International Journal of Medical Science and Pharmaceutical Research

Oral and dental health is an essential component of general health that remains a common issue among adolescents. The 2018 Indonesian Basic Health Research (Riskesdas) reported that 73.4% of adolescents suffer from dental caries, yet only 2.8% brush their teeth at the correct times. In Gorontalo City, most students show poor Oral Hygiene Index Simplified (OHIS) scores despite regular oral health education. This study aimed to analyze the effectiveness of digital media-based education on Tooth Brushing Practice (TBP) in reducing OHIS scores among students at SMP Negeri 4 Gorontalo City. This quasi-experimental study employed a pre-test and post-test one group design with an intervention consisting of a 3–6-minute educational video demonstrating the WHO-standard tooth brushing technique, delivered for seven consecutive days. The results showed a significant decrease in OHIS scores after the TBP digital education compared to before the intervention. Digital education was proven to improve students’ understanding and practical skills in proper tooth brushing techniques. The novelty of this study lies in the use of interactive digital media through TBP-based video content, directly measuring behavioral changes through OHIS reduction rather than relying solely on knowledge improvement. In conclusion, digital media-based education effectively enhances tooth brushing behavior and reduces OHIS scores among adolescents, making it an innovative and practical approach for school-based oral health promotion programs.

Digital education; Tooth brushing practice; Oral hygiene index simplified; Adolescent; Oral health.

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