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Screening of Candidate Phylum Radiation and their symbiotic hosts in human oral samples

Screening of Candidate Phylum Radiation and their symbiotic hosts in human oral samples

Status
Active, not recruiting
Phases
Unknown
Study type
Observational
Source
ChiCTR
Registry ID
ChiCTR2600126709
Enrollment
Unknown
Registered
2026-06-14
Start date
2026-06-20
Completion date
Unknown
Last updated
2026-06-22

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

Conditions

Stage III/IV Periodontitis

Interventions

Periodontitis group :None

Sponsors

Peking University Hospital of Stomatology
Lead Sponsor

Eligibility

Sex/Gender
All
Age
20 Years to 70 Years

Inclusion criteria

Inclusion criteria: 1.Patients diagnosed with chronic periodontal disease according to the consensus of the American Academy of Periodontology and the European Academy of Periodontology (2017), as well as volunteers without detected periodontal inflammation; 2.The patient has at least 15 remaining teeth in the mouth. More than 30% of the teeth have probing pocket depths of >= 5 mm, and there is bleeding during probing. Among them, the probing pocket depth of at least 2 or more teeth is >= 7 mm; 3.The patient signed the informed consent form; 4.Aged over 20 years old and under 70 years old;

Exclusion criteria

Exclusion criteria: 1.Pregnant and lactating women; 2.Have used local or systemic antibiotics or anti-inflammatory drugs within the past three months; 3.Any oral lesions or oral cancer, a history of chemotherapy within the past 5 years, or a history of radiotherapy in the head and neck area; 4.Has a history of chronic systemic diseases (except for T2DM); 5.The patient has a physical disability or mental disorder that affects their ability to maintain oral hygiene. 6.There are situations that may affect the completion of the research or interfere with the analysis results, such as non-cooperation and concealing medical history.

Design outcomes

Primary

MeasureTime frame
Probing Depth;Relative abundance of subgingival microbiota;

Secondary

MeasureTime frame
Plaque Index;Bleeding Index;

Countries

China

Contacts

Public ContactWang Shaoying

Peking University Hospital of Stomatology

13247193850@163.com+86 10 82195773

Outcome results

None listed

Source: ChiCTR (via WHO ICTRP) · Data processed: Jun 29, 2026