Abstract
The present study aims to evaluate in vitro the effect of desensitizing toothpastes, regular and whitening versions, on the dentine surface loss using an erosion-abrasion cycling model. Seventy human third molars will be used. Dentin slabs of 4mm x 4mm x 2mm from the radicular portion will be cut and embedded in acrylic resin. The resulting specimens will be ground flat and polished with …