Fourty four participants will be selected and randomly assigned to test and control sites by computer generated randomization method.

Clinical attachment level, probing pocket depth, bleeding on probing and patient pain perception by visual analogue scale will be recorded at baseline, 3 months and 6 months.

After scaling and root planing of the selected sites in both groups.  Patients will be asked to return after one week for an assessment of their oral hygiene practices and additional procedures. Two quadrants with deep periodontal pockets will be chosen in each participant. The control areas will undergo LANAP treatment alone where this procedure will be done under local anesthesia. An optic fiber tip of Diode laser measuring 0.3s is placed parallel to the root surface, to carry away the epithelium lining of the pocket in coronal to apical motion to reflect the gingival flap. The first pass laser or troughing dissipates energy at 4 W, free running 100 milliseconds pulse expels the unhealthy lining of the pocket, and the pocket is closed by compressing gingival tissues against the root surface which creates a firm fibrin clot. While the test areas will receive a combination of LANAP and PRF. The prepared PRF will be compressed to a 1 mm thickness using gentle pressure between sterile tongue depressors. The flattened PRF will then be cut into smaller pieces and inserted into the periodontal pocket, filling it from the bottom to the gum line. A dull interdental gingivectomy knife will be employed to place the PRF membrane within the pocket.