Dr Rehbar Khan et al. 2022. Effect of Laser Bio stimulation and Bone Graft in Treatment of a Large Periapical Lesion – A CBCT Analysis. IAR Journal of Medicine and Surgery Research. 3, 4 (Aug. 2022), 1–4. DOI:https://doi.org/10.47310/iarjmsr.2022.V03i04.01.