The effect of brushing with toothpaste containing nano calcium carbonate upon nanofill composite resin surface roughness

The effects of activated charcoal and calcium carbonate based toothpastes on surface properties of composite resin restorative materials.

“…Both the toothpastes had an abrasive effect on the resin matrix, leaving the filler exposed or dislodged. Pervious study also detected a significant increase in composite surface roughness after using calcium carbonate tooth paste 21 . Studies show that composite resin with a surface roughness value of more than 1μm can make patients feel uncomfortable, because the roughness is detectable by the tongue 22 , accordingly, the patient may not detect the roughness in the composite surface after using the tested toothpastes according the current study results.…”

Effect of Dentifrices with Different Abrasives on the Surface Roughness of a Nano Composite Resins materials

“…Regarding the composite assessed in this study, Z350 and Ceram X were chosen because both of them had nanoparticle fillers in their composition. Resin composites with nanofiller has good aesthetic result and good wear resistance (25) . Nanoclusters has been also improved to be better wear resistance as the silane would fill the gaps and voids that observed in microhybrid composites (28) .…”

“…Restorative materials have a lot of refinement in the mechanical, physical ,chemical properties and esthetics since their introduction (1) .The composites produced with the aid of nanotechnology became popular as they offer longevity and better esthetic (2) . The recent advances in nanotechnology yielded nano-filled and nano-ceramic composite resin materials (3) Nanofill composites are composted of nanoclusters and nanosilica particles, the nanocluster fillers are collections of particles of nanosize and act as one unit to achieve higher filler strength and loading up to 80% of the resin matrix's total weight (3,4) .…”

“…The organically modified nanoceramic composite was developed by combining the nanotechnology and ormocer technology. This composite contains methacrylate-modified, silicon dioxide-containing nanofiller of 1.1-1.5 μm in size that account for 76% of total weight and resin matrix that is replaced by a matrix full of highly dispersed methacrylate-modified polysiloxane particles (2,5) .…”

Calcium Carbonate as Functional Filler in Polyamide 12-Manipulation of the Thermal and Mechanical Properties

“…Calcium carbonate is an abundant filler, which imparts advantageous functionality as filler and coating pigment for paper, consumer goods, paints and adhesives, rubbers and plastics [22][23][24][25][26][27][28][29][30]. Calcium carbonate, in a form usable as a mineral filler in such applications, is typically produced either by crushing/milling (top-down process) or a synthetic precipitation (bottom-up process).…”