Laser Photobiomodulation After Dental Implant Surgery: A Comparison of 650 nm and 810 nm Diode Lasers

This randomized, double-blind, sham-controlled clinical trial assessed the short-term effects of photobiomodulation (PBM) using 650 nm and 810 nm diode lasers on postoperative pain, analgesic intake, and oral health-related quality of life (OHRQoL) following single dental implant placement in the posterior maxilla. Methods: Sixty participants were randomized into three equal groups (650 nm PBM, 810 nm PBM, or sham). All underwent a standardized H-design flap surgery and implant placement. PBM was applied at three points around the implant (buccal, palatal, crestal) using 100 mW power for 60 seconds per point (total 18 J), repeated within 48 hours. Outcomes: Primary outcome: Pain intensity measured using an 11-point Numeric Rating Scale (NRS) at 2, 6, 12, 24, 48, and 72 hours after surgery. Secondary outcomes: Number of analgesics used (acetaminophen 1000 mg as needed), and changes in OHRQoL as measured by the OHIP-14 questionnaire at baseline, 1 week after implant placement, and 1 week after crown delivery.