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Treatment of Aggressive Periodontitis With Repeated Adjunctive Antimicrobial Photodynamic Therapy

NCT02049008 · Status: COMPLETED · Phase: PHASE4 · Type: INTERVENTIONAL · Enrollment: 20

Last updated 2014-04-03

No results posted yet for this study

Summary

The treatment of aggressive periodontitis (AgP) represents a challenge for clinicians, because there are no standardized protocols for efficient control of the disease. The aim of this study is to evaluate the effect of multiple applications of antimicrobial photodynamic therapy (aPDT) as an adjunct to non-surgical periodontal treatment (nsPT) in patients diagnosed with AgP. Twenty patients with a clinical diagnosis of AgP will be treated in a split-mouth design study to either aPDT associated with scaling and root planning (SRP) or SRP only. aPDT will be performed by using a laser light source with 690 nm wavelength associated with a phenothiazine photosensitizer. The applications will occur in four episodes (days 0, 2, 7 and 14). All patients will be monitored for 90 days. Clinical assessment of plaque index, probing depth, clinical attachment level and bleeding on probing will be performed at baseline (pre-intervention period) and 30 and 90 days after the nsPT. Subgingival plaque samples will be collected (at baseline and 30 and 90 days after the nsPT) and the counts of 40 subgingival species will be determined using DNA-DNA checkerboard hybridization. Gingival crevicular fluid samples will be collected (at baseline and 14, 30 and 90 after the nsTP) for evaluation the volume of fluid (Periotron) and the levels of Interleukin 1 beta, Interleukin 10 and Tumor Necrosis Factor alpha (Luminex). Data obtained will be statistically analyzed.

Conditions

  • Aggressive Periodontitis

Interventions

OTHER

Photodynamic Therapy

After a full-mouth scaling and root planning (SRP), the periodontal pockets of teeth selected to receive antimicrobial photodynamic therapy (aPDT) will be irrigated with distilled water. Shortly thereafter, the dye will be applied (phenothiazine hydrochloride- 10mg/mL) from the bottom of the pocket. After 1 minute, irrigation will be performed with distilled water to remove the excess of dye. The stained area will be irradiated with a diode laser (660 nm and a 60 mW/cm²). Six sites per tooth under treatment will be irradiated (10 seconds/ site). The applications of aPDT will be repeated in the same way until the second week (days: 2, 7,14). Before the application, the supragingival plaque will be removed.

OTHER

Sham Photodynamic Therapy

After a full-mouth scaling and root planning (SRP), the periodontal pockets of teeth selected will receive a simulation of antimicrobial photodynamic therapy (aPDT): irrigation with distilled water and simulated laser application. The simulations of aPDT will be repeated in the same way until the second week (days: 2, 7,14). Before the application, the supragingival plaque will be removed.

Sponsors & Collaborators

  • Fundação de Amparo à Pesquisa do Estado de São Paulo

    collaborator OTHER_GOV

  • University of Sao Paulo

    lead OTHER

Principal Investigators

  • Michel R Messora, Dr. · University of São Paulo - Ribeirão Preto

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
QUADRUPLE
Model
SINGLE_GROUP

Eligibility

Max Age
35 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2013-01-31
Primary Completion
2014-03-31
Completion
2014-03-31

Countries

  • Brazil

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT02049008 on ClinicalTrials.gov