How Smoking Affects Immune Responses Around Dental Implants
Official title: Impact of Smoking on Th1/Th2-M1/M2 Cytokine Balance and B-Cell Immune Responses in Peri-Implant Health and Disease
Run by Gazi University · NCT07750171 · Data updated 2026-11-12
This study tests how smoking changes the body's immune response around dental implants in people with healthy implants, peri-implant mucositis, or peri-implantitis.
Quick facts
| Study type | Observational |
|---|---|
| Ages | 21 Years to 75 Years |
| Sex | All |
| Enrollment | 216 (estimated) |
| Sponsor | Gazi University Academic / other |
| Drugs / interventions | radiation |
| Locations | 1 site (Ankara, Ankara) |
| Status | Recruiting |
| Started | June 1, 2026 |
| Main results expected | October 1, 2026 |
| Study ends | December 1, 2026 |
| Registry record updated | September 17, 2026 |
| Trial ID | NCT07750171 on ClinicalTrials.gov |
Is this trial a fit for you?
✓Likely a good fit
Adults with at least one functional dental implant and a diagnosis of healthy peri-implant tissue, peri-implant mucositis, or initial peri-implantitis (PD 6–7 mm).
✕Probably not a fit
Some participants may not directly benefit if biomarkers do not translate into clinical tools or if no differences are found between smokers and non-smokers.
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 compares smokers and non-smokers who have at least one functioning dental implant and either healthy tissue, peri-implant mucositis, or peri-implantitis. Researchers will collect fluid samples around implants to measure inflammatory and immune-related proteins to understand smoking’s impact on the local response. The goal is to identify biological markers that may help gauge disease risk and severity in the peri-implant space. No interventions are described; the study focuses on observing existing conditions and immune factors. Participants must meet specific criteria and avoid recent periodontal therapies or systemic illnesses that could affect results.
Why it matters
Potential benefit: If successful, the findings could improve understanding of smoking-related risks and help identify biomarkers to assess peri-implant disease severity.
How similar studies have gone: Previous research has linked smoking to worsened peri-implant outcomes, supporting the exploration of immune markers in this area.
Who can join: the full rules
Show full inclusion / exclusion criteria
Inclusion Criteria: * willingness to participate in the study; * having at least one dental implant that has been in function for at least one year; * having an implant diagnosed with peri-implant health, peri-implant mucositis, or initial peri-implantitis according to the study definitions; for the initial peri-implantitis group, having an implant with PD of 6-7 mm. Exclusion Criteria: * having received periodontal therapy, oral decontamination treatment, antibiotics, or steroids within the last six months before study initiation; * being pregnant or breastfeeding; * having rheumatoid arthritis, lupus erythematosus, or poorly controlled systemic diseases such as diabetes or hypertension; * having a history of radiation therapy or cancer therapy.
Where it's running
-
Gazi University
Ankara, Ankara, Turkey (Türkiye) Recruiting
Study contacts
- Principal investigator: Buse Naz Büyükakçalı, DDS — Gazi University
- Study coordinator: Buse Naz Büyükakçalı, DDS
- Email: busenazbuyukakcali@gazi.edu.tr
- Phone: +905448024169
Similar studies
Other studies for the same condition or treatment. Recruiting studies are listed first.
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This study tests whether applying cold atmospheric plasma with the AmbiJet system after standard cleaning helps reduce inflammation around dental implants more quickly in adults with peri-implant mucositis or peri-implantitis.
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This study tests whether levels of vitamin D in peri-implant fluids and the antimicrobial peptide LL-37 differ in people with dental implants who have mucositis or peri-implantitis.
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This study is testing whether a non-surgical gum treatment can improve blood vessel health in people with gum disease and healthy individuals.
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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.