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

Study Overview
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Brief Summary
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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.

Detailed Description
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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.

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

Conditions
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Periodontal Disease

Intervention / Treatment
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* Procedure: Residual pockets will be treated by laser + photosensitizer
* Procedure: Residual pockets will be treated only photosensitizer
* Procedure: Residual pockets will be treated scaling and root planing
* Procedure: laser + photosensitizer associated with scaling and root planing
* Procedure: furcation defects will be treated by scaling and root planing


Participation Criteria
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Eligibility Criteria
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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

Ages Eligible for Study
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Minimum Age: 30 Years
Maximum Age: 80 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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Accepts Healthy Volunteers

Study Plan
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How is the study designed?
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Design Details

Primary Purpose: Treatment
Allocation: Randomized
Intervention Model: Parallel Assignment
Masking: Double


Arms and Interventions

| Participant Group/Arm | Intervention/Treatment |
| --- | --- |
| Experimental: Residual pocket - PDT<br>Photosensitizer plus diiodo laser | Procedure: Residual pockets will be treated by laser + photosensitizer<br>* Experimental group: Residual pockets will be treated by laser + photosensitizer<br>|
| Placebo Comparator: Residual pocket - Photosensitizer<br>Photosensitizer alone | Procedure: Residual pockets will be treated only photosensitizer<br>* Placebo Comparator: Residual pockets will be treated only photosensitizer<br>|
| Active Comparator: Residual pocket - SRP<br>scaling and root planing alone | Procedure: Residual pockets will be treated scaling and root planing<br>* Active Comparator: Residual pockets will be treated scaling and root planing<br>|
| Experimental: Furcation - PDT+SRP<br>Photosensitizer plus diiodo laser associated with scaling and root planing | Procedure: laser + photosensitizer associated with scaling and root planing<br>* Experimental group: furcation defects will be treated by laser + photosensitizer associated with scaling and root planing<br>|
| Active Comparator: Furcation - SRP<br>Photosensitizer associated with scaling and root planing | Procedure: furcation defects will be treated by scaling and root planing<br>* Active Comparator: furcation defects will be treated by scaling and root planing<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Change from baseline in Clinical attachment level at 3 and 6 months. |  | baseline, 3 and 6 months post-therapies | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Probing Pocket depth |  | baseline, 3 and 6 months post-therapies. |