This study reports the results of a long-term evaluation of conical crown-retained dentures. One hundred fifty-two restorations that had been in place for over 10 years were analyzed. Restorations were divided according to the Kennedy classification. Abutment and periodontal health, occlusion, retention, and frequency of relining and repair were among the factors evaluated. Good prognoses of removable partial dentures were shown in Kennedy Classes I, II, and III arches. However, some of the restorations placed on only a few remaining abutments showed rather unfavorable situations with almost all of the factors evaluated.