Hansen C A, Iverson G W
J Prosthet Dent. 1986 Aug;56(2):199-203. doi: 10.1016/0022-3913(86)90472-5.
The use of a distofacial ridge on a maxillary canine abutment for a distal-extension base of a removable partial denture is described. The distofacial ridge will permit the placement of a less conspicuous I-bar arm on the distofacial surface of the tooth. The ridge provides bracing against distal movement during function and thus prevents the subsequent loss of retention for the prosthesis. It also permits a more precise path of insertion and withdrawal for the prosthesis. Three methods of establishing a distofacial ridge on a canine abutment are described.
