NCT07097324

Interactive Video- and Game-Based Oral Health Education for 11-Year-Old Schoolchildren

Effectiveness of an Interactive Video- and Game-Based Oral Health Education Intervention Among 11-Year-Old Schoolchildren in Pulau Pinang: A Cluster Randomised Controlled Trial

• Status: Completed
• Phase: N/A
• Study type: Interventional
• Enrollment: 220 (actual)
• Sponsor: Universiti Sains Malaysia · Academic / Other
• Sex: All
• Age: 11 Years – 11 Years
• Healthy volunteers: Accepted

Summary

The goal of this cluster randomised controlled trial is to learn if an interactive video- and game-based oral health education intervention helps improve oral health outcomes among 11-year-old schoolchildren in Pulau Pinang, Malaysia. The main questions it aims to answer are: * Does the intervention improve oral hygiene status? * Does the intervention improve oral health knowledge, attitudes and hygiene practices? * Does the intervention reduce the frequency of consuming foods that can cause tooth decay (cariogenic foods)? Investigators will compare a group that receives the video- and game-based oral health education intervention along with a conventional oral health talk to a group that receives only the conventional oral health talk. This will help determine whether the video- and game-based oral health education intervention is more effective than the conventional oral health talk alone. Participants will: * Receive either three weekly sessions of the video- and game-based oral health education intervention in addition to a conventional oral health talk, or only the conventional oral health talk. * Take part in assessments, including a clinical examination to check oral hygiene status and a self-administered questionnaire on oral health knowledge, attitudes, hygiene practices and frequency of cariogenic food consumption. These assessments will take place at three time points: before the intervention, one month after and three months after the intervention is completed.

Detailed description

This is a two-arm, parallel-group, single-blinded, cluster randomised controlled trial evaluating the effectiveness of an interactive video- and game-based oral health education intervention among 11-year-old schoolchildren in Pulau Pinang, Malaysia. The allocation follows a 1:1 ratio. One district will be randomly selected and assigned to the intervention group, and another to the control group, using computer-generated random numbers in IBM SPSS Statistics for Windows, Version 29. Within each district, two government national primary schools will be randomly selected, and from each school, two classes will be randomly chosen. All eligible students in the selected classes, with written parental/guardian consent and written participant assent, will be included. The control group will receive a conventional oral health talk provided through the school dental service. The intervention group will receive three weekly video- and game-based oral health education sessions delivered by the principal investigator, in addition to the conventional oral health talk. Assessments will be conducted at three time points: pre-intervention, one month post-intervention and three months post-intervention. The primary outcome is oral hygiene status, while secondary outcomes include oral health knowledge, oral health attitudes, oral hygiene practices and frequency of cariogenic food consumption. Oral hygiene status will be assessed by a calibrated clinician using the Simplified Debris Index (DI-S) while secondary outcomes will be assessed using a validated self-administered questionnaire. The trial is single-blinded, with clinical examiners blinded to group allocation. Sample size was calculated using G\*Power software version 3.1.9.7 for repeated measures Analysis of Variance (ANOVA) (between factors). Assuming an effect size of 0.25, α = 0.05, power = 0.8 and a correlation of 0.5 among repeated measures, the required sample size is 86 participants. After adjusting for a 20% attrition rate and a design effect of 2 for cluster randomisation, the final sample size is 216 participants (108 per group). All data will be analysed using IBM SPSS Statistics for Windows, Version 29. Descriptive statistics will summarise the data. Pre-intervention between-group comparisons will be conducted using the Pearson chi-square tests for categorical variables and independent t-tests for numerical variables. Mixed ANOVA will be used to assess and compare oral hygiene status, oral health knowledge, oral health attitudes, oral hygiene practices and frequency of cariogenic food consumption within and between the intervention and control groups at various time points (pre-intervention, one month post-intervention and three months post-intervention). If needed, mixed Analysis of Covariance (ANCOVA) will be performed to adjust for potential confounding factors. When significant effects are observed, post-hoc pairwise comparisons will be conducted to identify specific time points with significant differences. A significance level of p\<0.05 will be applied.

Conditions

• Oral Health

Interventions

Type	Name	Description
BEHAVIORAL	Video- and Game-Based Oral Health Education	A video- and game-based oral health education intervention will be delivered to the participants in the intervention group over three weekly sessions. In the first session, participants will watch a video that highlights key messages on oral health, including the importance of oral health, the consequences of poor oral health and recommended oral health practices. This will be followed by an interactive quiz to reinforce the content of the video. In the second session, a video demonstrating proper tooth brushing and flossing techniques will be shown. Participants will then practice these techniques using tooth models. The third session will feature a video on cariogenic food consumption, followed by an interactive educational game in which participants identify non-cariogenic foods.
BEHAVIORAL	Conventional Oral Health Talk	A conventional oral health talk will be delivered to participants in both the control and intervention groups. The talk will cover key messages on oral health, including the importance of oral health, consequences of poor oral health and recommended oral health practices.

Timeline

• Start date: 2025-08-04
• Primary completion: 2025-12-05
• Completion: 2025-12-05
• First posted: 2025-07-31
• Last updated: 2026-01-14

Locations

1 site across 1 country: Malaysia