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All Journal Interdental Jurnal Kedokteran Gigi (IJKG)
Jain, Jithesh
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Biochemistry, Genetics & Molecular Biology Dentistry Medicine & Pharmacology Public Health

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Effect of a School-Delivered “Tobacco-Free Home” Campaign on Adolescent Smoking and Periodontal Risk: An Analysis of Psychosocial Pathways Pratama, I Wayan Agus Wirya; Lily, Gusti Ayu Yohanna; Dewi, I Gusti Agung Ayu Chandra Iswari; Jain, Jithesh
Interdental Jurnal Kedokteran Gigi (IJKG) Vol. 22 No. 1 (2026): Interdental Jurnal Kedokteran Gigi (IJKG)
Publisher : Fakultas Kedokteran Gigi, Universitas Mahasaraswati Denpasar

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.46862/interdental.v22i1.13917

Abstract

Introduction: Adolescent smoking contributes to early-onset periodontal disease, while institutional prevention programs often lack reinforcement at home. This study evaluated an 8-week psychosocial intervention integrating school-based Cognitive Behavioral Therapy (CBT) with a family-engaged Tobacco-Free Home (TFH) campaign to improve smoking behavior, risk attitudes, and social support. Materials and Methods: A quasi-experimental non-equivalent control group design involved 259 adolescent smokers in Bali, Indonesia. Intact classrooms were clustered into intervention (n = 139) and control (n = 120) groups. Psychosocial variables were measured at baseline and week 8. Data were analyzed using t-tests, Pearson correlation, and ANCOVA adjusted for baseline covariates. Result and Discussion: The intervention group showed significantly greater improvements in all outcomes compared with controls. Smoking behavior improved significantly (Δ = 0.76, p < 0.001), while ANCOVA confirmed strong group effects (F = 62.14). Positive correlations (r > 0.49) indicated that smoke-free home norms reinforced cognitive self-regulation, supporting social support as a key mediator. Conclusion: The CBT–TFH model effectively modified determinants of adolescent smoking behavior, with social support as an important catalyst for change. By extending intervention effects into the home environment, this strategy may help reduce long-term periodontal disease risk.
Co-Authors Dewi, I Gusti Agung Ayu Chandra Iswari Gusti Ayu Yohanna Lily Pratama, I Wayan Agus Wirya