Tribological study of oral care Silica

Sylvie Descartes (1) , Laure Courtieux (2) , Yves Berthier (1) , Francesca Peditto (3)

1 LaMCoS - Laboratoire de Mécanique des Contacts et des Structures [Villeurbanne]
2 GMD - Département Génie Mécanique Développement
3 Solvay Silica

This study focuses on the effect of mechanical parameters for a better understanding of oral care silica tribological behavior. Reciprocating motion tests were performed with variable parameters (tooth- brushes design, load, brushing speed, with and without silica slurries). The analysis of the tests is based on the third body concept.The flows of third body were evaluated in-situ and post-mortem related to the evolution of the friction coefficient. Clues to understand the mechanisms involved are given, showing the multi-scales and multi-physical aspects of the problem.

Domaines: Biomécanique [physics.med-ph]

Sylvie Descartes, Laure Courtieux, Yves Berthier, Francesca Peditto. Tribological study of oral care Silica. Tribology International, 2015, 82, pp.551-560. ⟨10.1016/j.triboint.2014.02.023⟩. ⟨hal-01283592⟩