ABRASIVE EFFECT OF DENTAL TOOTHPASTE ON THE SURFACE OF COMPOSITES

Aim: To compare in vitro the effect of brushing with various toothpastes compositions on the surface of 2 and 3 micro-hybrid composite resins containing opposing manifold. Materials and methods:  25 disks were used 5 different types of composite resins (3 microparticules and 2 nanoparticles 2) total 50 surfaces. These were separated into four groups to be exposed to the action of two types of toothpaste (conventional bleaching) plus a control group without toothpaste and brushing were applied between 10,000 and 50,000 oscillations per minute. Surface was photographed with incident laser system captured by a CDD camera and 3-D representation, determining degree luminosity density inferred by the degree of abrasion.  Results:  The brushing with conventional toothpaste produced optical and physical changes on the surface of the composite, both micro and nanofiller (52.46% average reflection of light = one tenth of a mm of loss). The effect of brushing with whitening paste was 56.7% average reflection of light = 1.18 mm-tenths of a loss of resin.  Conclusion:  1. Brushing with toothpaste conventional optical and physical changes occur on the surface of composite resins and nanofiller microfiller.

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