Nd:YAG Laser Versus Diode Laser Assisted New Attachment Procedure (Lanap) in the Management of Stage II Periodontitis

Inclusion Criteria: * Periodontal diagnosis of stage II periodontitis. * Residual periodontal pocket ≥4 mm, 3-4 mm clinical attachment loss with horizontal bone loss higher than 15% in radiography. * O'Leary plaque index \<10%. Exclusion Criteria: * Patients with furcation involvement. * Class II/III tooth mobility. * Smokers who smoke more than 10 cigarettes per day. * Patients with any systemic condition possibly affecting the outcome of periodontal therapy. * Patients who had received any local or systemic anti-inflammatory medications or antibiotics within the last 6 months. * Alcohol consumers. * Pregnant or lactating women. * Patients with parafunctional habits.