Dual-path removable partial denture treatment for Class IV edentulous patients with deficient canine cingula.

Many patients, because of trauma or periodontal disease, are missing their permanent maxillary incisor teeth. Conservative and esthetic restorative treatment for many of these patients would be a maxillary dual-path of insertion removable partial denture. However, in many patients this type of restoration is contraindicated, because of the flat lingual anatomy of the maxillary canines. This problem has been defined as deficient canine cingula. A process that uses the dual-path concept and the maxillary first premolar teeth to circumvent this problem is described.