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.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 8 Years to 55 Years |
| Sex | All |
| Enrollment | 80 (estimated) |
| Sponsor | Assistance Publique - Hôpitaux de Paris Academic / other |
| Drugs / interventions | chemotherapy |
| Locations | 1 site (Paris) |
| Status | Recruiting |
| Started | July 18, 2022 |
| Main results expected | April 18, 2026 |
| Study ends | April 18, 2026 |
| Registry record updated | July 3, 2025 |
| Trial ID | NCT04704089 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
- Study coordinator: Sophia HOUARI, MCU-PH
- Email: sophia.houari@aphp.fr
- Phone: 06 12 16 88 35
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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Improving smiles of children with amelogenesis imperfecta using anterior veneers
This project will try anterior veneer restorations on 11–14-year-olds with amelogenesis imperfecta to see if they improve oral health–related quality of life.
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This study tests whether resin infiltration can improve mild MIH in permanent incisors of schoolchildren aged 7 to 11 in Northern Vietnam.
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This study is testing two types of dental sealants to see which one works better for kids with weak teeth and can help make their dental visits easier.
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Using silver diamine fluoride to improve anesthesia in children with hypomineralized molars
This study is testing if applying silver diamine fluoride before dental work can help make local anesthesia work better and reduce pain for children with sensitive molars.
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Nano-hydroxyapatite toothpaste to improve color and reduce sensitivity in MIH-affected teeth
This trial will test whether nano-hydroxyapatite toothpaste can improve tooth color, reduce sensitivity, and lower cavity risk in children aged 6–12 with molar-incisor hypomineralization compared with regular fluoridated toothpaste.
How to take part
- Review the eligibility criteria above with your treating physician.
- Check the official listing on ClinicalTrials.gov for the latest contact details and recruitment status.
- Contact the study coordinator or principal investigator to ask for pre-screening. Pre-screening is free and never obligates you to enroll.