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.
Descripción general del estudio
Estado
Estado
Condiciones
Condiciones
Intervención / Tratamiento
Intervención / Tratamiento
Descripción detallada
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 de estudio
Tipo de estudio
Inscripción (Estimado)
Inscripción
Fase
Fase
- No aplica
Contactos y Ubicaciones
Estudio Contacto
Estudio Contacto
- Nombre: Haoran Feng, BS
- Número de teléfono: +86 13815309288
- Correo electrónico: fenghaoran0611@gmail.com
Copia de seguridad de contactos de estudio
- Nombre: Lei Wang, BS
- Número de teléfono: +86 19961910284
- Correo electrónico: 657952067@qq.com
Ubicaciones de estudio
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Jiangsu
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Xuzhou, Jiangsu, Porcelana, 221000
- Affiliated Stomatological Hospital of Xuzhou Medical University
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Contacto:
- Haoran Feng, BS
- Número de teléfono: +86 13815309288
- Correo electrónico: fenghaoran0611@gmail.com
-
Contacto:
- Lei Wang, BS
- Número de teléfono: +86 19961910284
- Correo electrónico: 657952067@qq.com
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Investigador principal:
- Haoran Feng, BS
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Criterios de participación
Criterio de elegibilidad
Criterio de elegibilidad
Edades elegibles para estudiar
- Adulto
Acepta Voluntarios Saludables
Descripción
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.
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Tratamiento
- Asignación: Aleatorizado
- Modelo Intervencionista: Asignación paralela
- Enmascaramiento: Ninguno (etiqueta abierta)
Número de brazos
Armas e Intervenciones
Grupo de participantes/brazoGrupo de participantes/brazo |
Intervención / TratamientoIntervención / Tratamiento |
|---|---|
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Experimental: 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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Experimental: 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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Experimental: 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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¿Qué mide el estudio?
Medidas de resultado primarias
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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Mean Change From Baseline in Salivary Matrix Metalloproteinase-8 Concentration at 2 Weeks, 1 Month, 3 Months, and 6 Months
Periodo de tiempo: Baseline, 2 weeks, 1 month, 3 months, and 6 months after initiation of the intervention
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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.
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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 Salivary Interleukin-1 Beta Concentration at 2 Weeks, 1 Month, 3 Months, and 6 Months
Periodo de tiempo: Baseline, 2 weeks, 1 month, 3 months, and 6 months after initiation of the intervention
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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.
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Baseline, 2 weeks, 1 month, 3 months, and 6 months after initiation of the intervention
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Medidas de resultado secundarias
Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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Mean Change From Baseline in Salivary Interleukin-6 Concentration at 2 Weeks, 1 Month, 3 Months, and 6 Months
Periodo de tiempo: 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
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Mean Change From Baseline in the Shannon Diversity Index of the Salivary Microbiome at 2 Weeks, 1 Month, 3 Months, and 6 Months
Periodo de tiempo: 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.
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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 the Relative Abundance of Porphyromonas gingivalis in Saliva at 2 Weeks, 1 Month, 3 Months, and 6 Months.
Periodo de tiempo: Baseline, 2 weeks, 1 month, 3 months, and 6 months after initiation of the intervention.
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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
Periodo de tiempo: 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
Periodo de tiempo: Baseline, 2 weeks, 1 month, 3 months, and 6 months after initiation of the intervention
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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.
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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 the Percentage of Periodontal Sites With Bleeding on Probing at 2 Weeks, 1 Month, 3 Months, and 6 Months
Periodo de tiempo: Baseline, 2 weeks, 1 month, 3 months, and 6 months after initiation of the intervention
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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.
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Baseline, 2 weeks, 1 month, 3 months, and 6 months after initiation of the intervention
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Colaboradores e Investigadores
Patrocinador
Patrocinador
Colaboradores
Colaboradores
Investigadores
Investigadores
- Investigador principal: Haoran Feng, Affiliated Stomatological Hospital of Xuzhou Medical University
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio (Estimado)
Inicio del estudio
Finalización primaria (Estimado)
Finalización primaria
Finalización del estudio (Estimado)
Finalización del estudio
Fechas de registro del estudio
Enviado por primera vez
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Actual)
Publicado por primera vez
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
Última actualización publicada
Última actualización enviada que cumplió con los criterios de control de calidad
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Última verificación
Más información
Términos relacionados con este estudio
Palabras clave
Términos MeSH relevantes adicionales
Otros números de identificación del estudio
Otros números de identificación del estudio
- 2026-KY-008-02
Plan de datos de participantes individuales (IPD)
¿Planea compartir datos de participantes individuales (IPD)?
Descripción del plan IPD
Marco de tiempo para compartir IPD
Criterios de acceso compartido de IPD
Tipo de información de apoyo para compartir IPD
- PROTOCOLO DE ESTUDIO
- SAVIA
- CIF
Información sobre medicamentos y dispositivos, documentos del estudio
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