 Flap Design Intracrevicular incisions were made and buccal and lingual mucoperiosteal flaps, including at least one tooth mesial and another distal the tooth being treated, were elevated by blunt dissection. Extreme care was taken to preserve the marginal gingiva and inter-dental tissue to achieve better closure of the treated sites. Thus, the defect-associated inter-dental papilla was accessed with papilla preservation flap techniques Takey 1985, Cortellini et al. 1995, Cortellini et al. 1999 according to indications. A vertical releasing incision was performed at the mesial aspect of the flap whenever necessary to obtain optimized, tensionless, access to the surgical area. 