Vol. 22 No. 1 (2026)
Medic Nutricia : Jurnal Ilmu Kesehatan, ISSN : 3025-8855

Articles

THE RELATIONSHIP BETWEEN ORAL HEALTH KNOWLEDGE ANDOHI-S SCORES AMONG 12–15 YEAR OLD CHILDREN AT AMANATUL UMMAH ISLAMIC BOARDING SCHOOL IN MOJOKERTO

Published 2026-01-27

  • Mega Moeharyono Putri
    • ,
  • Udijanto Tedjosasongko
    • ,
  • Arella Velika Karla Tiongin

Mega Moeharyono Putri
Airlangga University

Udijanto Tedjosasongko


Arella Velika Karla Tiongin


Abstract

Oral health among teenagers is influenced by knowledge, daily hygiene routines, and environmental factors. In boarding school settings, students often follow structured schedules and controlled dietary patterns, which may positively affect oral hygiene status. A more regulated routine can reduce snacking frequency and improve consistency in toothbrushing, contributing to lower plaque accumulation and better OHI-S scores. Strengthening oral health knowledge may further enhance these outcomes. This study analyzes the correlation between oral health knowledge and oral hygiene status (OHI-S) among 12–15 year-old students at Amanatul Ummah Islamic Boarding School, Mojokerto. This observational analytical study used a cross-sectional design involving 100 students selected through purposive sampling. Oral health knowledge was measured using a structured questionnaire, while oral hygiene status was assessed clinically using the Simplified Oral Hygiene Index (OHI-S). Data were analyzed using the nonparametric Spearman correlation test. Most respondents had moderate levels of oral health knowledge, while a majority demonstrated good oral hygiene status, a condition likely supported by the school’s controlled diet and consistent daily routines. Statistical analysis showed a strong and significant negative correlation between knowledge and OHI-S scores (r = –0.721; p < 0.01). In conclusion, there is a significant correlation between oral health knowledge and oral hygiene status. Higher knowledge levels are associated with better OHI-S scores, further supported by the structured environment of the boarding school, which contributes to maintaining good oral hygiene.

Keywords

Oral health knowledge, OHI-S, Teenagers, Boarding school, Human and Health

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