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Resin Infiltration vs Ionomer-Based Fluoride Varnish for the Prevention of Post-Eruptive Breakdown in Molars With Mild MIH

Resin Infiltration Versus Ionomer-Based Fluoride Varnish to Prevent Post-Eruptive Breakdown in Molars With Mild Molar-Incisor Hypomineralization

Status
Completed
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT07443878
Acronym
MIH
Enrollment
17
Registered
2026-03-02
Start date
2023-09-23
Completion date
2024-09-30
Last updated
2026-03-04

For informational purposes only — not medical advice. Sourced from public registries and may not reflect the latest updates. Terms

Conditions

Molar Hypomineralization, Incisor

Keywords

Molar Hypomineralization, Incisor, Preventive Dentistry

Brief summary

round/Objective: The objective of this clinical trial is to evaluate the clinical efficacy of a resin infiltrant (Icon®, DMG) compared to an ionomer-based fluoride varnish (Clinpro XT®, 3M) in preventing post-eruptive enamel breakdown (PEB) in permanent molars with mild Molar Incisor Hypomineralization (MIH). Research Question: Can resin infiltration effectively prevent post-eruptive enamel breakdown in permanent molars with mild MIH compared to an ionomer-based fluoride varnish? Methodology: The researchers will compare the resin infiltrant Icon® (DMG) with Clinpro XT® Varnish (3M) to prevent post-eruptive enamel breakdown in permanent molars with mild MIH. Participants: Children aged 6 to 13 years presenting at least two permanent molars affected by mild MIH, with no prior structural loss or previous dental treatment. Requirement to attend follow-up evaluations at 15 days, 1 month, 3 months, and 6 months.

Interventions

OTHERResin Infiltrant (Icon®, DMG)

Application of a low-viscosity light-cured resin (Icon®) after surface pretreatment with 15% hydrochloric acid gel (Icon-Etch). The resin is applied to the affected permanent molar to seal the porous enamel and prevent post-eruptive breakdown.

OTHERVarnish-Modified Glass Ionomer (Clinpro XT®, 3M)

Application of a site-specific, light-cured varnish-modified glass ionomer (Clinpro XT®). It provides a physical barrier and long-term fluoride release to strengthen the hypomineralized enamel.

Sponsors

Universidad Autonoma de San Luis Potosí
Lead SponsorOTHER

Study design

Allocation
RANDOMIZED
Intervention model
CROSSOVER
Primary purpose
PREVENTION
Masking
NONE

Intervention model description

This is a split-mouth study design where each participant receives both interventions in different quadrants

Eligibility

Sex/Gender
ALL
Age
6 Years to 13 Years
Healthy volunteers
No

Inclusion criteria

* Participants with two or more permanent molars affected by mild Molar Incisor Hypomineralization (MIH), graded according to EAPD criteria. * Mild MIH-affected permanent molars with no history of prior dental treatment. * Fully erupted or partially erupted permanent molars * Permanent molars with MIH presenting ICDAS code 0, 1, or 2 (non-cavitated caries lesions). * Systemically healthy patients. * Patients (and/or legal guardians) who agree to participate, providing written informed consent and child assent.

Exclusion criteria

* Presence of only one permanent molar affected by MIH. * Permanent molars with MIH that already present post-eruptive breakdown (PEB). * Permanent molars with caries lesions classified as ICDAS 3 or higher. * Enamel defects of other etiologies in permanent molars (e.g., Amelogenesis Imperfecta, fluorosis, or hypoplasia). * Patients with systemic diseases or lack of cooperation during dental treatment

Design outcomes

Primary

MeasureTime frameDescription
Post-eruptive breakdown (PEB)6 monthsThe primary outcome is the occurrence of Post-Eruptive Breakdown (PEB), defined as the loss of enamel structural integrity resulting in cavitation or a clinical 'step-off' appearance within the hypomineralized area of the permanent molar. This will be recorded as a dichotomous variable (Presence/Absence) based on the European Academy of Paediatric Dentistry (EAPD) diagnostic criteria.

Countries

Mexico

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Mar 5, 2026