The goal of this study was to determine whether post-operative low-level laser therapy of the implant site has any impact on pain relief or crestal bone loss around dental implants. Materials and Methods In the current randomised study, 28 implants were placed in a total of 16 participants who had tooth loss in the mandibular posterior region on both sides, followed by low-level laser therapy on the investigation side. Crestal bone level was evaluated radiographically at 4 and 6 months, and post-operative pain was quantified using visual analogue scale (VAS) scoring from the start to 8 days. The data were assessed using statistics. Result At 4 and 6 months, the test group's mean crestal bone loss was 0.640.12 and 0.860.35, compared to 1.240.25 and 1.370.53 for the control group. There was a significant difference in the VAS pain scores between the two groups on days 2 and 4.