Evaluating laser therapy for treating advanced periodontal disease

Clinical and Microbiological Evaluation of Laser Therapy in the Treatment of Periodontal Disease in Stages III and IV

Not applicable Interventional Universidade Federal Fluminense · NCT06426550

This study tests if adding laser therapy to regular treatment can help people with advanced gum disease feel better and improve their oral health.

Quick facts

PhaseNot applicable
Study typeInterventional
Enrollment20 (estimated)
Ages18 Years to 70 Years
SexAll
SponsorUniversidade Federal Fluminense Academic / other
Locations1 site (Nova Friburgo, Rio de Janeiro)
Trial IDNCT06426550 on ClinicalTrials.gov

What this trial studies

This clinical trial aims to assess the effectiveness of photodynamic therapy and photobiomodulation in treating periodontitis. Participants will receive conventional periodontal treatment combined with laser therapy and methylene blue to enhance clinical and microbiological outcomes. The study will involve twenty patients with advanced stages of periodontal disease, comparing results between those receiving the treatment and a placebo group. Clinical parameters such as plaque index, bleeding on probing, and probing depth will be measured at baseline and three months post-treatment.

Who should consider this trial

Good fit: Ideal candidates are adults with generalized periodontitis in stages III and IV, exhibiting severe periodontal issues.

Not a fit: Patients who have received periodontal treatment in the last six months or have systemic conditions that may interfere with the study will not benefit.

Why it matters

Potential benefit: If successful, this approach could significantly improve treatment outcomes for patients with advanced periodontal disease.

How similar studies have performed: Previous studies have shown promising results with laser therapy in periodontal treatment, indicating potential for success in this approach.

Eligibility criteria

Show full inclusion / exclusion criteria
Inclusion Criteria:

* Adult participants with periodontal disease;
* Four or more periodontal sites with PPD≥6 mm and CAL≥5 mm, non-adjacent;
* Generalized periodontitis, with more than 30% of the sites involved (Caton et al., 2018);
* Stages III and IV of periodontal disease (Caton et al., 2018);

Exclusion Criteria:

* Participants with hypersensitivity to the components of the 0.005% methylene blue gel;
* Received periodontal treatment in the last six months;
* Drugs (alcoholics, use of anti-inflammatories and antibiotics in the last 3 months);

Any evidence of systemic modifying factors which may directly interfere with the completion of the work (bias), such as:

* Pregnant and breastfeeding women;
* Hormone replacement therapy;
* Smoking;
* Hyperglycemia;
* Osteoporosis;
* Diagnosed with HIV+ or AIDS.

Where this trial is running

Nova Friburgo, Rio de Janeiro

Study contacts

How to participate

  1. Review the eligibility criteria above with your treating physician.
  2. Visit the official trial page on ClinicalTrials.gov for the most current contact information and recruitment status.
  3. Contact the listed study coordinator or principal investigator to request pre-screening. Pre-screening is free and never obligates you to enroll.
Conditions PeriodontitisPeriodontitis, AdultPeriodontal DiseasesPeriodontal PocketLaser TherapyMethylene Blue
Last reviewed 2026-06-15 by the Find a Trial editorial team. Information on this page is for educational purposes and is not medical advice. Always consult qualified healthcare professionals about clinical trial participation.