School-based fluoride mouth-rinse program dissemination associated with decreasing dental caries inequalities between Japanese Prefectures: An ecological study

Yusuke Matsuyama, Jun Aida, Katsuhiko Taura, Kazunari Kimoto, Yuichi Ando, Hitoshi Aoyama, Manabu Morita, Kanade Ito, Shihoko Koyama, Akihiro Hase, Toru Tsuboya, Ken Osaka

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

Background: Dental caries inequalities still severely burden individuals' and society's health, even in countries where fluoride toothpastes are widely used and the incidence of dental caries has been decreasing. School-based fluoride mouth-rinse (S-FMR) programs, a population strategy for dental caries prevention, might decrease dental caries inequalities. This study investigated the association between S-FMR and decreasing dental caries prevalence and caries-related inequalities in 12-year-olds by Japanese prefecture. Methods: We conducted an ecological study using multi-year prefecture-level aggregated data of children born between 1994 and 2000 in all 47 Japanese prefectures. Using two-level linear regression analyses (birth year nested within prefecture), the association between S-FMR utilization in each prefecture and 12-year-olds' decayed, missing, or filled permanent teeth (DMFT), which indicates dental caries experience in their permanent teeth, were examined. Variables that could explain DMFT inequalities between prefectures, such as dental caries experience at age 3 years, dentist density, and prefectural socioeconomic circumstances, were also considered. Results: High S-FMR utilization was significantly associated with low DMFT at age 12 (coefficient-0.011; 95% confidence interval,-0.018 to-0.005). S-FMR utilization explained 25.2% of the DMFT variance between prefectures after considering other variables. Interaction between S-FMR and dental caries experience at age 3 years showed that S-FMR was significantly more effective in prefectures where the 3-year-olds had high levels of dental caries experience. Conclusions: S-FMR, administered to children of all socioeconomic statuses, was associated with lower DMFT. Utilization of S-FMR reduced dental caries inequalities via proportionate universalism.

Original languageEnglish
Pages (from-to)563-571
Number of pages9
JournalJournal of Epidemiology
Volume26
Issue number11
DOIs
Publication statusPublished - 2016

Fingerprint

Dental Caries
Fluorides
Mouth
Tooth
Toothpastes
Population Control
Dentists
Social Class
Linear Models
Regression Analysis
Parturition
Confidence Intervals
Incidence
Health

Keywords

  • Dental caries
  • Fluoride
  • Health inequalities
  • Population approach

ASJC Scopus subject areas

  • Epidemiology

Cite this

School-based fluoride mouth-rinse program dissemination associated with decreasing dental caries inequalities between Japanese Prefectures : An ecological study. / Matsuyama, Yusuke; Aida, Jun; Taura, Katsuhiko; Kimoto, Kazunari; Ando, Yuichi; Aoyama, Hitoshi; Morita, Manabu; Ito, Kanade; Koyama, Shihoko; Hase, Akihiro; Tsuboya, Toru; Osaka, Ken.

In: Journal of Epidemiology, Vol. 26, No. 11, 2016, p. 563-571.

Research output: Contribution to journalArticle

Matsuyama, Y, Aida, J, Taura, K, Kimoto, K, Ando, Y, Aoyama, H, Morita, M, Ito, K, Koyama, S, Hase, A, Tsuboya, T & Osaka, K 2016, 'School-based fluoride mouth-rinse program dissemination associated with decreasing dental caries inequalities between Japanese Prefectures: An ecological study', Journal of Epidemiology, vol. 26, no. 11, pp. 563-571. https://doi.org/10.2188/jea. JE20150255
Matsuyama, Yusuke ; Aida, Jun ; Taura, Katsuhiko ; Kimoto, Kazunari ; Ando, Yuichi ; Aoyama, Hitoshi ; Morita, Manabu ; Ito, Kanade ; Koyama, Shihoko ; Hase, Akihiro ; Tsuboya, Toru ; Osaka, Ken. / School-based fluoride mouth-rinse program dissemination associated with decreasing dental caries inequalities between Japanese Prefectures : An ecological study. In: Journal of Epidemiology. 2016 ; Vol. 26, No. 11. pp. 563-571.
@article{5dfa1d4d905345daa7b05f8e0ea5b8f0,
title = "School-based fluoride mouth-rinse program dissemination associated with decreasing dental caries inequalities between Japanese Prefectures: An ecological study",
abstract = "Background: Dental caries inequalities still severely burden individuals' and society's health, even in countries where fluoride toothpastes are widely used and the incidence of dental caries has been decreasing. School-based fluoride mouth-rinse (S-FMR) programs, a population strategy for dental caries prevention, might decrease dental caries inequalities. This study investigated the association between S-FMR and decreasing dental caries prevalence and caries-related inequalities in 12-year-olds by Japanese prefecture. Methods: We conducted an ecological study using multi-year prefecture-level aggregated data of children born between 1994 and 2000 in all 47 Japanese prefectures. Using two-level linear regression analyses (birth year nested within prefecture), the association between S-FMR utilization in each prefecture and 12-year-olds' decayed, missing, or filled permanent teeth (DMFT), which indicates dental caries experience in their permanent teeth, were examined. Variables that could explain DMFT inequalities between prefectures, such as dental caries experience at age 3 years, dentist density, and prefectural socioeconomic circumstances, were also considered. Results: High S-FMR utilization was significantly associated with low DMFT at age 12 (coefficient-0.011; 95{\%} confidence interval,-0.018 to-0.005). S-FMR utilization explained 25.2{\%} of the DMFT variance between prefectures after considering other variables. Interaction between S-FMR and dental caries experience at age 3 years showed that S-FMR was significantly more effective in prefectures where the 3-year-olds had high levels of dental caries experience. Conclusions: S-FMR, administered to children of all socioeconomic statuses, was associated with lower DMFT. Utilization of S-FMR reduced dental caries inequalities via proportionate universalism.",
keywords = "Dental caries, Fluoride, Health inequalities, Population approach",
author = "Yusuke Matsuyama and Jun Aida and Katsuhiko Taura and Kazunari Kimoto and Yuichi Ando and Hitoshi Aoyama and Manabu Morita and Kanade Ito and Shihoko Koyama and Akihiro Hase and Toru Tsuboya and Ken Osaka",
year = "2016",
doi = "10.2188/jea. JE20150255",
language = "English",
volume = "26",
pages = "563--571",
journal = "Journal of Epidemiology",
issn = "0917-5040",
publisher = "Japan Epidemiology Association",
number = "11",

}

TY - JOUR

T1 - School-based fluoride mouth-rinse program dissemination associated with decreasing dental caries inequalities between Japanese Prefectures

T2 - An ecological study

AU - Matsuyama, Yusuke

AU - Aida, Jun

AU - Taura, Katsuhiko

AU - Kimoto, Kazunari

AU - Ando, Yuichi

AU - Aoyama, Hitoshi

AU - Morita, Manabu

AU - Ito, Kanade

AU - Koyama, Shihoko

AU - Hase, Akihiro

AU - Tsuboya, Toru

AU - Osaka, Ken

PY - 2016

Y1 - 2016

N2 - Background: Dental caries inequalities still severely burden individuals' and society's health, even in countries where fluoride toothpastes are widely used and the incidence of dental caries has been decreasing. School-based fluoride mouth-rinse (S-FMR) programs, a population strategy for dental caries prevention, might decrease dental caries inequalities. This study investigated the association between S-FMR and decreasing dental caries prevalence and caries-related inequalities in 12-year-olds by Japanese prefecture. Methods: We conducted an ecological study using multi-year prefecture-level aggregated data of children born between 1994 and 2000 in all 47 Japanese prefectures. Using two-level linear regression analyses (birth year nested within prefecture), the association between S-FMR utilization in each prefecture and 12-year-olds' decayed, missing, or filled permanent teeth (DMFT), which indicates dental caries experience in their permanent teeth, were examined. Variables that could explain DMFT inequalities between prefectures, such as dental caries experience at age 3 years, dentist density, and prefectural socioeconomic circumstances, were also considered. Results: High S-FMR utilization was significantly associated with low DMFT at age 12 (coefficient-0.011; 95% confidence interval,-0.018 to-0.005). S-FMR utilization explained 25.2% of the DMFT variance between prefectures after considering other variables. Interaction between S-FMR and dental caries experience at age 3 years showed that S-FMR was significantly more effective in prefectures where the 3-year-olds had high levels of dental caries experience. Conclusions: S-FMR, administered to children of all socioeconomic statuses, was associated with lower DMFT. Utilization of S-FMR reduced dental caries inequalities via proportionate universalism.

AB - Background: Dental caries inequalities still severely burden individuals' and society's health, even in countries where fluoride toothpastes are widely used and the incidence of dental caries has been decreasing. School-based fluoride mouth-rinse (S-FMR) programs, a population strategy for dental caries prevention, might decrease dental caries inequalities. This study investigated the association between S-FMR and decreasing dental caries prevalence and caries-related inequalities in 12-year-olds by Japanese prefecture. Methods: We conducted an ecological study using multi-year prefecture-level aggregated data of children born between 1994 and 2000 in all 47 Japanese prefectures. Using two-level linear regression analyses (birth year nested within prefecture), the association between S-FMR utilization in each prefecture and 12-year-olds' decayed, missing, or filled permanent teeth (DMFT), which indicates dental caries experience in their permanent teeth, were examined. Variables that could explain DMFT inequalities between prefectures, such as dental caries experience at age 3 years, dentist density, and prefectural socioeconomic circumstances, were also considered. Results: High S-FMR utilization was significantly associated with low DMFT at age 12 (coefficient-0.011; 95% confidence interval,-0.018 to-0.005). S-FMR utilization explained 25.2% of the DMFT variance between prefectures after considering other variables. Interaction between S-FMR and dental caries experience at age 3 years showed that S-FMR was significantly more effective in prefectures where the 3-year-olds had high levels of dental caries experience. Conclusions: S-FMR, administered to children of all socioeconomic statuses, was associated with lower DMFT. Utilization of S-FMR reduced dental caries inequalities via proportionate universalism.

KW - Dental caries

KW - Fluoride

KW - Health inequalities

KW - Population approach

UR - http://www.scopus.com/inward/record.url?scp=84995948267&partnerID=8YFLogxK

UR - http://www.scopus.com/inward/citedby.url?scp=84995948267&partnerID=8YFLogxK

U2 - 10.2188/jea. JE20150255

DO - 10.2188/jea. JE20150255

M3 - Article

C2 - 27108752

AN - SCOPUS:84995948267

VL - 26

SP - 563

EP - 571

JO - Journal of Epidemiology

JF - Journal of Epidemiology

SN - 0917-5040

IS - 11

ER -