Mandibular Ramus

A mandibular ramus is a quadrilateral process projecting upward and backward from the posterior part of the body of the mandible and ending on the other side at the temporomandibular joint in a saddle-like indentation (called the sigmoid notch) between the coronoid and condylar processes. It may serve as a source for bone grafting. The lateral surface of the mandibular ramus is the attachment site of the masseter muscle. In bone grafting, the mandibular ramus provides a good source of autogenous cortical graft best suited for the correction of ridge deficiencies prior to the placement of an implant. Grafts from this location generally require shorter periods of healing, show low levels of resorption, and maintain their density. Obtaining graft bone from the mandibular ramus over other possible facial sources also creates less noticeable facial scars or alterations and is less likely to cause nerve or sensory issues or discomfort.