PIPages
Labs

Erliang Zeng

University of Iowa, IA·Public Health & Epidemiology

Early childhood caries (ECC), tooth decay in very young children, is a common chronic disease and a costly public health problem, yet it can be prevented. Its causes fall into three groups.

Fields

Public Health & Epidemiology

Microbiology & Immunology

Computer Science

Topics

early childhood caries

tooth decay

dental caries

Grants
1 known grant, through Apr 2031

What they work on

  1. Test whether a Self-Determination Theory-based intervention keeps or restores a healthy oral microbial community in children from birth to age three, by comparing oral metagenomes between intervention and control groups from a completed clinical trial.
  2. Determine whether children who received the intervention carry more core healthy oral microbiome species and fewer genes linked to enamel demineralization and decay-causing bacteria.
  3. Model how oral microbiota connect to maternal knowledge, children's diets and oral health habits, using structural equation modeling, mixed-effects models and machine learning such as deep kernel Gaussian processes, to find the most influential ECC risk factors.

More about the research

Microbial causes involve the bacteria living in the mouth. Dietary causes involve what children eat and drink. Behavioral causes involve oral health habits and caregiver knowledge. An intervention based on Self-Determination Theory (SDT), a psychology framework that builds motivation by supporting people's sense of choice, competence and connection, has shown promise in preventing ECC among high-risk families. How it changes the mouth's microbes, and how those changes connect to diet and behavior, is not yet known.

Why it matters

Tooth decay in early childhood can harm children's health, learning and quality of life. By identifying which microbial, dietary and behavioral factors matter most when a motivation-based prevention program succeeds, this work could help refine prevention strategies for young children at high risk. It could also improve child oral health and lower health care costs.

Known grants

From NIH and NSF research grants. Labs often have other funding we can't see.

Impact of a Longitudinal Psychoeducational Intervention for Early Childhood Caries Prevention on the Oral Microbiome

NIH · Jul 2026 – Apr 2031

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The school

University of Iowa: 32 labs on PI Pages, $703M a year on research, 418 research doctorates a year.

More about University of Iowa

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