Flap surgery in conjunction with enamel matrix derivative
Miller class I (recession does not extend to the mucogingival junction (MGJ)) and Miller class II gingival recessions (recession reaches or goes beyond the MGJ) are characterized by intact interdental tissues and have a good prognosis in terms of complete root coverage. Enamel matrix derivative (Straumann® Emdogain®) used in recession type defects has been shown to improve root coverage and to increase the width of keratinized tissue when compared to conventional flap surgery (coronally advanced flap, CAF) alone [1, 2]. For thin gingival biotypes (thickness ≤ 1.0 mm), a volume-supporting approach, i.e. the additional use of an autologous soft tissue graft or a collagen matrix (mucoderm®) may be indicated.