Iatrogenic cold urticaria induced by tetrafluoroethane cryosurgery for gingival depigmentation: A rare case report.

Introduction: Gingival depigmentation procedure has gained widespread popularity in the recent years due to increased esthetic demands among patients. Among the various depigmentation procedures, cryosurgery is inexpensive and straightforward method. This case report discusses a rare complication associated with tetrafluoroethane (TFE) cryosurgical depigmentation method.

A randomized split mouth clinical study to compare the clinical outcomes of subepithelial connective graft and acellular dermal matrix in Miller's Class I recession coverage therapy.

Background: According to the American Association of Periodontology, subepithelial connective tissue graft (SCTG) is one the most reliable surgical technique available for the treatment of gingival recession (GR) with Miller's Class I defect. However, due to its various disadvantages, alternate grafts such as acellular dermal matrix (ADM) grafts have been introduced for recession coverage. The present study compares the clinical outcome of these two grafts in treating Miller's Class I GR.