EFFECT OF LOW LEVEL LASER OF 650NM ON VIALBILITY OF PREVOTELLA INTERMEDIAWITH AND WITHOUT PHOTOSENSITISERS: AN IN VITRO STUDY

Background: Prevotella intermedia is commonly associated with various forms of periodontal disease. Conventional treatment involves a combination of mechanical therapy and systemic antibiotics administration, which comes with its own set of challenges and disadvantages. An alternative treatment modality is low-level laser therapy with and without photosensitizers. Purpose: This study aimed to evaluate the effectiveness of low-level laser therapy with and without the use of photosensitizers, specifically Methylene blue and Toluidine blue, on the viability of Prevotella intermedia. Methods: The study utilized in vitro experiments to assess the impact of low-level laser therapy alone and in combination with photosensitizers on the viability of Prevotella intermedia. Results: The findings indicate that Methylene blue, when combined with low-level laser therapy, exhibits bactericidal effects similar to or greater than low-level laser therapy alone on Prevotella intermedia. Additionally, the use of Toluidine blue as a photosensitizer in combination with low-level laser therapy also led to a reduction in the viability of Prevotella intermedia, although it was not as effective as Methylene blue. Conclusion: Low-level laser therapy, particularly when combined with Methylene blue as a photosensitizer, shows promise as a potential treatment modality for controlling Prevotella intermedia in periodontal diseases.