrushing using the Turesky Modified Quigley-Hein Plaque Index (TMQHPI) on disclosed anterior tooth surfaces. Scores range from 0 (no plaque) to 5 (plaque covering two-thirds or more of the tooth crown). Higher scores indicate greater plaque accumulation.
Time frame: Immediately after instruction, before the two-minute toothbrushing session.
Plan to share: No — Individual participant data will not be shared due to privacy and confidentiality considerations, as the study involves children and includes intraoral photographs and individual clinical records.
Ran from May 2026 to primary completion in Aug 2026, 3 months.
Of 133 non-industry interventional studies with no phase under Dental Plaque, half reached primary completion within 7 months of starting (the median), counting those still running; a quarter within 3 and three quarters within 16. This study's 3 months is below that.
Counting every sponsor, half of 178 studies reached it within 6 months; a quarter within 2 and three quarters within 14.
How these figures are worked out, and which studies are left out of them.
From the registry record's own update history. This site started tracking changes on Sep 25, 2026; for anything earlier, see the record history on ClinicalTrials.gov ↗
This study is completed, as verified in Oct 2026. You cannot join it, but the record below documents what was studied.
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