Clinical trial Recruiting at 1 site Interventional Ages 15 to 20

Remineralizing with nano-eggshell varnish, CPP-ACP paste, or fluoride varnish in teens with early tooth decay

Official title: Remineralizing Effect of Nano-eggshell, Casein Phosphopeptide Amorphous Calcium Phosphate (CPP-ACP), and Sodium Fluoride on Initial Enamel Caries: Randomized Controlled Trial

Run by Mansoura University · NCT07711132 · Data updated 2026-11-12

This randomized trial tests whether nano-eggshell varnish, CPP-ACP paste, or fluoride varnish can remineralize early enamel caries in adolescents aged 15–20.

Quick facts

Study typeInterventional
Ages15 Years to 20 Years
SexAll
Enrollment90 (estimated)
SponsorMansoura University
Academic / other
Locations1 site (Al Mansurah)
StatusRecruiting
StartedDecember 20, 2025
Main results expectedDecember 20, 2026
Study endsDecember 20, 2026
Registry record updatedJuly 17, 2026
Trial IDNCT07711132 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Adolescents aged 15–20 with 3–4 teeth showing ICDAS II scores of 1–2 and moderate-to-high caries risk.

Probably not a fit

Individuals without early enamel lesions or with low caries risk may not see a benefit from these interventions.

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

What this trial studies

In this randomized, three-arm study, adolescents aged 15 to 20 with initial enamel caries are assigned to nano-eggshell varnish, CPP-ACP paste, or sodium fluoride varnish. Remineralization and caries activity will be tracked over 12 months using DIAGNOdent readings, ICCMS criteria, and the DMFS index. The aim is to compare the effectiveness of each treatment in reducing caries progression and promoting remineralization. Participants are assessed at multiple time points to determine changes in lesion status and overall dental health. The study is conducted at Mansoura University’s Faculty of Dentistry with a lead sponsor and no listed collaborators.

Why it matters

Potential benefit: If successful, the findings could identify a more effective remineralization approach for early enamel caries in teens.

How similar studies have gone: Previous studies have explored remineralization strategies, with mixed but supportive evidence for fluoride and CPP-ACP; this trial adds a nano-eggshell option for comparison.

Who can join: the full rules

Show full inclusion / exclusion criteria
Inclusion Criteria:

Patients' ages should be 15-20 years. Patients should have at least three to four teeth with ICDAS II scores of 1-2. Patients should have moderate-to-high caries risk.

Exclusion Criteria:

Known hypersensitivity to one of the components of the material under study. Systemic disorders or medication interfering with normal salivary flow.

Where it's running

  • Faculty of Dentistry, Mansoura University
    Al Mansurah, Egypt
    Recruiting

Study contacts

Similar studies

Other studies for the same condition or treatment. Recruiting studies are listed first.

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.