Caffeine Intake and Periodontal Treatment Outcomes
Effects of Dietary Caffeine Intake on Periodontal Treatment Outcomes: A Randomized Controlled Trial
This study will explore whether caffeine intake can affect recovery after periodontal (gum) treatment.
Periodontitis is a common gum disease caused by bacteria. Even after treatment, some people may still have ongoing inflammation or changes in oral bacteria. Researchers want to know if daily caffeine intake, such as from coffee, may help improve this condition.
In this study, about 90 adults with periodontitis will receive standard periodontal treatment. Participants will be randomly assigned to one of three groups: no caffeine intake, low caffeine intake, or moderate caffeine intake. They will follow these instructions for about 6 months.
Researchers will collect saliva samples and check gum health at several time points after treatment. Saliva will be used to measure inflammation markers and to study changes in oral bacteria. Researchers will also record clinical gum conditions, such as gum pocket depth and bleeding.
The goal of this study is to understand whether caffeine intake can help reduce inflammation, improve oral bacteria balance, and support recovery after periodontal treatment. The results may help provide simple dietary advice to improve long-term gum health.
Panoramica dello studio
Stato
Stato
Condizioni
Condizioni
Intervento / Trattamento
Intervento / Trattamento
Descrizione dettagliata
This study is a randomized controlled trial designed to evaluate the effects of dietary caffeine intake on periodontal treatment outcomes and potential biological mechanisms.
Periodontitis is a chronic inflammatory disease associated with microbial imbalance and increased inflammatory activity. Although standard periodontal treatment can control disease progression, some individuals may continue to experience persistent inflammation during the maintenance phase.
Approximately 90 adults with periodontitis will be recruited and will receive standard non-surgical periodontal treatment. Participants will be randomly assigned to one of three groups according to caffeine intake: no intake, low intake, and moderate intake.
Participants will be followed for 6 months. Saliva samples will be collected at baseline and multiple follow-up time points. These samples will be used to assess inflammatory biomarkers and oral microbiome characteristics. Clinical periodontal parameters will also be recorded during follow-up.
This study aims to evaluate whether dietary caffeine intake influences inflammatory responses, oral microbiome characteristics, and clinical periodontal outcomes after periodontal treatment. The findings may provide evidence for incorporating dietary factors into periodontal disease management.
Tipo di studio
Tipo di studio
Iscrizione (Stimato)
Iscrizione
Fase
Fase
- Non applicabile
Contatti e Sedi
Contatto studio
Contatto studio
- Nome: Haoran Feng, BS
- Numero di telefono: +86 13815309288
- Email: fenghaoran0611@gmail.com
Backup dei contatti dello studio
- Nome: Lei Wang, BS
- Numero di telefono: +86 19961910284
- Email: 657952067@qq.com
Luoghi di studio
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Jiangsu
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Xuzhou, Jiangsu, Cina, 221000
- Affiliated Stomatological Hospital of Xuzhou Medical University
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Contatto:
- Haoran Feng, BS
- Numero di telefono: +86 13815309288
- Email: fenghaoran0611@gmail.com
-
Contatto:
- Lei Wang, BS
- Numero di telefono: +86 19961910284
- Email: 657952067@qq.com
-
Investigatore principale:
- Haoran Feng, BS
-
-
Criteri di partecipazione
Criteri di ammissibilità
Criteri di ammissibilità
Età idonea allo studio
- Adulto
Accetta volontari sani
Descrizione
Inclusion Criteria:
- Adults aged 18 to 55 years.
- Diagnosed with periodontitis according to the 2018 Classification of Periodontal and Peri-Implant Diseases and Conditions.
- First visit for periodontal treatment and eligible for standard non-surgical periodontal therapy.
- Willing and able to comply with the dietary intervention and scheduled follow-up visits.
- Able to understand the study procedures and provide written informed consent.
- Able to communicate effectively and complete study questionnaires and follow-up assessments.
Exclusion Criteria:
- Pregnant or breastfeeding women, or women planning pregnancy during the study period.
- History of periodontal treatment within the previous 6 months.
- Current smokers or tobacco users.
- Use of antibiotics, anti-inflammatory drugs, immunosuppressive agents, or medications known to affect periodontal status within the previous 3 months.
- Presence of systemic diseases that may influence periodontal conditions, including diabetes mellitus, hypertension, or hyperlipidemia.
- Severe systemic diseases, psychiatric disorders, or other conditions that may interfere with study participation or protocol compliance.
- Allergy or intolerance to caffeine or inability to comply with the dietary caffeine intervention.
- Individuals with limited hand function or other conditions preventing adequate oral hygiene practices.
Piano di studio
Come è strutturato lo studio?
Dettagli di progettazione
- Scopo principale: Trattamento
- Assegnazione: Randomizzato
- Modello interventistico: Assegnazione parallela
- Mascheramento: Nessuno (etichetta aperta)
Numero di armi
Armi e interventi
Gruppo di partecipanti / ArmGruppo di partecipanti / Arm |
Intervento / TrattamentoIntervento / Trattamento |
|---|---|
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Sperimentale: No Caffeine Intake Group
Participants will receive standard non-surgical periodontal treatment and will be instructed to avoid dietary caffeine intake throughout the 6-month study period.
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Participants will receive standard non-surgical periodontal treatment and will be instructed to avoid all dietary sources of caffeine throughout the 6-month study period.
|
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Sperimentale: Low Caffeine Intake Group
Participants will receive standard non-surgical periodontal treatment and will consume approximately 50 mg of dietary caffeine per day throughout the 6-month study period.
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Participants will receive standard non-surgical periodontal treatment and will consume approximately 50 mg of dietary caffeine per day throughout the 6-month study period.
|
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Sperimentale: Moderate Caffeine Intake Group
Participants will receive standard non-surgical periodontal treatment and will consume approximately 100 mg of dietary caffeine per day throughout the 6-month study period.
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Participants will receive standard non-surgical periodontal treatment and will consume approximately 100 mg of dietary caffeine per day throughout the 6-month study period.
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Cosa sta misurando lo studio?
Misure di risultato primarie
Misure di risultato primarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
|
Mean Change From Baseline in Salivary Matrix Metalloproteinase-8 Concentration at 2 Weeks, 1 Month, 3 Months, and 6 Months
Lasso di tempo: Baseline, 2 weeks, 1 month, 3 months, and 6 months after initiation of the intervention
|
Unstimulated whole saliva will be collected at baseline and at 2 weeks, 1 month, 3 months, and 6 months after initiation of the intervention.
Salivary matrix metalloproteinase-8 concentration will be quantified using a commercial enzyme-linked immunosorbent assay kit.
For each participant, change from baseline will be calculated separately at each post-baseline time point.
The outcome will be summarized as the mean change from baseline for each intervention arm at each time point.
|
Baseline, 2 weeks, 1 month, 3 months, and 6 months after initiation of the intervention
|
|
Mean Change From Baseline in Salivary Interleukin-1 Beta Concentration at 2 Weeks, 1 Month, 3 Months, and 6 Months
Lasso di tempo: Baseline, 2 weeks, 1 month, 3 months, and 6 months after initiation of the intervention
|
Unstimulated whole saliva will be collected at baseline and at 2 weeks, 1 month, 3 months, and 6 months after initiation of the intervention.
Salivary interleukin-1 beta concentration will be quantified using a commercial enzyme-linked immunosorbent assay kit.
For each participant, change from baseline will be calculated separately at each post-baseline time point.
The outcome will be summarized as the mean change from baseline for each intervention arm at each time point.
|
Baseline, 2 weeks, 1 month, 3 months, and 6 months after initiation of the intervention
|
Misure di risultato secondarie
Misure di risultato secondarie
Misura del risultato |
Misura Descrizione |
Lasso di tempo |
|---|---|---|
|
Mean Change From Baseline in Salivary Interleukin-6 Concentration at 2 Weeks, 1 Month, 3 Months, and 6 Months
Lasso di tempo: Baseline, 2 weeks, 1 month, 3 months, and 6 months after initiation of the intervention
|
Unstimulated whole saliva will be collected at baseline and at 2 weeks, 1 month, 3 months, and 6 months after initiation of the intervention.
Salivary interleukin-6 concentration will be quantified using a commercial enzyme-linked immunosorbent assay kit.
For each participant, change from baseline will be calculated separately at each post-baseline time point.
The outcome will be summarized as the mean change from baseline for each intervention arm at each time point.
|
Baseline, 2 weeks, 1 month, 3 months, and 6 months after initiation of the intervention
|
|
Mean Change From Baseline in the Shannon Diversity Index of the Salivary Microbiome at 2 Weeks, 1 Month, 3 Months, and 6 Months
Lasso di tempo: Baseline, 2 weeks, 1 month, 3 months, and 6 months after initiation of the intervention.
|
Salivary microbiome composition will be assessed using 16S ribosomal RNA gene sequencing.
Alpha diversity will be quantified using the Shannon diversity index at baseline and at 2 weeks, 1 month, 3 months, and 6 months after initiation of the intervention.
For each participant, change from baseline will be calculated separately at each post-baseline time point.
The outcome will be summarized as the mean change from baseline for each intervention arm at each time point.
|
Baseline, 2 weeks, 1 month, 3 months, and 6 months after initiation of the intervention.
|
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Mean Change From Baseline in the Relative Abundance of Porphyromonas gingivalis in Saliva at 2 Weeks, 1 Month, 3 Months, and 6 Months.
Lasso di tempo: Baseline, 2 weeks, 1 month, 3 months, and 6 months after initiation of the intervention.
|
The relative abundance of Porphyromonas gingivalis in saliva will be estimated using 16S ribosomal RNA gene sequencing and reported as a percentage.
For each participant, change from baseline will be calculated separately at 2 weeks, 1 month, 3 months, and 6 months after initiation of the intervention.
The outcome will be summarized as the mean change in percentage points for each intervention arm at each time point.
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Baseline, 2 weeks, 1 month, 3 months, and 6 months after initiation of the intervention.
|
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Mean Change From Baseline in Full-Mouth Mean Probing Depth at 2 Weeks, 1 Month, 3 Months, and 6 Months
Lasso di tempo: Baseline, 2 weeks, 1 month, 3 months, and 6 months after initiation of the intervention.
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Probing depth will be measured in millimeters by one trained and calibrated periodontal examiner using a Florida electronic periodontal probe at six sites per tooth.
For each participant, full-mouth mean probing depth will be calculated across all examined periodontal sites at each assessment.
Change from baseline will be calculated separately at 2 weeks, 1 month, 3 months, and 6 months.
The outcome will be summarized as the mean change from baseline for each intervention arm at each time point.
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Baseline, 2 weeks, 1 month, 3 months, and 6 months after initiation of the intervention.
|
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Mean Change From Baseline in Full-Mouth Mean Clinical Attachment Level at 2 Weeks, 1 Month, 3 Months, and 6 Months
Lasso di tempo: Baseline, 2 weeks, 1 month, 3 months, and 6 months after initiation of the intervention
|
Clinical attachment level will be measured in millimeters by one trained and calibrated periodontal examiner using a Florida electronic periodontal probe at six sites per tooth.
For each participant, full-mouth mean clinical attachment level will be calculated across all examined periodontal sites at each assessment.
Change from baseline will be calculated separately at 2 weeks, 1 month, 3 months, and 6 months.
The outcome will be summarized as the mean change from baseline for each intervention arm at each time point.
|
Baseline, 2 weeks, 1 month, 3 months, and 6 months after initiation of the intervention
|
|
Mean Change From Baseline in the Percentage of Periodontal Sites With Bleeding on Probing at 2 Weeks, 1 Month, 3 Months, and 6 Months
Lasso di tempo: Baseline, 2 weeks, 1 month, 3 months, and 6 months after initiation of the intervention
|
Bleeding on probing will be assessed by one trained and calibrated periodontal examiner at six sites per tooth.
For each participant, the percentage of periodontal sites with bleeding on probing will be calculated as the number of sites showing bleeding divided by the total number of sites examined, multiplied by 100.
Change from baseline will be calculated separately at 2 weeks, 1 month, 3 months, and 6 months.
The outcome will be summarized as the mean change in percentage points for each intervention arm at each time point.
|
Baseline, 2 weeks, 1 month, 3 months, and 6 months after initiation of the intervention
|
Collaboratori e investigatori
Sponsor
Sponsor
Collaboratori
Collaboratori
Investigatori
Investigatori
- Investigatore principale: Haoran Feng, Affiliated Stomatological Hospital of Xuzhou Medical University
Studiare le date dei record
Studia le date principali
Inizio studio (Stimato)
Inizio studio
Completamento primario (Stimato)
Completamento primario
Completamento dello studio (Stimato)
Completamento dello studio
Date di iscrizione allo studio
Primo inviato
Primo inviato
Primo inviato che soddisfa i criteri di controllo qualità
Primo inviato che soddisfa i criteri di controllo qualità
Primo Inserito (Effettivo)
Primo Inserito
Aggiornamenti dei record di studio
Ultimo aggiornamento pubblicato (Effettivo)
Ultimo aggiornamento pubblicato
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo aggiornamento inviato che soddisfa i criteri QC
Ultimo verificato
Ultimo verificato
Maggiori informazioni
Termini relativi a questo studio
Parole chiave
Termini MeSH pertinenti aggiuntivi
Altri numeri di identificazione dello studio
Altri numeri di identificazione dello studio
- 2026-KY-008-02
Piano per i dati dei singoli partecipanti (IPD)
Hai intenzione di condividere i dati dei singoli partecipanti (IPD)?
Descrizione del piano IPD
Periodo di condivisione IPD
Criteri di accesso alla condivisione IPD
Tipo di informazioni di supporto alla condivisione IPD
- STUDIO_PROTOCOLLO
- LINFA
- ICF
Informazioni su farmaci e dispositivi, documenti di studio
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