Effect of TiF/NaF and chitosan solutions on the development of enamel caries under a microcosm biofilm model.

Objectives: To evaluate the effect of experimental solutions containing TiF/NaF and chitosan on bacterial species and on enamel caries prevention.

Methods: Microcosm biofilm was produced from human saliva mixed with McBain saliva (0.2% sucrose) on bovine enamel for five days, under 5% CO and 37 °C.

Effect of chitosan solutions with or without fluoride on the protection against dentin erosion in vitro.

The aim of this study was to assess the protective effect of experimental solutions containing chitosan at different viscosities with or without fluoride (TiF /NaF) on dentin loss in vitro. Bovine dentin samples (n = 15) were prepared and allocated to one of the following treatments: (i) 0.5% chitosan (500 mPas); (ii) 0.

The effect of commercial whitening toothpastes on erosive dentin wear in vitro.

Objectives: This study evaluated the erosive tooth wear promoted by commercial whitening toothpastes on eroded dentin in vitro.

Design: Ninety bovine roots were embedded, polished and subjected to the baseline profile analysis. The samples were protected in 2/3 of the dentin surface and were randomly assigned to 6 groups (n = 15/group): Oral-B 3D White; Close-up Diamond Attraction Power White; Sorriso Xtreme White 4D; Colgate Luminous White; Crest and erosion only.