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Evaluation of Gingival Tissue Protein Levels of Serum Amyloid A Family Members

10. November 2026 aktualisiert von: Burcu KARADUMAN

The primary aim of this study is to determine the serum amyloid A (SAA) family protein levels in gingival tissue samples obtained from periodontally healthy and periodontitis patients and to evaluate their relationship with periodontal status. Additionally, the study aims to assess the potential effect of smoking on the amount of SAA proteins in gingival tissue.

Following ethical committee approval, a total of 108 individuals aged 18-65 years who attending to the Department of Periodontology, Biruni University Faculty of Dentistry, will be included in the study. The study groups will consist of 27 non-smoking individuals with periodontally healthy tissue, 27 smoking individuals with periodontally healthy tissue, 27 non-smoking individuals with stage III grade B periodontitis, and 27 smoking individuals with stage III grade C periodontitis. The non-smoking groups will include individuals who have never smoked, while the smoking groups will include individuals who, according to patient statements, have smoked at least 10 cigarettes per day for more than five years.

All participants will be informed about the study and their written consent will be obtained. Plaque score, probing depth, gingival margin position, clinical attachment level, and bleeding on probing will be measured by a calibrated investigator. Gingival tissue samples from periodontally healthy individuals will be collected during planned tooth extraction or periodontal surgical procedures such as gingivoplasty, gingivectomy, or clinical crown lengthening, independent of the study. Only gingival tissues that would otherwise be discarded as medical waste during routine treatment will be used. In individuals with periodontitis, granulation tissue removed during subgingival instrumentation as part of non-surgical periodontal treatment is planned for use. No additional tissue will be removed from the periodontal pocket wall or junctional epithelium for research purposes; the scope of the clinical procedure will not be expanded if suitable tissue cannot be obtained.

Gingival tissue samples will only be collected initially, stored at -80°C until the day of analysis, and evaluated using the ELISA method.

Studienübersicht

Status

Noch keine Rekrutierung

Bedingungen

Studientyp

Beobachtungs

Einschreibung (Geschätzt)

108

Kontakte und Standorte

Dieser Abschnitt enthält die Kontaktdaten derjenigen, die die Studie durchführen, und Informationen darüber, wo diese Studie durchgeführt wird.

Studienkontakt

Studieren Sie die Kontaktsicherung

Teilnahmekriterien

Forscher suchen nach Personen, die einer bestimmten Beschreibung entsprechen, die als Auswahlkriterien bezeichnet werden. Einige Beispiele für diese Kriterien sind der allgemeine Gesundheitszustand einer Person oder frühere Behandlungen.

Zulassungskriterien

Studienberechtigtes Alter

18 Jahre bis 65 Jahre (Erwachsene, Älterer Erwachsener)

Akzeptiert gesunde Freiwillige

Ja

Studienberechtigte Geschlechter

Alle

Probenahmeverfahren

Nicht-Wahrscheinlichkeitsprobe

Studienpopulation

Adults aged 18-65 years attending the Department of Periodontology, Faculty of Dentistry, Biruni University, who meet the study eligibility criteria. A total of 108 participants will be included in four groups of 27: periodontally healthy never smokers, periodontally healthy smokers, never smokers with stage III grade B periodontitis, and smokers with stage III grade C periodontitis. Periodontally healthy participants must have an independent clinical indication for tooth extraction or periodontal surgery during which gingival tissue would otherwise be discarded.

Beschreibung

Inclusion Criteria:

  • Participants must meet the periodontal disease and health criteria,
  • Be between 18-65 years of age,
  • Periodontally healthy participants must have an indication for tooth extraction or surgical periodontal treatment where a gingival tissue sample can be collected as part of the treatment plan,
  • Not have a systemic disease that may affect the pathogenesis of periodontal disease,
  • Not be pregnant or breastfeeding,
  • Not be using any medication that may affect the immune system,
  • Not have used antibiotics or anti-inflammatory drugs in the last 3 months,
  • Not have received any periodontal treatment in the last 3 months.

Exclusion Criteria:

  • Having diseases that may affect periodontal tissues, the course of periodontal disease, and the response to periodontal treatment,
  • Using medications that may affect periodontal tissues, the course of periodontal disease, and the response to periodontal treatment,
  • Being pregnant or breastfeeding,
  • Chronic alcohol use,
  • Using antibiotics or anti-inflammatory drugs within the last 3 months,
  • Having received periodontal treatment within the last 3 months.

Studienplan

Dieser Abschnitt enthält Einzelheiten zum Studienplan, einschließlich des Studiendesigns und der Messung der Studieninhalte.

Wie ist die Studie aufgebaut?

Designdetails

  • Beobachtungsmodelle: CASE_CONTROL
  • Zeitperspektiven: CROSS_SECTIONAL

Kohorten und Interventionen

Gruppe / Kohorte
Periodontally Healthy Non-smokers

Twenty-seven adults aged 18-65 years who have never smoked, with periodontal health on an intact periodontium, probing depths ≤3 mm, bleeding on probing at <10% of sites, no radiographic bone loss, and no history of periodontal disease.

Periodontally Healthy Smokers

Twenty-seven adults aged 18-65 years who report smoking ≥10 cigarettes per day for more than 5 years, with periodontal health on an intact periodontium, probing depths ≤3 mm, bleeding on probing at <10% of sites, no radiographic bone loss, and no history of periodontal disease.

Stage III Grade B Periodontitis

Twenty-seven adults aged 18-65 years who have never smoked and have stage III grade B periodontitis. Clinical criteria include clinical attachment loss ≥5 mm at ≥2 nonadjacent teeth, radiographic bone loss extending to the middle third of the root or beyond, loss of ≤4 teeth due to periodontitis, probing depths ≥6 mm, vertical bone loss ≥3 mm, and ≥20 remaining teeth. The percentage radiographic bone loss-to-age ratio will be 0.25-1.0.

Stage III Grade C Periodontitis

Twenty-seven adults aged 18-65 years who report smoking ≥10 cigarettes per day for more than 5 years and have stage III grade C periodontitis. Clinical criteria include clinical attachment loss ≥5 mm at ≥2 nonadjacent teeth, radiographic bone loss extending to the middle third of the root or beyond, loss of ≤4 teeth due to periodontitis, probing depths ≥6 mm, vertical bone loss ≥3 mm, and ≥20 remaining teeth. The percentage radiographic bone loss-to-age ratio will be 0.25-1.0; grade C classification will be based on smoking ≥10 cigarettes per day as a grade modifier.

Was misst die Studie?

Primäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Gingival tissue SAA1 concentration
Zeitfenster: Baseline

SAA1 concentration in gingival tissue homogenates will be measured by ELISA (FineTest) according to the manufacturer's instructions and reported in ng/mL.

Baseline
Gingival tissue SAA2 concentration
Zeitfenster: Baseline

SAA2 concentration in gingival tissue homogenates will be measured by ELISA (FineTest) according to the manufacturer's instructions and reported in ng/mL.

Baseline
Gingival tissue SAA3 concentration
Zeitfenster: Baseline

SAA3 concentration in gingival tissue homogenates will be measured by ELISA (FineTest) according to the manufacturer's instructions and reported in ng/mL.

Baseline
Gingival tissue SAA4 concentration
Zeitfenster: Baseline

SAA4 concentration in gingival tissue homogenates will be measured by ELISA (FineTest) according to the manufacturer's instructions and reported in ng/mL.

Baseline

Sekundäre Ergebnismessungen

Ergebnis Maßnahme
Maßnahmenbeschreibung
Zeitfenster
Correlation Between Gingival Tissue SAA Protein Levels and Probing Depth
Zeitfenster: Baseline

Correlation between gingival tissue serum amyloid A (SAA) family protein levels and probing depth, measured in millimeters (mm).

Baseline
Correlation Between Gingival Tissue SAA Protein Levels and Plaque Score
Zeitfenster: Baseline

Correlation between gingival tissue serum amyloid A (SAA) family protein levels and plaque score, expressed as the percentage, of examined sites with plaque.

Baseline
Correlation Between Gingival Tissue SAA Protein Levels and Bleeding on Probing
Zeitfenster: Baseline

Correlation between gingival tissue serum amyloid A (SAA) family protein levels and bleeding on probing, expressed as the percentage of examined sites exhibiting bleeding after probing.

Baseline
Correlation Between Gingival Tissue SAA Protein Levels and Clinical Attachment Level
Zeitfenster: Baseline

Correlation between gingival tissue serum amyloid A (SAA) family protein levels and clinical attachment level, measured in millimeters.

Baseline

Mitarbeiter und Ermittler

Hier finden Sie Personen und Organisationen, die an dieser Studie beteiligt sind.

Sponsor

Studienaufzeichnungsdaten

Diese Daten verfolgen den Fortschritt der Übermittlung von Studienaufzeichnungen und zusammenfassenden Ergebnissen an ClinicalTrials.gov. Studienaufzeichnungen und gemeldete Ergebnisse werden von der National Library of Medicine (NLM) überprüft, um sicherzustellen, dass sie bestimmten Qualitätskontrollstandards entsprechen, bevor sie auf der öffentlichen Website veröffentlicht werden.

Haupttermine studieren

Studienbeginn (Geschätzt)

4. Dezember 2026

Primärer Abschluss (Geschätzt)

4. Februar 2027

Studienabschluss (Geschätzt)

4. März 2027

Studienanmeldedaten

Zuerst eingereicht

4. November 2026

Zuerst eingereicht, das die QC-Kriterien erfüllt hat

10. November 2026

Zuerst gepostet (Tatsächlich)

13. November 2026

Studienaufzeichnungsaktualisierungen

Letztes Update gepostet (Tatsächlich)

13. November 2026

Letztes eingereichtes Update, das die QC-Kriterien erfüllt

10. November 2026

Zuletzt verifiziert

1. November 2026

Mehr Informationen

Begriffe im Zusammenhang mit dieser Studie

Andere Studien-ID-Nummern

  • SAA-GT-2026-11

Plan für individuelle Teilnehmerdaten (IPD)

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UNENTSCHIEDEN

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Nein

Studiert ein von der US-amerikanischen FDA reguliertes Geräteprodukt

Nein

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