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Involvement of Archaea in Carious Disease

Involvement of Archaea in Carious Disease

Status
Recruiting
Phases
Unknown
Study type
Interventional
Source
ClinicalTrials.gov
Registry ID
NCT06787261
Acronym
CARIARCHAE
Enrollment
200
Registered
2025-01-22
Start date
2026-02-19
Completion date
2028-02-01
Last updated
2026-02-23

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

Conditions

Dental Caries

Keywords

Dental caries

Brief summary

Dental caries is a major public health probleme the result of hard tissue demineralization and oral microbiota changes. Methanogenic archaea, mainly Methanobrevibacter oralis, are associated with various oral problems, including pathologies periodontal. Previous research has not really studied the Archaea in carious lesions, hence the importance of our study. Our study aims to explore their potential role in the the development of caries by analysing their prevalence and their quantification in relation to the carious risk individual. The aim is to improve understanding of the Cavity microbiology to advance management of this pathology in terms of prevention or of treatment. Our team is particularly competent in the field of Archaea, especially in the cultivation of Archaea methanogens since we have a dedicated platform. We also discovered the first human Nanoarchaea, opening up a whole new possible search field.

Interventions

OTHERsaliva sample

saliva sample

OTHERcarious tissue samples

carious tissue samples

Sponsors

Assistance Publique Hopitaux De Marseille
Lead SponsorOTHER

Study design

Allocation
NON_RANDOMIZED
Intervention model
PARALLEL
Primary purpose
OTHER
Masking
NONE

Eligibility

Sex/Gender
ALL
Age
18 Years to No maximum
Healthy volunteers
No

Inclusion criteria

* Male or female of legal age. * Patient who is a beneficiary or entitled beneficiary of a social security * Patient under the care of the Restorative and Preventive Dentistry of the PROMOD - Timone Dentistry Unit. * Patients capable of giving written consent.

Exclusion criteria

Patient in a period of exclusion from another research protocol at the time of signing the consent form, Subjects covered by articles L1121-5 to 1121-8 of the Public Health public health code (minor patients, patients of full age under guardianship, patients deprived of their liberty, pregnant or breast-feeding), A person who does not have a sufficient command of reading and understanding of the French language to be able to consent to take part in the research Presence of periodontitis (gingivitis not being a criterion for a criterion for non-inclusion). Antibiotics taken in the previous month. Use of mouthwash in the previous 7 days.

Design outcomes

Primary

MeasureTime frame
Presence/absence of Archaea in participants' saliva samples.36 months

Secondary

MeasureTime frame
Quantity of Archaea in the salivary sample of the participants.36 months
Viability/non-viability of Archaea in carious lesions36 months

Countries

France

Contacts

CONTACTGiuliani alexandra project manager
alexandra.giuliani@ap-hm.fr+33491382747
STUDY_DIRECTORjean-olivier ARNAUD GENERAL DIRECTOR

Assistance Publique Hopitaux De Marseille

Outcome results

None listed

Source: ClinicalTrials.gov · Data processed: Feb 24, 2026