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Risk factors for dental caries in 5- to 7-year-old Chinese children: a cross-sectional study in Yuyao City

Geng-Yu Hu1, Wan-Ting Wang1, Fu-Bo Zhang1

  • 1Department of Stomatology, Yuyao Maternity and Child Health Care Hospital, Yuyao, China.

Frontiers in Public Health
|July 30, 2025
PubMed

Insights

Dental caries affects 34.2% of young children in rural China. Risk factors include rural living and bedtime feeding, while early mixed feeding is protective for pediatric dental health.

Area of Science:

  • Public Health
  • Pediatric Dentistry
  • Epidemiology

Background:

  • Pediatric dental caries is a significant global health issue, particularly in rural areas.
  • Dental caries is influenced by socioeconomic status, diet, and hygiene practices.
  • Early-life feeding patterns play a crucial role in children's dental health outcomes.

Purpose of the Study:

  • To identify risk factors for dental caries in 5- to 7-year-old children in Yuyao City, China.
  • To investigate the association between early-life feeding practices and dental caries.
  • To inform targeted oral health interventions in rural populations.

Main Methods:

  • A cross-sectional study was conducted in Yuyao City, China.
  • Data were collected from 415 children aged 5-7 years.
  • Social, dietary, and oral hygiene habits were analyzed to determine risk and protective factors.

Main Results:

  • The prevalence of dental caries was found to be 34.2%.
  • Significant risk factors included rural residence, bedtime feeding, and abnormal salivary pH.
  • Mixed feeding during the first six months of life emerged as a protective factor against dental caries.

Conclusions:

  • Early-life feeding practices are critical for pediatric dental health.
  • Targeted oral health education programs are essential for rural communities.
  • Understanding risk factors can guide interventions to reduce the burden of dental caries.
Abstract

Keywords:
childrendental cariesfeeding methodsmedicinerisk factors

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