Intervention / Procedure:

Procedure performed by a single operator. The patients’ will be explained about the surgical procedures (Appendix I) and the possible outcomes in their vernacular language as well as written informed consent (Appendix II) shall be obtained. The demographic data of all the subjects will be recorded on the customized case history proforma (Appendix III).

The study will be conducted in patients with single or multiple Miller’s class I gingival recession defects. Clinical parameters like recession height (RH), the distance from the CEJ to gingival margin, recession width (RW), meiso-distal diameter at the CEJ, probing sulcus depth (PD), clinical attachment level (CAL), the sum of recession depth and probing depth, and width of keratinized tissue (KTW) i.e., distance from marginal gingiva to the mucogingival junction will be assessed.

In case of semilunar coronally repositioned flap, a semilunar incision, will be given following the curvature of the free gingival margin. The incision will curve apically far enough mid facially to ensure that the apical part of the flap rests on bone after it is brought down to cover the exposed root.

Incision will end into the papillae on each end of the tooth, but not all the way to the tip of the papillae, at least 2 mm will be left on either side of the flap. Using a 15c blade, split thickness dissection will be made from the initial incision line coronally, connected with an intrasulcular incision made mid facially.

Mid facial tissue will be then coronally positioned to the CEJ or to the height of adjacent papillae in case of interproximal recession. Tissue will be held in place against the tooth with moist gauze for 5 min.

In case of pin hole surgical technique, a minimal horizontal incision of 2 to 3mm will be made in the alveolar mucosa near the base of the vestibule apical to recipient site. Specially designed instruments [Transmucosal periosteal elevators right and left] are inserted through the entry of incision to elevate full thickness flap and will be guided by visualization of the shape and movement of the instruments through the mucosa and gingival tissue. This interproximal extension of the flap will result in a freely movable flap, which will be then positioned coronally to extend beyond the CEJ. For stabilization of flap, sutures will be used.