Can whitening toothpastes maintain the optical stability of enamel over time?
| Autor: | Juliana do Espírito Santo Russo, Juliana Nunes da Silva Meirelles Dória Maia, Carine Gnatiuk Mitraud, Eduardo Moreira da Silva, Laiza Tatiana Poskus, José Guilherme Antunes Guimarães |
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| Rok vydání: | 2018 |
| Předmět: |
Toothbrushing
Time Factors Color Dentistry Random Allocation 03 medical and health sciences 0302 clinical medicine Cigarette smoking Materials Testing Surface properties Tooth Bleaching Animals Dental enamel Bovine enamel 030212 general & internal medicine Tooth Bleaching Agents Bovine dentin General Dentistry Dentifrices Enamel paint Chemistry business.industry Smoking Significant difference Reproducibility of Results Original Articles 030206 dentistry Gloss (optics) Optical stability lcsh:RK1-715 lcsh:Dentistry visual_art Microscopy Electron Scanning visual_art.visual_art_medium Cattle business Toothpastes |
| Zdroj: | Journal of Applied Oral Science v.26 2018 Journal of applied oral science Universidade de São Paulo (USP) instacron:USP Journal of Applied Oral Science, Vol 26, Iss 0 (2018) Journal of Applied Oral Science, Volume: 26, Article number: e20160460, Published: 01 FEB 2018 Journal of Applied Oral Science |
| ISSN: | 1678-7765 1678-7757 |
| DOI: | 10.1590/1678-7757-2016-0460 |
| Popis: | Besides the effects on the health of individuals, cigarette smoking can also interfere with the appearance of their teeth. Objective: To evaluate the effect of cigarette smoking-toothbrushing-cycling (CSTC) with whitening toothpastes on the roughness and optical behavior of bovine enamel for eight weeks. Material and Methods: Thirty bovine dentin/enamel discs, 8.0 mm in diameter and 2.0 mm thick, were randomly divided into three groups according to the toothpastes: whitening (Colgate Luminous White - CW and Oral B 3D White - OW), and a non-whitening (Colgate - C). The roughness, color (CIE L*a*b* system), translucency and gloss were measured before and after the specimens were submitted to CSTC. The topography of the specimens was analyzed by scanning electron microscopy. During the first week, the specimens were daily subjected to the consumption of 20 cigarettes and brushed (40 strokes/100 g) with the toothpastes' slurries. Thereafter, the CSTC was weekly applied in an accumulated model (140 cigarettes/280 strokes) for seven weeks. The data were submitted to two-way ANOVA, Tukey's HSD test, and paired-t test (α=0.05). Results: The three toothpastes produced significant changes in roughness, color, translucency and gloss (p0.05), while OW produced the lowest color change and the translucency of C was lower than that of CW (p |
| Databáze: | OpenAIRE |
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