Roncati M, et al. – The present study was undertaken to assess the clinical impacts of treatment with 808– and 980–nm diode lasers as an adjunct to a uniform and consistent nonsurgical periodontal treatment protocol (NSPTP) for initial probing pockets ≥ 6 mm with a 10–year follow–up. Findings revealed that compared to conventional debridement alone, the use of thermal diode lasers with NSPTP improves probing pocket depth (PPD) and increases clinical attachment level (CAL) in periodontal pockets ≥ 6 mm over the long term.