Clinical trial Recruiting at 3 sites Interventional Ages 7 to 11

See if resin infiltration helps mild MIH in kids aged 7–11

Official title: Prevalence of Molar-Incisor Hypomineralization (MIH) and Effectiveness of Resin Infiltration Treatment

Run by Hanoi Medical University · NCT07873268 · Data updated 2026-11-12

This study tests whether resin infiltration can improve mild MIH in permanent incisors of schoolchildren aged 7 to 11 in Northern Vietnam.

More Molar Incisor Hypomineralization trials

Quick facts

Study typeInterventional
Ages7 Years to 11 Years
SexAll
Enrollment150 (estimated)
SponsorHanoi Medical University
Academic / other
Locations3 sites (Hanoi, North and 2 other locations)
StatusRecruiting
StartedOctober 2, 2023
Main results expectedOctober 10, 2026
Study endsDecember 10, 2026
Registry record updatedOctober 14, 2026
Trial IDNCT07873268 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are 7–11 year-olds with mild MIH on permanent incisors, intact tooth shape, and no post-eruptive enamel breakdown.

Probably not a fit

Children with severe MIH, enamel breakdown, or other dental or systemic conditions may not benefit from this intervention.

A plain-English reading of the study's rules. Only the study team can confirm whether you qualify.

What this trial studies

This study combines a cross-sectional description of MIH prevalence and risk factors with a controlled clinical trial to compare resin infiltration against control treatments for mild MIH lesions in permanent incisors. The trial will evaluate color change, lesion depth, and aesthetic outcomes over time, using ICON resin infiltration and comparator protocols such as fluoride varnish or observation. Participants are children aged 7–11 with mild MIH and intact incisors, recruited from selected schools in Hanoi and surrounding areas. Outcomes will be analyzed to determine the potential clinical benefits and inform future management guidelines for MIH in this population.

Why it matters

Potential benefit: If successful, resin infiltration could improve appearance and lesion factors for mild MIH in children.

How similar studies have gone: Previous studies with resin infiltration have shown potential color and structural improvements for MIH-affected teeth, but evidence varies by lesion severity.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Children aged 7 to 11 years.
* Children diagnosed with mild Molar-Incisor Hypomineralization (MIH) according to EAPD criteria on permanent incisors.
* Permanent incisors with intact anatomical shape, showing smooth enamel surfaces or minor defect depth without post-eruptive enamel breakdown (PEB).
* Children and parents/guardians willing to participate and sign the informed consent form.

Exclusion Criteria:

* Children with severe MIH lesions accompanied by post-eruptive enamel breakdown (PEB), atypical restorations, or dental caries.
* Permanent incisors with developmental anomalies, fluorosis, amelogenesis imperfecta, dentinogenesis imperfecta, or severe enamel hypoplasia.
* Teeth undergoing active orthodontic treatment or presenting with fixed orthodontic appliances.
* Non-vital teeth, teeth with symptoms of pulpitis, apical periodontitis, or history of endodontic treatment.
* Children with systemic diseases, chronic physical/mental conditions, or severe uncooperative behavior during dental procedures.

Where it's running

  • Hanoi Medical University
    Hanoi, North, Vietnam
    Recruiting
  • National Institute Of Hygiene And Epidemiology
    Hanoi, North, Vietnam
    Recruiting
  • National of Odonto-Stomatology, Hanoi
    Hanoi, North, Vietnam
    Recruiting

Similar studies

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How to take part

  1. Review the eligibility criteria above with your treating physician.
  2. Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
  3. Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.
Last reviewed 2026-11-14 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.