Photodynamic Therapy and Periodontal Therapy. A Clinical, Microbiological and Immunoenzymatic Analysis

September 10, 2013 updated by: Marcio Zaffalon Casati, Paulista University

Photodynamic Therapy and Periodontal Therapy. A Clinical, Microbiological and Immunoenzymatic Analysis.

Residual pockets and furcation defects are challenging sites that require additional periodontal therapy. The aim of this study is evaluate 1)the effect of a single photodynamic therapy (PDT) as monotherapy residual pockets in single rooted teeth and 2) the effect of PDT in association with scaling and root planing (SRP) in class II furcation lesions with probing pocket depth (PPD) >5mm and bleeding on probing (BoP). A blind randomized controlled clinical trial was conducted in subjects presenting at least three residual pockets in single root teeth and subjects with at least one molar presenting class II furcation defect. To evaluate the effect of a single PDT as monotherapy in residual pockets, the selected sites were assigned to receive: PDT alone, photosensitizer alone or SRP alone. To evaluate the effect of PDT in association with SRP in class II furcation lesions, the selected sites were assigned to PDT+SRP or SRP alone. Clinical, microbiological and immunoenzymatic analyses were assessed at baseline, 3 and 6 months post-therapies.

Study Overview

Status

Status

Indicates the current recruitment status or the expanded access status.
Completed

Conditions

Conditions

The disease, disorder, syndrome, illness, or injury that is being studied. On ClinicalTrials.gov, conditions may also include other health-related issues, such as lifespan, quality of life, and health risks.

Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.

Detailed Description

Residual pockets and class II furcation lesions are challenging sites that require additional periodontal therapy. The aims of this study were to evaluate:

1) the effect of a single PDT as monotherapy residual pockets in single rooted teeth and 2) the effect of PDT in association with SRP in class II furcation lesions.

A blind randomized controlled clinical trial was conducted in subjects presenting at least three residual pockets in single root teeth and subjects with at least one molar presenting class II furcation involvement.

To evaluate the effect of a single PDT as monotherapy in residual pockets, the selected sites were assigned to receive one of following therapies: PDT alone, photosensitizer alone or SRP alone.

To evaluate the effect of PDT in association with SRP in class II furcation lesions, the selected sites were assigned to receive PDT+SRP or SRP alone. Microbiological, immunoenzymatic analyses and clinical parameters: probing pocket depth (PPD), position of the gingival margin (PGM), relative clinical attachment level (RCAL), full mouth plaque (FMPS) and bleeding score (FMBS), will be assessed at baseline,3 and 6 months post-therapies.

Study Type

Study Type

Describes the nature of a clinical study. Study types include interventional studies (also called clinical trials), observational studies (including patient registries), and expanded access.
Interventional

Enrollment (Actual)

Enrollment

The number of participants in a clinical study. The "anticipated" enrollment is the target number of participants that the researchers need for the study.
75

Phase

Phase

The stage of a clinical trial studying a drug or biological product, based on definitions developed by the U.S. Food and Drug Administration (FDA). The phase is based on the study's objective, the number of participants, and other characteristics. There are five phases: Early Phase 1 (formerly listed as Phase 0), Phase 1, Phase 2, Phase 3, and Phase 4. Not Applicable is used to describe trials without FDA-defined phases, including trials of devices or behavioral interventions.
  • Not Applicable

Contacts and Locations

This section provides the contact details for those conducting the study, and information on where this study is being conducted.

Study Locations

  • Brazil
    • SP
      • São Paulo, SP, Brazil
        • School of dentistry - Paulista University UNIP

Participation Criteria

Researchers look for people who fit a certain description, called eligibility criteria. Some examples of these criteria are a person's general health condition or prior treatments.

Eligibility Criteria

Eligibility Criteria

The key requirements that people who want to participate in a clinical study must meet or the characteristics they must have. Eligibility criteria consist of both inclusion criteria (which are required for a person to participate in the study) and exclusion criteria (which prevent a person from participating). Types of eligibility criteria include whether a study accepts healthy volunteers, has age or age group requirements, or is limited by sex.

Ages Eligible for Study

30 years to 80 years (Adult, Older Adult)

Accepts Healthy Volunteers

No

Genders Eligible for Study

All

Description

Inclusion Criteria:

  • diagnosis of chronic periodontitis (according to the criteria of the 1999 international classification)
  • at least three contralateral single rooted teeth with residual PPD > 5mm with bleeding on probing (BoP) in supportive periodontal therapy or with at least one molar presenting class II furcation defect.

Exclusion Criteria:

  • pregnancy
  • lactation
  • current smoking and smoking within the past 10 years
  • antibiotic therapies in the previous 6 months
  • use of mouth rinses containing antimicrobials in the preceding 2 months
  • systemic conditions that could affect the progression of periodontitis
  • orthodontic appliances
  • use of long-term administration of anti-inflammatory and immunosuppressive medications

Study Plan

This section provides details of the study plan, including how the study is designed and what the study is measuring.

How is the study designed?

Design Details

  • Primary Purpose: Treatment
  • Allocation: Randomized
  • Interventional Model: Parallel Assignment
  • Masking: Double

Arms and Interventions

Participant Group / Arm

Participant Group / Arm

A group or subgroup of participants in a clinical trial that receives a specific intervention/treatment, or no intervention, according to the trial's protocol.
Intervention / Treatment

Intervention / Treatment

A process or action that is the focus of a clinical study. Interventions include drugs, medical devices, procedures, vaccines, and other products that are either investigational or already available. Interventions can also include noninvasive approaches, such as education or modifying diet and exercise.
Experimental: Residual pocket - PDT
Photosensitizer plus diiodo laser
Procedure: Residual pockets will be treated by laser + photosensitizer
Experimental group: Residual pockets will be treated by laser + photosensitizer
Placebo Comparator: Residual pocket - Photosensitizer
Photosensitizer alone
Procedure: Residual pockets will be treated only photosensitizer
Placebo Comparator: Residual pockets will be treated only photosensitizer
Active Comparator: Residual pocket - SRP
scaling and root planing alone
Procedure: Residual pockets will be treated scaling and root planing
Active Comparator: Residual pockets will be treated scaling and root planing
Experimental: Furcation - PDT+SRP
Photosensitizer plus diiodo laser associated with scaling and root planing
Procedure: laser + photosensitizer associated with scaling and root planing
Experimental group: furcation defects will be treated by laser + photosensitizer associated with scaling and root planing
Active Comparator: Furcation - SRP
Photosensitizer associated with scaling and root planing
Procedure: furcation defects will be treated by scaling and root planing
Active Comparator: furcation defects will be treated by scaling and root planing

What is the study measuring?

Primary Outcome Measures

Primary Outcome Measures

In a clinical study's protocol, the planned outcome measure that is the most important for evaluating the effect of an intervention/treatment. Most clinical studies have one primary outcome measure, but some have more than one.
Outcome Measure
Time Frame
Change from baseline in Clinical attachment level at 3 and 6 months.
Time Frame: baseline, 3 and 6 months post-therapies
baseline, 3 and 6 months post-therapies

Secondary Outcome Measures

Secondary Outcome Measures

In a clinical study's protocol, a planned outcome measure that is not as important as the primary outcome measure for evaluating the effect of an intervention but is still of interest. Most clinical studies have more than one secondary outcome measure.
Outcome Measure
Time Frame
Probing Pocket depth
Time Frame: baseline, 3 and 6 months post-therapies.
baseline, 3 and 6 months post-therapies.

Collaborators and Investigators

This is where you will find people and organizations involved with this study.

Sponsor

Sponsor

The organization or person who initiates the study and who has authority and control over the study.
Paulista University

Study record dates

These dates track the progress of study record and summary results submissions to ClinicalTrials.gov. Study records and reported results are reviewed by the National Library of Medicine (NLM) to make sure they meet specific quality control standards before being posted on the public website.

Study Major Dates

Study Start

Study Start

The actual date on which the first participant was enrolled in a clinical study. The "anticipated" study start date is the date that the researchers think will be the study start date.
February 1, 2011

Primary Completion (Actual)

Primary Completion

The date on which the last participant in a clinical study was examined or received an intervention to collect final data for the primary outcome measure. Whether the clinical study ended according to the protocol or was terminated does not affect this date. For clinical studies with more than one primary outcome measure with different completion dates, this term refers to the date on which data collection is completed for all the primary outcome measures. The "anticipated" primary completion date is the date that the researchers think will be the primary completion date for the study.
May 1, 2011

Study Completion (Actual)

Study Completion

The date on which the last participant in a clinical study was examined or received an intervention/treatment to collect final data for the primary outcome measures, secondary outcome measures, and adverse events (that is, the last participant's last visit). The "anticipated" study completion date is the date that the researchers think will be the study completion date.
March 1, 2013

Study Registration Dates

First Submitted

First Submitted

The date on which the study sponsor or investigator first submitted a study record to ClinicalTrials.gov. There is typically a delay of a few days between the first submitted date and the record's availability on ClinicalTrials.gov (the first posted date).
June 13, 2012

First Submitted That Met QC Criteria

First Submitted That Met QC Criteria

The date on which the study sponsor or investigator first submits a study record that is consistent with National Library of Medicine (NLM) quality control (QC) review criteria. The sponsor or investigator may need to revise and submit a study record one or more times before NLM's QC review criteria are met. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
August 17, 2012

First Posted (Estimate)

First Posted

The date on which the study record was first available on ClinicalTrials.gov after National Library of Medicine (NLM) quality control (QC) review has concluded. There is typically a delay of a few days between the date the study sponsor or investigator submitted the study record and the first posted date.
August 22, 2012

Study Record Updates

Last Update Posted (Estimate)

Last Update Posted

The most recent date on which changes to a study record were made available on ClinicalTrials.gov. There may be a delay between when the changes were submitted to ClinicalTrials.gov by the study's sponsor or investigator (the last update submitted date) and the last update posted date.
September 12, 2013

Last Update Submitted That Met QC Criteria

Last Update Submitted That Met QC Criteria

The most recent date on which the study sponsor or investigator submitted changes to a study record that are consistent with National Library of Medicine (NLM) quality control (QC) review criteria. It is the responsibility of the sponsor or investigator to ensure that the study record is consistent with the NLM QC review criteria.
September 10, 2013

Last Verified

Last Verified

The most recent date on which the study sponsor or investigator confirmed the information about a clinical study on ClinicalTrials.gov as accurate and current. If a study with a recruitment status of recruiting; not yet recruiting; or active, not recruiting has not been confirmed within the past 2 years, the study's recruitment status is shown as unknown.
September 1, 2013

More Information

Terms related to this study

Additional Relevant MeSH Terms

Other Study ID Numbers

Other Study ID Numbers

Identifiers or ID numbers other than the NCT number that are assigned to a clinical study by the study's sponsor, funders, or others. These numbers may include unique identifiers from other trial registries and National Institutes of Health grant numbers.
  • 0272.0.251.000-10

This information was retrieved directly from the website clinicaltrials.gov without any changes. If you have any requests to change, remove or update your study details, please contact register@clinicaltrials.gov. As soon as a change is implemented on clinicaltrials.gov, this will be updated automatically on our website as well.

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