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Title

Laboratory evaluation of the effect of toothbrushing on surface gloss of resin composites
Authors
Lefever, Dorien
Krejci, Ivo
Ardu, Stefano
Published in American Journal of Dentistry. 2014, vol. 27, no. 1, p. 42-6
Abstract Purpose: To determine changes in surface gloss of different composite materials after laboratory toothbrushing simulation. Methods: 40 specimens were fabricated for each material (Filtek Supreme XTE, Renamel, Empress Direct, Gradia Direct, Edelweiss, G-aenial, Venus Pearl and Venus Diamond) and polished with 120-, 220-, 500-, 1200-, 2400- and 4000- grit SiC abrasive paper, respectively. Gloss measurements were made with a glossmeter prior to testing procedures and then subjected to simulated toothbrushing for 5, 15, 30 and 60 minutes by means of an electrical toothbrush with a pressure of 2N while being immersed in a 50 RDA toothpaste slurry. Four samples per group were analyzed under SEM immediately after polishing procedures and four samples after 60 minutes simulated toothbrushing in order to evaluate the causes of the gloss decrease. Human enamel was the control group. Statistical analysis was performed using Kruskal Wallis and Tukey’s post-hoc test (P< 0.05).
Identifiers
PMID: 24902404
Full text
Article (Published version) (218 Kb) - public document Free access
Structures
Faculté de médecine / Section de médecine dentaire / Division de cariologie et d'endodontie
Research group Groupe Krejci Ivo (médecine dentaire) (240)
Citation
(ISO format) 		LEFEVER, Dorien, KREJCI, Ivo, ARDU, Stefano. Laboratory evaluation of the effect of toothbrushing on surface gloss of resin composites. In: American Journal of Dentistry, 2014, vol. 27, n° 1, p. 42-6. https://archive-ouverte.unige.ch/unige:42698

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Deposited on : 2014-12-08

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