Removable partial denture abutment tooth movement as affected by inclination of residual ridges and type of loading

Abstract

A laboratory study was performed to observe the effect of the sagittal inclination of the residual ridge, the bilateral-unilateral loading, and the load-nonloadside movement on the movement of abutment teeth. Results indicated that the angulation of the residual ridge in a sagittal plane alters the direction and magnitude of abutment tooth movement; that an abutment tooth showed greater movement as the nonload-side abutment when compared with its movement when it was the load-side abutment; and that bilateral loading of a removable partial denture is more favorable than unilateral loading in respect to abutment tooth movement.