Clinical trial Recruiting at 1 site Observational Ages 8 to 55

Analyzing dental enamel defects using color measurement techniques

Official title: Colorimetric Comparison of Email Defects Using Spectrophotometric and Computer Techniques and Biological, Structural and Physico-chemical Analyses of Teeth or Pathological Enamel

Run by Assistance Publique - Hôpitaux de Paris · NCT04704089 · Data updated 2026-11-12

This study is testing a new way to check for enamel problems in teeth, like discoloration and defects, to help people with conditions like Amelogenesis Imperfecta and dental fluorosis.

More Molar Incisor Hypomineralization trials

Quick facts

Study typeObservational
Ages8 Years to 55 Years
SexAll
Enrollment80 (estimated)
SponsorAssistance Publique - Hôpitaux de Paris
Academic / other
Drugs / interventionschemotherapy
Locations1 site (Paris)
StatusRecruiting
StartedJuly 18, 2022
Main results expectedApril 18, 2026
Study endsApril 18, 2026
Registry record updatedJuly 3, 2025
Trial IDNCT04704089 on ClinicalTrials.gov

Is this trial a fit for you?

Likely a good fit

Ideal candidates are individuals aged 8 to 55 who have one of the specified enamel anomalies.

Probably not a fit

Patients with pre-eruptive anomalies limited to molars or those with other types of hypomineralization may not benefit from this study.

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

What this trial studies

This observational study focuses on the analysis of enamel defects, specifically targeting conditions such as Amelogenesis Imperfecta, dental fluorosis, and Molar Incisor Hypomineralization. It employs a spectrophotometer to measure tooth colors as a non-invasive diagnostic tool for early detection of enamel abnormalities. Participants will undergo screening and follow-up visits where dental samples will be collected for biological, structural, and physicochemical analyses. The study aims to enhance understanding of these enamel pathologies and improve diagnostic methods.

Why it matters

Potential benefit: If successful, this study could lead to improved early diagnosis and management of enamel defects, benefiting patients with these conditions.

How similar studies have gone: While similar studies have explored enamel defects, the specific use of a spectrophotometer for early diagnosis in this context is relatively novel.

Who can join: the full rules

Show full inclusion / exclusion criteria
For patients :

Inclusion Criteria :

1. Age between 8 and 55 years old
2. Carrier of one of the following 3 quantitative pre-eruptive enamel anomalies : AIH, dental fluorosis or MIH
3. Information and collection of the non-opposition of the adult patient or of the representative(s) of parental authority present for the minors.

Criteria for non-inclusion :

1. Pregnant or breastfeeding woman
2. Under guardianship or curators
3. Opposition of the minor patient
4. Presenting pre-eruptive anomalies only on the molars (the spectrophotometer can only take pictures of the anterior dental sector (incisors and canines)).
5. Other types of hypomineralization (post-eruptive, of traumatic or infectious origin, idiopathic).
6. Having undergone radiotherapy or chemotherapy inducing dental and periodontal damage.
7. Having systemic abnormalities (unbalanced diseases), haemochromatosis, porphyria
8. Under medication likely to disturb the coloring of the teeth

For witnesses :

Inclusion Criteria :

1. Age between 8 and 55 years old
2. Information and collection of the non-opposition of the adult witness or of the representative(s) of parental authority present for the minors.
3. Free of any anomaly of tooth structure, exogenous dyschromia and carious lesions.

Criteria for non-inclusion :

1. Pregnant or breastfeeding woman
2. Under guardianship or curators
3. Opposition of the minor witness
4. Carrier of a quantitative pre-eruptive enamel anomaly
5. Polycarpus (preventing the diagnosis of amyl hypomineralization)

Where it's running

  • Service d'odontologie, Hôpital Pitié-Salpêtrière
    Paris, France
    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.