Diode Laser and Green Indocyanine in the Non-surgical Treatment of Periodontitis

Study Overview
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Brief Summary
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This is a parallel-group, randomized controlled clinical trial aimed to evaluate the clinical and microbiological effects of the adjunctive topical use of diode laser and green indocyanine in the full-mouth ultrasonic debridement of patients affected by periodontitis.

Detailed Description
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Periodontitis is a chronic inflammatory disease affecting the supporting tissues of the teeth and is primarily caused by the subgingival inflammation induced by the bacterial oral biofilm. Several risk factors may condition its development and progression and, if untreated, periodontitis may lead to tooth loss and severe functional and aesthetic impairments. A central role in the non-surgical treatment of periodontitis is played by the manual and ultrasonic debridement of supra and subgingival bacterial deposits. The benefit of a fully ultrasonic approach lies in the knowledge that removing radicular structure is not a prerequisite for periodontal healing. However, non-surgical therapy has limitations due to limited access to some sites (furcation areas, concavities, grooves, distal sites of molars, and deep pockets), which may impair periodontal healing due to the persistence of pathogens and subsequent recolonization. In this context, the use of diode laser in combination with photoactivated solutions has been proposed as an adjunct treatment to conventional periodontal therapy to enhance the antibacterial effect and improve clinical effects, especially in areas of difficult access. In view of theme relevance and the existence of conflicting results in the literature, the aim of the present parallel-group, randomized controlled clinical trial is to evaluate the clinical and microbiological effects of the adjunctive topical use of diode laser and indocyanine green (DLIG) in the full-mouth ultrasonic debridement (FMUD) of patients affected by periodontitis. 24 patients will be treated by FMUD and, after 7 days, randomly allocated half to the test and a half to the control group. In the test group, patients will receive an adjunctive treatment in periodontal sites with an initial pocket depth > 4mm consisting of the use of a diode laser device (Fox ARC, Sweden & Martina, Due Carrare, Italy) after pocket irrigation by a solution of indocyanine green (Emundo®, Sweden&Martina, Due Carrare, Padova, Italy), whereas the patients in the control group will receive sham treatment (ST). The same treatment will be repeated three weeks after in both the test and control groups. Clinical assessment and microbiological analysis of subgingival plaque will be performed at baseline and after 3 and 6 months.

Official Title
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The Use of Diode Laser and Green Indocyanine Solution in Adjunct to Full-mouth Ultrasonic Debridement in the Treatment of Periodontitis: a Randomized Controlled Trial

Conditions
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Periodontitis

Intervention / Treatment
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* Procedure: FMUD + DLIG
* Procedure: FMUD + ST


Participation Criteria
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Eligibility Criteria
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Inclusion criteria: Diagnosis of moderate to severe periodontitis Systemic health Exclusion criteria: Systemic diseases requiring antibiotic prophylaxis or other systemic medication that could affect the patient's clinical response Periodontal treatment within the last 12 months or systemic antibiotic intake in the last 3 months Pregnancy

Ages Eligible for Study
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Minimum Age: 18 Years
Maximum Age: 80 Years

Sexes Eligible for Study
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All

Accepts Healthy Volunteers
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No

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: Test (FMUD + DLIG)<br>Periodontal pockets are treated by ultrasonic debridement and, after 7 and 28 days, by irrigation with indocyanine green solution and diode laser irradiation. | Procedure: FMUD + DLIG<br>* Full-Mouth Ultrasonic Debridement + Diode Laser and Indocyanine Green solution<br>* Other names: indocyanine green photosensitizer solution: Emundo®, Sweden&Martina, Due Carrare, Padova, Italy;|
| Sham Comparator: Control (FMUD + ST)<br>Periodontal pockets are treated by ultrasonic debridement and, after 7 and 28 days, by sham therapy. | Procedure: FMUD + ST<br>* Full-Mouth Ultrasonic Debridement + Sham Treatment<br>|

What is the study measuring?
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Primary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Probing depth (PD) reduction | The distance between the bottom of the pocket and the gingival margin recorded with a manual probe using a light force and measured to the closest millimeter | 6 months | 

Secondary Outcome Measures

| Outcome Measure | Measure Description | Time Frame |
| --- | --- | --- |
| Recession (REC) increase | The distance between the gingival margin and the cemento-enamel junction or the margin of the restoration. | 6 months | 
| Clinical Attachment Level (CAL) gain | Calculated as PD plus REC. | Baseline, 3 and 6 months | 
| Microbiological analysis | Semi-quantitative analysis by PCR | 6 months |