Indonesian Journal of Dental Medicine
Vol. 9 No. 2 (2026): Indonesian Journal of Dental Medicine

Body mass index and caries experience among 10-12-year-old elementary school children

Antonius Lucky Arnando (School of Dental Medicine, Universitas Ciputra Surabaya, Surabaya)
Gabriela Halim (School of Dental Medicine, Universitas Ciputra Surabaya, Surabaya)
Carera Iva Harryadi (School of Dental Medicine, Universitas Ciputra Surabaya, Surabaya)



Article Info

Publish Date
06 Jul 2026

Abstract

Background: Dental caries is among the most prevalent chronic diseases in children worldwide, assessed using the decayed-extracted filled teeth index for primary teeth and the Decayed-Missing-Filled Teeth index for permanent teeth. Nutritional status, measured by body mass index, may share common behavioral risk factors with dental caries. However, previous studies have reported inconsistent findings. Purpose: This study aimed to analyze the relationship between body mass index and combined caries experience among 10–12-year-old schoolchildren in Surabaya, Indonesia. Methods: This cross-sectional study included 51 schoolchildren aged 10–12 years at Elementary School (sekolah dasar negeri/SDN) Keputran, Surabaya. Body mass index was calculated from measured body weight and height. Dental caries was assessed according to World Health Organization criteria using the decayed-extracted-filled teeth and Decayed-MissingFilled Teeth indices. The combined caries score was correlated with body mass index using Spearman correlation and negative binomial regression at a significance level of p < 0.05. Results: The mean body mass index was 17.70 ± 4.04 kg/m². The mean decayed-extracted-filled teeth, Decayed-Missing-Filled Teeth, and combined scores were 0.78 ± 1.51, 1.35 ± 2.05, and 2.14 ± 2.48, respectively. Spearman correlation showed a significant negative correlation between body mass index and combined caries experience (r = -0.33; p = 0.018). Regression analysis indicated that each one-unit increase in body mass index was associated with a lower combined caries score (incidence rate ratio = 0.87; 95% confidence interval: 0.79–0.96; p = 0.007). Conclusion: Body mass index showed a significant inverse relationship with combined caries experience among 10–12-year-old schoolchildren. Higher body mass index values were associated with lower combined caries scores.

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Journal Info

Abbrev

IJDM

Publisher

Subject

Dentistry

Description

Indonesian Journal of Dental Medicine accepts original manuscripts in the many fields of dentistry, including research reports and literature reviews. The spread of fields include: Oral epidemiology, Oral health services research, Preventive dentistry, Oral health education and promotion, Clinical ...