The Efficacy of Diode Laser and Subgingival Air Polishing With Erythritol in Treatment of Periodontitis ( Clinical and Microbiological Study)

Periodontitis, a chronic condition, leads to inflammation of the periodontium, resulting in the degradation of the periodontal ligament and adjacent alveolar bone, potentially leading to tooth loss The oral cavity, hosting nearly 700 distinct bacteria, is the primary origin of periodontitis, where bacterial pathogens trigger an inflammatory response, causing connective tissue deterioration. Gram-negative bacteria, including Aggregatibacter actinomycetemcomitans, Porphyromonas gingivalis, Prevotella intermedia, and Tannerella forsythia, contribute to periodontitis.

Dental plaque illustrates bacterial growth in the form of a biofilm Porphyromonas gingivalis, a Gram-negative anaerobic bacterium, is found in 85.75% of subgingival plaques associated with chronic periodontitis. The presence of Aggregatibacter actinomycetemcomitans at the individual level is notably associated with disease risk due to its genetic variation and virulence factors.

Exclusive reliance on mechanical therapy (SRP) may fall short in eliminating pathogenic bacterial species due to their presence within periodontal tissues or in regions inaccessible by periodontal instruments during close debridement. These challenges pose constraints on the enduring stability of outcomes in nonsurgical techniques, forming the rationale for supplementary therapies involving antibiotics, antiseptics, nonchemical modalities, laser, and photodynamic therapy.

Laser therapy, particularly the diode laser at 940 nm, in conjunction with SRP, enhances and facilitates the healing process in treated sites. The diode laser, preferred for its cost-effectiveness, portability, and user-friendly nature, simultaneously addresses the removal of diseased soft tissues, targets microorganisms, and induces an antibacterial effect within periodontal pockets.

Its favorable tissue penetration capabilities and absorption in pigmented tissues make it particularly adept at targeting pigmented bacteria and granulation tissue.