Gingival recession is defined as the apical displacement of gingival margin to the cemento enamel junction (CEJ) exposing the root surface (Gustavo et al 2021 ). The causative factors include faulty tooth brushing, underlying periodontal disease, malaligned tooth, high frenal attachment causing marginal gingival pull, subsequently leading to the exposure of root causing esthetic concerns, hypersensitivity, plaque retention and caries to the patients. 

Platelet concentrates have been widely utilized in field of periodontology and oral implantology, owing to their ability to rapidly stimulate vascularization of tissues (Miron et al., 2017). The rationale for utilising platelet concentrates is that these are the primary cells involved in wound healing, and they initiate the coagulation cascade, resulting in the formation of a fibrin meshwork that works as a provisional matrix, maintaining the space for regeneration. 

The preparation of platelets concentrates is based on the principle of the centrifugation process to separate particles of different densities. The potential benefits of platelet rich fibrin(PRF) obtained by horizontal method of centrifugation, in management of gingival recession has not yet been clearly established . Therefore, we propose this research to evaluate the clinical efficacy of H-PRF in management of Cairo’s RT1 and RT2 recessions in maxillary anteriors and premolars along with coronally advanced flap (CAF) and to compare the outcomes with that of PRF obtained by angle spin protocol.