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.
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Change in Oral Hygiene Status Assessed Using the Simplified Debris Index (DI-S)
Timeframe: Pre-Intervention, One Month Post-Intervention and Three Months Post-Intervention