# Oral Bacteria and Immune System Problems Involved in Gum Disease (Periodontitis)

> **NCT01568697** · — · RECRUITING · sponsor: **National Institute of Dental and Craniofacial Research (NIDCR)** · enrollment: 700 (estimated)

## Conditions studied

- Immunosuppression
- Periodontal Disease
- Healthy Subjects
- Healthy Volunteer

## Interventions

_None listed._

## Key facts

- **NCT ID:** NCT01568697
- **Lead sponsor:** National Institute of Dental and Craniofacial Research (NIDCR)
- **Sponsor class:** NIH
- **Phase:** —
- **Study type:** OBSERVATIONAL
- **Status:** RECRUITING
- **Start date:** 2012-10-05
- **Primary completion:** —
- **Final completion:** —
- **Target enrollment:** 700 (ESTIMATED)
- **Last updated:** 2026-05-07


## Primary source

ClinicalTrials.gov registry: https://clinicaltrials.gov/study/NCT01568697

## Citation

> US National Library of Medicine, ClinicalTrials.gov registration NCT01568697, "Oral Bacteria and Immune System Problems Involved in Gum Disease (Periodontitis)". Retrieved via AI Analytics 2026-06-06 from https://api.ai-analytics.org/clinical/NCT01568697. Licensed CC0.

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