Effects of bleaching agents on surface roughness of filling materials.
The aim of this study was to use a non-tactile optical measurement system to assess the effects of three bleaching agents' concentrations on the surface roughness of dental restoration materials. Two composites (Grandio, Venus) and one glass ionomer cement (Ketac Fil Plus) were used in this in vitro study. Specimens were treated with three different bleaching agents (16% and 22% carbamide peroxide (Polanight) and 38% hydrogen peroxide (Opalescence Boost)). Surface roughness was measured with an optical profilometer (Infinite Focus G3) before and after the bleaching treatment. Surface roughness increased in all tested specimens after bleaching treatment (p<0.05). Our in vitro study showed that dental bleaching agents influenced the surface roughness of different restoration materials, and the restoration material itself was shown to have an impact on alteration susceptibility. There seemed to be no clinical relevance in case of an optimal finish.
Faculty of Health, School of Dentistry, Department of Operative and Preventive Dentistry, Witten/Herdecke University.
Ljubisa
L
Markovic
Rainer Andreas
RA
Jordan
Marie-Claire
MC
Glasser
Wolfgang Hermann
WH
Arnold
Jan
J
Nebel
Wolfgang
W
Tillmann
Thomas
T
Ostermann
Stefan
S
Zimmer
D000077463:Carbamide Peroxide; D003188:Composite Resins / Q000737:chemistry; D003793:Dental Restoration, Permanent; D005899:Glass Ionomer Cements / Q000737:chemistry; D006861:Hydrogen Peroxide / Q000737:chemistry*; D066298:In Vitro Techniques; D008298:Maleates / Q000737:chemistry; D008422:Materials Testing; D010545:Peroxides / Q000737:chemistry*; D013499:Surface Properties; D014073:Tooth Bleaching / Q000379:methods*; D058205:Tooth Bleaching Agents / Q000737:chemistry*; D014508:Urea / Q000031:analogs & derivatives* / Q000737:chemistry
D003188:Composite Resins; D005899:Glass Ionomer Cements; C509998:Grandio; D008298:Maleates; D010545:Peroxides; D058205:Tooth Bleaching Agents; C488393:Venus (composite resin); D000077463:Carbamide Peroxide; C040964:Ketac-Fil; D014508:Urea; D006861:Hydrogen Peroxide