Gingival Biotype Enhancement and Root Coverage Using Human Placental Chorion Membrane

Introduction: Various surgical techniques have been proposed to cover denuded root surfaces, but, the qualitative parameters of gingiva, such as gingival biotype, have been overlooked. Very few attempts have been made to convert gingival biotype to a more favorable one. This case report shows the potential of human placental chorion membrane for root coverage and enhancement of gingival biotype. The rationale behind its use was based on the membrane's properties. Case Presentation: A 56‐year‐old male with a vertical recession depth of 2 mm in the maxillary right canine was treated with coronally advanced flap along with placement of chorion membrane. Before treatment, the soft‐tissue biotype examined through transgingival probing was thin. Three months after surgery, there was 100% root coverage, and the soft‐tissue biotype also changed from thin to thick. Conclusion: Chorion membrane, which is a rich source of various collagen and non‐collagen proteins, such as laminin, fibronectin, and proteoglycans, can be used for root coverage and enhancement of thin gingival biotype to thick biotype.