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- Ensayo clínico NCT07633405
Photodynamic Therapy as an Adjunct in Periodontal Treatment (PDT-PERIO)
Clinical Evaluation of Photodynamic Therapy as an Adjunct to Scaling and Root Planing in the Treatment of Periodontal Disease: A Split-Mouth Randomized Controlled Clinical Trial
Descripción general del estudio
Estado
Condiciones
Intervención / Tratamiento
Descripción detallada
Periodontitis is a chronic inflammatory disease characterized by the destruction of the supporting tissues of the teeth and is one of the leading causes of tooth loss worldwide. Scaling and root planing (SRP) is considered the gold standard non-surgical treatment; however, complete elimination of periodontal pathogens may be difficult in deep periodontal pockets and anatomically complex sites.
Antimicrobial photodynamic therapy (aPDT) has emerged as a minimally invasive adjunctive treatment. This technique combines a photosensitizing agent, toluidine blue O, with low-level laser irradiation to produce reactive oxygen species capable of destroying periodontal pathogens while minimizing damage to host tissues.
This study will be conducted at the Dental Clinic of the Universidad Católica de Santiago de Guayaquil, Ecuador. Thirty adult patients diagnosed with periodontitis will be enrolled. A split-mouth randomized design will be used, with one hemiarch receiving SRP alone (control) and the contralateral hemiarch receiving SRP plus aPDT (test group).
Clinical parameters including probing pocket depth (PPD), clinical attachment level (CAL), bleeding on probing (BOP), plaque index (PI), and gingival index (GI) will be recorded at baseline and at 30-day follow-up. The primary objective is to compare the clinical effectiveness of adjunctive aPDT versus conventional SRP alone in improving periodontal health outcomes.
The study has been approved by the Ethics Committee for Research in Human Subjects of the Universidad Católica de Santiago de Guayaquil (CEISH-UCSG) and will be conducted in accordance with ethical principles for human research.
Tipo de estudio
Inscripción (Estimado)
Fase
- No aplica
Contactos y Ubicaciones
Estudio Contacto
- Nombre: GABRIELA G ZAMBRANO MANZABA, DDS
- Número de teléfono: +19546298543
- Correo electrónico: gabriela.zambrano06@cu.ucsg.edu.ec
Ubicaciones de estudio
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Guayas
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Guayaquil, Guayas, Ecuador, 090101
- Dental School, Catholic University of Santiago de Guayaquil (UCSG)
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Sub-Investigador:
- HECTOR A LEMA GUTIERREZ, DDS
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Contacto:
- GABRIELA G ZAMBRANO MANZABA, DDS
- Número de teléfono: 9546298543
- Correo electrónico: gabriela.manzaba30@gmail.com
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Contacto:
- GABRIELA ZAMBRANO MANZABA, DDS
- Número de teléfono: 9546298543
- Correo electrónico: gabriela.zambrano06@cu.ucsg.edu.ec
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Sub-Investigador:
- PABLO M REYES CUENCA, DDS
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Investigador principal:
- GABRIELA GUADALUPE ZAMBRANO MANZABA, DDS
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Criterios de participación
Criterio de elegibilidad
Edades elegibles para estudiar
- Adulto
- Adulto Mayor
Acepta Voluntarios Saludables
Descripción
Inclusion Criteria:
- Adults aged 18 to 65 years.
- Diagnosis of Stage I, II, III, or IV periodontitis according to the 2018 World Workshop Classification.
- Presence of at least two hemiarches with periodontal pockets ≥5 mm suitable for a split-mouth design.
- Systemically healthy individuals.
- No periodontal treatment received within the previous 6 months.
- No use of antibiotics, anti-inflammatory drugs, or antiseptic mouth rinses within the previous 3 months.
- Ability and willingness to provide written informed consent and attend follow-up visits.
Exclusion Criteria:
- Uncontrolled systemic diseases that may affect healing or immune response.
- Use of antibiotics, corticosteroids, or immunosuppressive medications within the previous 3 months.
- Active smokers consuming more than 10 cigarettes per day.
- Pregnant or breastfeeding women.
- Presence of dental implants, defective restorations, or teeth with Grade III mobility in the selected study sites.
- Known allergy to toluidine blue O or any component of the photosensitizer.
- Individuals unable or unwilling to attend the 30-day follow-up visit.
Plan de estudios
¿Cómo está diseñado el estudio?
Detalles de diseño
- Propósito principal: Tratamiento
- Asignación: Aleatorizado
- Modelo Intervencionista: Asignación paralela
- Enmascaramiento: Doble
Armas e Intervenciones
Grupo de participantes/brazo |
Intervención / Tratamiento |
|---|---|
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Comparador activo: Scaling and Root Planing (SRP)
Hemiarch treated with conventional non-surgical periodontal therapy consisting of scaling and root planing alone.
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Conventional non-surgical periodontal therapy performed using ultrasonic and manual instrumentation to remove subgingival biofilm and calculus.
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Experimental: Scaling and Root Planing Plus Antimicrobial Photodynamic Therapy (SRP + aPDT)
Hemiarch treated with conventional scaling and root planing combined with adjunctive antimicrobial photodynamic therapy using toluidine blue O and low-level laser irradiation.
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Conventional non-surgical periodontal therapy performed using ultrasonic and manual instrumentation to remove subgingival biofilm and calculus.
Adjunctive antimicrobial photodynamic therapy using toluidine blue O as photosensitizer activated with a 650 nm low-level laser following scaling and root planing.
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¿Qué mide el estudio?
Medidas de resultado primarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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Change in Probing Pocket Depth (PPD)
Periodo de tiempo: Baseline and 30 Days
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Mean change in probing pocket depth (PPD), measured in millimeters using a UNC-15 periodontal probe, comparing baseline and 30-day follow-up between treatment groups.
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Baseline and 30 Days
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Medidas de resultado secundarias
Medida de resultado |
Medida Descripción |
Periodo de tiempo |
|---|---|---|
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Change in Clinical Attachment Level (CAL)
Periodo de tiempo: Baseline and 30 Days
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Mean change in clinical attachment level (CAL), measured in millimeters from the cemento-enamel junction to the bottom of the periodontal pocket.
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Baseline and 30 Days
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Change in Bleeding on Probing (BOP)
Periodo de tiempo: Baseline and 30 Days
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Percentage of sites presenting bleeding on probing after periodontal examination.
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Baseline and 30 Days
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Change in Plaque Index (PI)
Periodo de tiempo: Baseline and 30 Days
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Percentage of dental surfaces with visible plaque assessed using the O'Leary plaque index.
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Baseline and 30 Days
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Change in Gingival Index (GI)
Periodo de tiempo: Baseline and 30 Days
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Mean gingival index score assessed according to the Löe and Silness criteria.
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Baseline and 30 Days
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Colaboradores e Investigadores
Patrocinador
Publicaciones y enlaces útiles
Publicaciones Generales
- Wang P, Sun F, Ling X. Effectiveness of photodynamic therapy as an adjunctive treatment for periodontitis: A systematic review and meta-analysis. J Stomatol Oral Maxillofac Surg. 2025 Mar;126(2):102036. doi: 10.1016/j.jormas.2024.102036. Epub 2024 Sep 5.
- Nie M, Huang P, Peng P, Shen D, Zhao L, Jiang D, Shen Y, Wei L, Bible PW, Yang J, Wang J, Wu Y. Efficacy of photodynamic therapy as an adjunct to scaling and root planing on clinical parameters and microbial composition in subgingival plaque of periodontitis patients: A split-mouth randomized clinical trial. J Periodontol. 2024 Jun;95(6):535-549. doi: 10.1002/JPER.23-0195. Epub 2024 Mar 19.
Fechas de registro del estudio
Fechas importantes del estudio
Inicio del estudio (Estimado)
Finalización primaria (Estimado)
Finalización del estudio (Estimado)
Fechas de registro del estudio
Enviado por primera vez
Primero enviado que cumplió con los criterios de control de calidad
Publicado por primera vez (Actual)
Actualizaciones de registros de estudio
Última actualización publicada (Actual)
Última actualización enviada que cumplió con los criterios de control de calidad
Última verificación
Más información
Términos relacionados con este estudio
Palabras clave
Términos MeSH relevantes adicionales
- Enfermedades de la Boca
- Enfermedades Estomatognáticas
- Periodontitis
- Enfermedades periodontales
- Sistema digestivo y fenómenos fisiológicos orales
- Odontología
- Fenómenos fisiológicos dentales
- Escala dental
- Profilaxis dental
- Periodoncia
- Legrado subgingival
- Odontología preventiva
- Planificación de raíz
- Exfoliación Dental
Otros números de identificación del estudio
- CEISH-UCSG-045-2025. - CEISH-
Plan de datos de participantes individuales (IPD)
¿Planea compartir datos de participantes individuales (IPD)?
Descripción del plan IPD
Información sobre medicamentos y dispositivos, documentos del estudio
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