NCT06150066

Brief Summary

the primary aim of this project is to evaluate the microbiological and inflammatory effect of smoking status and smoking severity on periimplantitis lesions. The secondary aim is to compare the effect of smoking on periimplantitis and periodontal microbiota and inflammation in the same individuals. There will include 96 patients, equally divided into four groups: Smokers with peri-implantitis (n=24), non-smoker individuals with peri-implantitis (n=24), smokers with healthy peri-implant tissues (n=24), non-smoker individuals with healthy peri-implant tissues (n=24). Microbiological and biochemical analyses will be performed on the samples taken.

Trial Health

78
On Track

Trial Health Score

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

Enrollment
96

participants targeted

Target at P50-P75 for all trials

Timeline
8mo left

Started Nov 2023

Typical duration for all trials

Geographic Reach
2 countries

2 active sites

Status
active not recruiting

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

Study Progress80%
Nov 2023Dec 2026

First Submitted

Initial submission to the registry

October 17, 2023

Completed
1 month until next milestone

Study Start

First participant enrolled

November 21, 2023

Completed
8 days until next milestone

First Posted

Study publicly available on registry

November 29, 2023

Completed
7 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2024

Completed
2.5 years until next milestone

Study Completion

Last participant's last visit for all outcomes

December 21, 2026

Expected
Last Updated

July 20, 2025

Status Verified

July 1, 2025

Enrollment Period

7 months

First QC Date

October 17, 2023

Last Update Submit

July 16, 2025

Conditions

Outcome Measures

Primary Outcomes (10)

  • The evaluation of the abundance of Fusobacterium nucleatum

    The presence and abundance of Fusobacterium nucleatum will be analysed by real-time Q-PCR in plaque samples

    2 months

  • The evaluation of the abundance of Campylobacter rectus in plaque samples

    The presence and abundance of Campylobacter rectus will be analysed by real-time Q-PCR in plaque samples

    2 months

  • The evaluation of the abundance of Prevotella intermedia in plaque samples

    The presence and abundance of Prevotella intermedia will be analysed by real-time Q-PCR in plaque samplse

    2 months

  • The evaluation of the abundance of Aggregatinacter actinomycetemcomitans in plaque samples

    The presence and abundance of Aggregatinacter actinomycetemcomitans will be analysed by real-time Q-PCR in plaque samples

    2 months

  • The evaluation of the abundance of Porphyromonas gingivalis in plaque samples

    The presence and abundance of Porphyromonas gingivalis will be analysed by real-time Q-PCR in plaque samples

    2 months

  • The evaluation of the abundance of Tannerella forsythia in plaque samples

    The presence and abundance of Tannerella forsythia will be analysed by real-time Q-PCR in plaque samples

    2 months

  • The evaluation of the abundance of Treponema denticola in plaque samples

    The presence and abundance of Treponema denticola will be analysed by real-time Q-PCR in plaque samples

    2 months

  • The evaluation of the abundance of Saccharibacteria (TM7) in plaque samples

    The presence and abundance of Saccharibacteria (TM7) will be analyzed by real-time Q-PCR in plaque samplse

    2 months

  • The evaluation of the abundance of Streptococcus aureus in plaque samples

    The presence and abundance of Streptococcus aureus will be analysed by real-time Q-PCR in plaque samples

    2 months

  • The evaluation of the abundance of Actinomyces oris in plaque samples

    The presence and abundance of Actinomyces oris will be analysed by real-time Q-PCR in plaque samples

    2 months

Secondary Outcomes (4)

  • The evaluation of 8-OHdG, PARK7/DJ-1, and NADPH oxidase levels in GCF and saliva samples

    2 months

  • The evaluation of IL-1beta, IL-17A/E, and osteoprotegerin (OPG) levels in GCF and saliva samples

    2 months

  • The evaluation of MMP-8 and MMP-3 levels in GCF and saliva samples

    2 months

  • The evaluation of bone morphogenic protein (BMP)-2, epidermal growth factor (EGF), and vascular endothelial growth factor (VEGF) levels in GCF and saliva samples

    2 months

Study Arms (4)

Smokers with peri-implantitis

24 patients with smokers with peri-implantitis were included in this group.

Other: Recruiting samples

Non-smoker individuals with peri-implantitis

24 patients with non-smokers with peri-implantitis were included in this group.

Other: Recruiting samples

Smokers with healthy peri-implant tissues

24 patients with smokers with healthy peri-implant tissues were included in this group.

Other: Recruiting samples

Non-smoker individuals with healthy peri-implant tissues

24 patients with non-smokers with healthy peri-implant tissues were included in this group.

Other: Recruiting samples

Interventions

The GCF, plaque, and saliva samples will recruited from participants.

Non-smoker individuals with healthy peri-implant tissuesNon-smoker individuals with peri-implantitisSmokers with healthy peri-implant tissuesSmokers with peri-implantitis

Eligibility Criteria

Age18 Years - 70 Years
Sexall
Healthy VolunteersYes
Age GroupsAdult (18-64), Older Adult (65+)
Sampling MethodNon-Probability Sample
Study Population

The patients, who come to the Dokuz Eylùˆl, Gazi, and Ege University, Faculty of Dentistry, Department of Periodontology for routine periodontal control or treatment, will be included in the study.

You may qualify if:

  • years old
  • Body mass index (BMI) £30 kg/m
  • Presence of min 1 implant and 1 tooth for the implant groups
  • At least 1 year of implant loading for implant groups for the implant groups

You may not qualify if:

  • Systemic diseases such as diabetes mellitus, hepatic or renal disease, or other medical conditions or transmittable diseases (ASA score III, IV, V)
  • Pregnancy
  • Having undergone antibiotics in the previous 6 months
  • Periodontal treatment in the previous 6 months

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (2)

University of Bern

Bern, 3010, Switzerland

Location

Hatay Mustafa Kemal University

Antakya, Hatay, 31000, Turkey (TĂ¼rkiye)

Location

Related Publications (35)

  • Derks J, Ichioka Y, Dionigi C, Trullenque-Eriksson A, Berglundh J, Tomasi C, Graziani F. Prevention and management of peri-implant mucositis and peri-implantitis: A systematic review of outcome measures used in clinical studies in the last 10 years. Clin Oral Implants Res. 2023 May;34 Suppl 25:55-67. doi: 10.1111/clr.13925. Epub 2022 Jul 11.

    PMID: 35343614BACKGROUND
  • Berglundh T, Armitage G, Araujo MG, Avila-Ortiz G, Blanco J, Camargo PM, Chen S, Cochran D, Derks J, Figuero E, Hammerle CHF, Heitz-Mayfield LJA, Huynh-Ba G, Iacono V, Koo KT, Lambert F, McCauley L, Quirynen M, Renvert S, Salvi GE, Schwarz F, Tarnow D, Tomasi C, Wang HL, Zitzmann N. Peri-implant diseases and conditions: Consensus report of workgroup 4 of the 2017 World Workshop on the Classification of Periodontal and Peri-Implant Diseases and Conditions. J Clin Periodontol. 2018 Jun;45 Suppl 20:S286-S291. doi: 10.1111/jcpe.12957.

    PMID: 29926491BACKGROUND
  • Derks J, Tomasi C. Peri-implant health and disease. A systematic review of current epidemiology. J Clin Periodontol. 2015 Apr;42 Suppl 16:S158-71. doi: 10.1111/jcpe.12334.

    PMID: 25495683BACKGROUND
  • Genco RJ. Current View of Risk Factors for Periodontal Diseases. J Periodontol. 1996 Oct;67 Suppl 10S:1041-1049. doi: 10.1902/jop.1996.67.10s.1041.

    PMID: 29539789BACKGROUND
  • Roccuzzo A, Stahli A, Monje A, Sculean A, Salvi GE. Peri-Implantitis: A Clinical Update on Prevalence and Surgical Treatment Outcomes. J Clin Med. 2021 Mar 6;10(5):1107. doi: 10.3390/jcm10051107.

    PMID: 33800894BACKGROUND
  • Schwarz F, Derks J, Monje A, Wang HL. Peri-implantitis. J Clin Periodontol. 2018 Jun;45 Suppl 20:S246-S266. doi: 10.1111/jcpe.12954.

    PMID: 29926484BACKGROUND
  • Curtis MA, Diaz PI, Van Dyke TE. The role of the microbiota in periodontal disease. Periodontol 2000. 2020 Jun;83(1):14-25. doi: 10.1111/prd.12296.

    PMID: 32385883BACKGROUND
  • Marsh PD. Microbial ecology of dental plaque and its significance in health and disease. Adv Dent Res. 1994 Jul;8(2):263-71. doi: 10.1177/08959374940080022001.

    PMID: 7865085BACKGROUND
  • Buduneli N. Environmental factors and periodontal microbiome. Periodontol 2000. 2021 Feb;85(1):112-125. doi: 10.1111/prd.12355. Epub 2020 Nov 23.

    PMID: 33226700BACKGROUND
  • Axelsson P, Paulander J, Lindhe J. Relationship between smoking and dental status in 35-, 50-, 65-, and 75-year-old individuals. J Clin Periodontol. 1998 Apr;25(4):297-305. doi: 10.1111/j.1600-051x.1998.tb02444.x.

    PMID: 9565280BACKGROUND
  • de Araujo Nobre M, Mano Azul A, Rocha E, Malo P. Risk factors of peri-implant pathology. Eur J Oral Sci. 2015 Jun;123(3):131-9. doi: 10.1111/eos.12185. Epub 2015 Apr 20.

    PMID: 25894059BACKGROUND
  • Koldsland OC, Scheie AA, Aass AM. The association between selected risk indicators and severity of peri-implantitis using mixed model analyses. J Clin Periodontol. 2011 Mar;38(3):285-92. doi: 10.1111/j.1600-051X.2010.01659.x. Epub 2010 Dec 15.

    PMID: 21158898BACKGROUND
  • Romandini M, Lima C, Pedrinaci I, Araoz A, Soldini MC, Sanz M. Prevalence and risk/protective indicators of peri-implant diseases: A university-representative cross-sectional study. Clin Oral Implants Res. 2021 Jan;32(1):112-122. doi: 10.1111/clr.13684. Epub 2020 Dec 29.

    PMID: 33210772BACKGROUND
  • Farronato D, Azzi L, Giboli L, Maurino V, Tartaglia GM, Farronato M. Impact of Smoking Habit on Peri-Implant Indicators following Different Therapies: A Systematic Review. Bioengineering (Basel). 2022 Oct 18;9(10):569. doi: 10.3390/bioengineering9100569.

    PMID: 36290537BACKGROUND
  • Daubert DM, Weinstein BF, Bordin S, Leroux BG, Flemming TF. Prevalence and predictive factors for peri-implant disease and implant failure: a cross-sectional analysis. J Periodontol. 2015 Mar;86(3):337-47. doi: 10.1902/jop.2014.140438. Epub 2014 Nov 21.

    PMID: 25415249BACKGROUND
  • Lindquist LW, Carlsson GE, Jemt T. A prospective 15-year follow-up study of mandibular fixed prostheses supported by osseointegrated implants. Clinical results and marginal bone loss. Clin Oral Implants Res. 1996 Dec;7(4):329-36. doi: 10.1034/j.1600-0501.1996.070405.x.

    PMID: 9151599BACKGROUND
  • Karoussis IK, Salvi GE, Heitz-Mayfield LJ, Bragger U, Hammerle CH, Lang NP. Long-term implant prognosis in patients with and without a history of chronic periodontitis: a 10-year prospective cohort study of the ITI Dental Implant System. Clin Oral Implants Res. 2003 Jun;14(3):329-39. doi: 10.1034/j.1600-0501.000.00934.x.

    PMID: 12755783BACKGROUND
  • Schwarz F, Becker K, Sahm N, Horstkemper T, Rousi K, Becker J. The prevalence of peri-implant diseases for two-piece implants with an internal tube-in-tube connection: a cross-sectional analysis of 512 implants. Clin Oral Implants Res. 2017 Jan;28(1):24-28. doi: 10.1111/clr.12609. Epub 2015 Jul 14.

    PMID: 26178415BACKGROUND
  • Bizzarro S, Loos BG, Laine ML, Crielaard W, Zaura E. Subgingival microbiome in smokers and non-smokers in periodontitis: an exploratory study using traditional targeted techniques and a next-generation sequencing. J Clin Periodontol. 2013 May;40(5):483-92. doi: 10.1111/jcpe.12087. Epub 2013 Mar 13.

    PMID: 23489056BACKGROUND
  • Zhou N, Huang H, Liu H, Li Q, Yang G, Zhang Y, Ding M, Dong H, Mou Y. Microbiota analysis of peri-implant mucositis in patients with periodontitis history. Clin Oral Investig. 2022 Oct;26(10):6223-6233. doi: 10.1007/s00784-022-04571-1. Epub 2022 Jun 8.

    PMID: 35672515BACKGROUND
  • Chih SM, Cheng CD, Chen SH, Sung CE, Huang RY, Cheng WC. The impact of smoking on peri-implant microbiota: A systematic review. J Dent. 2023 Jun;133:104525. doi: 10.1016/j.jdent.2023.104525. Epub 2023 Apr 23.

    PMID: 37088258BACKGROUND
  • Tsigarida AA, Dabdoub SM, Nagaraja HN, Kumar PS. The Influence of Smoking on the Peri-Implant Microbiome. J Dent Res. 2015 Sep;94(9):1202-17. doi: 10.1177/0022034515590581. Epub 2015 Jun 29.

    PMID: 26124222BACKGROUND
  • Barbagallo G, Santagati M, Guni A, Torrisi P, Spitale A, Stefani S, Ferlito S, Nibali L. Microbiome differences in periodontal, peri-implant, and healthy sites: a cross-sectional pilot study. Clin Oral Investig. 2022 Mar;26(3):2771-2781. doi: 10.1007/s00784-021-04253-4. Epub 2021 Nov 26.

    PMID: 34826030BACKGROUND
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    PMID: 34415433BACKGROUND
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    PMID: 16174266BACKGROUND
  • SILNESS J, LOE H. PERIODONTAL DISEASE IN PREGNANCY. II. CORRELATION BETWEEN ORAL HYGIENE AND PERIODONTAL CONDTION. Acta Odontol Scand. 1964 Feb;22:121-35. doi: 10.3109/00016356408993968. No abstract available.

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    PMID: 1058834BACKGROUND
  • Caton JG, Armitage G, Berglundh T, Chapple ILC, Jepsen S, Kornman KS, Mealey BL, Papapanou PN, Sanz M, Tonetti MS. A new classification scheme for periodontal and peri-implant diseases and conditions - Introduction and key changes from the 1999 classification. J Periodontol. 2018 Jun;89 Suppl 1:S1-S8. doi: 10.1002/JPER.18-0157.

    PMID: 29926946BACKGROUND
  • Araujo MG, Lindhe J. Peri-implant health. J Clin Periodontol. 2018 Jun;45 Suppl 20:S230-S236. doi: 10.1111/jcpe.12952.

    PMID: 29926494BACKGROUND
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  • Sun Q, Shen ZY, Meng QT, Liu HZ, Duan WN, Xia ZY. The role of DJ-1/Nrf2 pathway in the pathogenesis of diabetic nephropathy in rats. Ren Fail. 2016;38(2):294-304. doi: 10.3109/0886022X.2015.1120119. Epub 2015 Dec 7.

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MeSH Terms

Conditions

Peri-ImplantitisCommunicable Diseases

Condition Hierarchy (Ancestors)

Periodontal DiseasesMouth DiseasesStomatognathic DiseasesInfectionsDisease AttributesPathologic ProcessesPathological Conditions, Signs and Symptoms

Study Officials

  • Alpdogan Kantarci, Prof

    Forsyth Institute

    STUDY DIRECTOR
  • Anton Sculean, Prof

    University of Bern

    STUDY CHAIR
  • Berrin Unsal, Prof

    Gazi University

    STUDY CHAIR
  • Aliye Akcali, Prof

    Dokuz Eylul University

    STUDY CHAIR
  • Aysegul Sari, PhD

    Mustafa Kemal University

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
observational
Observational Model
CASE CONTROL
Time Perspective
CROSS SECTIONAL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
PhD, Assistant professor

Study Record Dates

First Submitted

October 17, 2023

First Posted

November 29, 2023

Study Start

November 21, 2023

Primary Completion

July 1, 2024

Study Completion (Estimated)

December 21, 2026

Last Updated

July 20, 2025

Record last verified: 2025-07

Locations