Interplay between Experimental Dental Pellicles and Stannous-Containing Toothpaste on Dental Erosion-Abrasion

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Abstract
The interaction between stannous-containing dentifrice slurry and experimentally formed pellicles was investigated on enamel and root dentin using an erosion-remineralization-abrasion cycling model. The remineralizing solutions contained no proteins (negative control), mucin, casein, mucin + casein or albumin, for experimental pellicle formation. Toothbrushing was performed with fluoride toothpaste, with (TP + Sn) and without (TP) 3,500 ppm Sn. TP + Sn reduced surface loss for both enamel and root dentin (p < 0.05). The association between TP + Sn and albumin resulted in a significantly lower enamel surface loss (p < 0.05), suggesting positive interaction of stannous ion and albumin on dental erosion-abrasion protection. A similar trend was observed for root dentin, although less pronounced.

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