Evaluating sealants and laser therapy for preventing dental issues in children with molar incisor hypomineralisation

EVALUATION of PREVENTIVE EFFECT of SEALANTS and LASER THERAPY on DENTAL CARIES and POSTERUPTIVE BREAKDOWN on MOLARS AFFECTED with MOLAR INCISOR HYPOMINERALISATION (RANDOMIZED CLINICAL TRIAL)

Not applicable Interventional Alexandria University · NCT06801561

This study is testing whether using special sealants or laser therapy can help prevent dental problems in children aged 6-9 who have weak spots on their molars.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment134 (estimated)
Ages6 Years to 9 Years
SexAll
SponsorAlexandria University Academic / other
Locations1 site (Alexandria)
Trial IDNCT06801561 on ClinicalTrials.gov

What this trial studies

This clinical trial aims to assess the effectiveness of glass ionomer sealants and laser therapy in preventing dental caries and post-eruptive breakdown in children aged 6-9 years with molar incisor hypomineralisation. The study will involve 134 children who have at least one first permanent molar affected by MIH but without any carious lesions or post-eruptive breakdown. Participants will be randomly assigned to receive either the sealant or laser therapy, and their dental health will be monitored over time to evaluate the outcomes of these interventions.

Who should consider this trial

Good fit: Ideal candidates for this study are healthy children aged 6-9 years with at least one first permanent molar affected by molar incisor hypomineralisation without any carious lesions.

Not a fit: Patients with active carious lesions or significant dentin loss requiring restorative therapy will not benefit from this study.

Why it matters

Potential benefit: If successful, this study could provide effective preventive measures for dental caries and breakdown in children with molar incisor hypomineralisation.

How similar studies have performed: While there is limited data on the specific combination of sealants and laser therapy for MIH, similar preventive approaches have shown promise in managing dental caries in other populations.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* 6-9 years old children (29)
* One tooth with MIH with no PEB according to evaluation criteria proposed by Ghanim (2017) (APPENDIX I) (30) and ICDAS scores 0, 1 and 2 (APPENDIX II) (31)
* Good overall health (ASA I) (APPENDIX III) (32)

Exclusion Criteria:

* First permanent molars with active carious lesions with ICDAS scores 5 and 6 (Appendix II) or defective restorations (31)
* Sufficient dentin loss that requires restorative therapy
* Any clinical signs of failure (abscess, fistula)

Where this trial is running

Alexandria

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions Molar Incisor HypomineralizationMolar Incisor Hypomineralisationlasersealant
Last reviewed 2026-06-14 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.