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

10 de novembro de 2026 atualizado por: 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.

Visão geral do estudo

Status

Ainda não está recrutando

Condições

Tipo de estudo

Observacional

Inscrição (Estimado)

108

Contactos e Locais

Esta seção fornece os detalhes de contato para aqueles que conduzem o estudo e informações sobre onde este estudo está sendo realizado.

Contato de estudo

Estude backup de contato

Critérios de participação

Os pesquisadores procuram pessoas que se encaixem em uma determinada descrição, chamada de critérios de elegibilidade. Alguns exemplos desses critérios são a condição geral de saúde de uma pessoa ou tratamentos anteriores.

Critérios de elegibilidade

Idades elegíveis para estudo

18 anos a 65 anos (Adulto, Adulto mais velho)

Aceita Voluntários Saudáveis

Sim

Gêneros Elegíveis para o Estudo

Tudo

Método de amostragem

Amostra Não Probabilística

População do estudo

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.

Descrição

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.

Plano de estudo

Esta seção fornece detalhes do plano de estudo, incluindo como o estudo é projetado e o que o estudo está medindo.

Como o estudo é projetado?

Detalhes do projeto

  • Modelos de observação: CASE_CONTROL
  • Perspectivas de Tempo: CROSS_SECTIONAL

Coortes e Intervenções

Grupo / Coorte
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.

O que o estudo está medindo?

Medidas de resultados primários

Medida de resultado
Descrição da medida
Prazo
Gingival tissue SAA1 concentration
Prazo: 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
Prazo: 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
Prazo: 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
Prazo: 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

Medidas de resultados secundários

Medida de resultado
Descrição da medida
Prazo
Correlation Between Gingival Tissue SAA Protein Levels and Probing Depth
Prazo: 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
Prazo: 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
Prazo: 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
Prazo: Baseline

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

Baseline

Colaboradores e Investigadores

É aqui que você encontrará pessoas e organizações envolvidas com este estudo.

Patrocinador

Datas de registro do estudo

Essas datas acompanham o progresso do registro do estudo e os envios de resumo dos resultados para ClinicalTrials.gov. Os registros do estudo e os resultados relatados são revisados ​​pela National Library of Medicine (NLM) para garantir que atendam aos padrões específicos de controle de qualidade antes de serem publicados no site público.

Datas Principais do Estudo

Início do estudo (Estimado)

4 de dezembro de 2026

Conclusão Primária (Estimado)

4 de fevereiro de 2027

Conclusão do estudo (Estimado)

4 de março de 2027

Datas de inscrição no estudo

Enviado pela primeira vez

4 de novembro de 2026

Enviado pela primeira vez que atendeu aos critérios de CQ

10 de novembro de 2026

Primeira postagem (Real)

13 de novembro de 2026

Atualizações de registro de estudo

Última Atualização Postada (Real)

13 de novembro de 2026

Última atualização enviada que atendeu aos critérios de controle de qualidade

10 de novembro de 2026

Última verificação

1 de novembro de 2026

Mais Informações

Termos relacionados a este estudo

Outros números de identificação do estudo

  • SAA-GT-2026-11

Plano para dados de participantes individuais (IPD)

Planeja compartilhar dados de participantes individuais (IPD)?

INDECISO

Informações sobre medicamentos e dispositivos, documentos de estudo

Estuda um medicamento regulamentado pela FDA dos EUA

Não

Estuda um produto de dispositivo regulamentado pela FDA dos EUA

Não

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