NCT05307068

Brief Summary

Periodontitis is a multifactorial chronic inflammatory disease characterized by the destruction of the tissues supporting the tooth. The incidence and rate of progression of periodontal destruction involves a complex interaction between periodontopathic bacteria and immune system cells. The complex cytokine network that mediates the immune response includes pro-inflammatory cytokines, anti-inflammatory cytokines, and specific cytokine receptors. Cytokines act as messengers to initiate, mediate, and control immune and inflammatory responses. It is known that the interaction of pro- and anti-inflammatory cytokines plays a very important role in the progression of periodontitis . The immune response to infection is regulated by the balance between T helper (Th)1 and Th2-type cytokines. Since Th1, Th2, and monocyte-derived cytokines in gingival tissues and gingival crevicular fluid (GCF) play a role in periodontal inflammation, even a minimal imbalance in cytokine production may affect the induction of bone and collagen resorption in periodontal disease. For this reason, cytokines in inflamed periodontal tissues, which are the focus of many studies, are of great importance in the progression of periodontal disease. In this study, our aim is to evaluate the local cytokine response in relation to the clinical periodontal status by determining the IL-10, IL-12 and IL-18 concentrations in the gingival crevicular fluid of individuals with grade B-C stage III-IV periodontitis according to the 2017 Classification of Periodontal and Peri-implant Diseases and Conditions. In this way, besides clinical and radiographic determinations in the diagnosis of periodontal disease, IL-10, IL-12 and IL-18 are measured to evaluate whether these markers have an effect on the diagnosis of the disease.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
60

participants targeted

Target at P25-P50 for all trials

Timeline
Completed

Started Apr 2022

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

First Submitted

Initial submission to the registry

January 24, 2022

Completed
2 months until next milestone

First Posted

Study publicly available on registry

April 1, 2022

Completed
14 days until next milestone

Study Start

First participant enrolled

April 15, 2022

Completed
8 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 30, 2022

Completed
7 months until next milestone

Study Completion

Last participant's last visit for all outcomes

June 30, 2023

Completed
Last Updated

October 2, 2023

Status Verified

September 1, 2023

Enrollment Period

8 months

First QC Date

January 24, 2022

Last Update Submit

September 29, 2023

Conditions

Keywords

periodontitishealthy gingivagrade bgrade cstage IIIstage IV

Outcome Measures

Primary Outcomes (1)

  • Measurement of GCF samples

    Measurement of IL-10, IL-12, IL-18 levels in GCF with grade B-C stage III-IV periodontitis individuals

    GCF samples were collected after first week of clinical periodontal measurement. GCF was obtained using paper strips from the deepest gingival groove

Secondary Outcomes (1)

  • Measurement of GCF samples

    GCF samples were collected after first week of clinical periodontal measurement. GCF was obtained using paper strips from the deepest gingival groove

Study Arms (2)

Grade B-C stage III-IV periodontitis group

Grade B: Moderate Moderate bone loss is observed compared to biofilm and % Root Bone Loss/age 0.25 to 1.0 is determined as grade B. Stage III: Severe Consisted of individuals with interdental AL ≥5 mm, radiographic bone lose extending to middle or apical third of the root, PD≥6 mm and tooth loss due to periodontitis of ≤4. Grade C: Rapid Rapid bone loss is observed compared to biofilm and % Root Bone Loss/age \>1.0 is determined as grade C. Stage IV:Advanced Consisted of individuals with interdental AL ≥5 mm, radiographic bone lose extending to middle or apical third of the root, PD≥6 mm and tooth loss due to periodontitis of ≥5. Need for complex rehabilition due to: Masticatory dysfunction, Secondary occlusal trauma(tooth mobility degree ≥2) Severe ridge defect,Bite collapse, drifting, flaring. Less than 20 remaining teeth (10 opposing pairs)

Other: No intervention was applied to the groups the samples will be collected in terms of the diagnosis ( periodontitis, healthy)

Healthy control group

Consisted of individuals with clinically healthy gingiva on an intact periodontium who had a BOP score less than 10% and PD≤3mm, showed no attachment loss or radiographic bone loss.

Other: No intervention was applied to the groups the samples will be collected in terms of the diagnosis ( periodontitis, healthy)

Interventions

No intervention was applied to the groups the samples will be collected in terms of the diagnosis (periodontitis, healthy)

Grade B-C stage III-IV periodontitis groupHealthy control group

Eligibility Criteria

Age18 Years - 65 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodProbability Sample
Study Population

In our study individuals who have Grade B-C stage III-IV periodontal disease according to the 2017 Classification of Periodontal and Peri-implant Diseases and Conditions and individuals who have healthy gingiva will be selected

You may qualify if:

  • years old
  • Not having any systemic disease (diseases that do not affect the periodontal status)
  • Non-smoker
  • Have not received antibiotic treatment and/or used immunosuppressant medication in the last 6 months
  • Have not received any periodontal treatment in the last 6 months
  • No pregnancy and lactation
  • Not using any medication regularly
  • Having at least 20 teeth
  • Grade B-C stage III-IV periodontal disease according to the 2017 Classification of Periodontal and Peri-implant Diseases and Conditions
  • In patients who applied to Istanbul University Faculty of Dentistry, Department of Periodontology, periodontally healthy individuals who do not meet the above disease criteria, who do not have a history of periodontitis in any way, will be included in the study. Consisted of individuals with clinically healthy gingiva on an intact periodontium who had a BOP score less than 10% and PD≤3mm, showed no attachment loss or radiographic bone loss.

You may not qualify if:

  • Those with systemic modifying disease affecting periodontal status
  • Smoker
  • Have received antibiotic therapy or immunosuppressive therapy in the last 6 months
  • Previously received periodontal treatment in the last 6 months
  • Pregnancy and breastfeeding status
  • Regular use of drugs that will affect systemic health

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Istanbul University Faculty of Dentistry

Istanbul, Turkey (Türkiye)

Location

Related Publications (6)

  • Geng Y, Li L, Wang X, He F, Zhou Y, Yang M, Xu Y. Interleukin-10 polymorphisms affect the key periodontal pathogens in Chinese periodontitis patients. Sci Rep. 2018 Jun 13;8(1):9068. doi: 10.1038/s41598-018-26236-4.

  • Borilova Linhartova P, Danek Z, Deissova T, Hromcik F, Lipovy B, Szaraz D, Janos J, Fassmann A, Bartova J, Drizhal I, Izakovicova Holla L. Interleukin Gene Variability and Periodontal Bacteria in Patients with Generalized Aggressive Form of Periodontitis. Int J Mol Sci. 2020 Jul 2;21(13):4728. doi: 10.3390/ijms21134728.

  • Orozco A, Gemmell E, Bickel M, Seymour GJ. Interleukin-1beta, interleukin-12 and interleukin-18 levels in gingival fluid and serum of patients with gingivitis and periodontitis. Oral Microbiol Immunol. 2006 Aug;21(4):256-60. doi: 10.1111/j.1399-302X.2006.00292.x.

  • Pai B S, Pradeep AR. Correlations between Interleukin-33 and -1alpha Levels in Gingival Crevicular Fluid and Plasma in Patients with Chronic or Aggressive Periodontitis and Disease-free Subjects. Bull Tokyo Dent Coll. 2019 Dec 10;60(4):279-289. doi: 10.2209/tdcpublication.2019-0002. Epub 2019 Nov 22.

  • Park AY, Scott P. Il-12: keeping cell-mediated immunity alive. Scand J Immunol. 2001 Jun;53(6):529-32. doi: 10.1046/j.1365-3083.2001.00917.x.

  • Clarke IJ, Tilbrook AJ, Galloway DB, Earl CR, Findlay JK, de Kretser DM. Inhibin in rams. J Reprod Fertil Suppl. 1991;43:163-70. No abstract available.

Biospecimen

Retention: SAMPLES WITHOUT DNA

Gingival Crevicular Fluid

MeSH Terms

Conditions

Periodontitis

Condition Hierarchy (Ancestors)

Periodontal DiseasesMouth DiseasesStomatognathic Diseases

Study Officials

  • Emine Çifcibaşı, Assoc. Prof.

    Istanbul University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
PROSPECTIVE
Target Duration
15 Months
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
PhD student

Study Record Dates

First Submitted

January 24, 2022

First Posted

April 1, 2022

Study Start

April 15, 2022

Primary Completion

November 30, 2022

Study Completion

June 30, 2023

Last Updated

October 2, 2023

Record last verified: 2023-09

Data Sharing

IPD Sharing
Will not share

Only clinical istatical analyses and GCF samples analyses will be shared

Locations