Abstract: Nonsurgical endodontic treatment is a definitive predictable treatment option in most cases, but endodontic surgery may be indicated for teeth with persistent peri apical pathosis unresponsive to non-surgical approaches. This paper reports the case of post surgical bone healing using laser biostimulation and hydroxyapatite bone graft using CBCT analysis. Pre operative CBCT evaluation was done for each case. Post treatment evaluation was done clinically, radiographically and by CBCT analysis.