Conclusions
Photobiomodulation therapy (PBMT) can improve wound healing after surgical gingivectomy, but application of (2%) high molecular weight hyaluronic acid gel as an adjunctive to PBMT was found to have significant clinical effects and higher power of repair among test group when compared to that achieved by PBMT alone in control group. Within the limitation of the study, it could be concluded that HA gel improved the healing outcomes by decreasing the time required for complete wound enclose and re-epithelialization.