| Autor: |
Natália Almeida BASTOS, Sandro Basso BITENCOURT, Juliana Fraga Soares BOMBONATTI, Ana Paula Camatta DO NASCIMENTO, Claudia Machado de Almeida MATTOS, Valéria da Penha FREITAS, Jackeline Coutinho GUIMARÃES |
| Jazyk: |
angličtina |
| Rok vydání: |
2020 |
| Předmět: |
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| Zdroj: |
RGO: Revista Gaúcha de Odontologia, Vol 68 (2020) |
| Druh dokumentu: |
article |
| ISSN: |
1981-8637 |
| DOI: |
10.1590/1981-863720200003720190113 |
| Popis: |
ABSTRACT Objective The bleaching agents may interact with restorative materials, such as dental amalgam, providing an increase mercury ions (Hg) release, whose toxic effect is known. Whereas many patients have amalgam restorations (AR) and seek bleaching treatments, the present study aimed to evaluate in vitro the amount of Hg released from AR made with spherical alloy, after being subjected to different concentrations of carbamide peroxide (CP) for home bleaching. Methods 40 class I AR were prepared in bovine teeth. Afterthe restoration, the samples were randomly allocated into 4 groups (n = 10): C (control group), CP10 (CP 10%) CP15 (CP 15%) CP20 (CP 20%) and its treatments were simulated for 14 days for 6 hours daily. The Hg ions released was measured by energy dispersive X-ray spectroscopy (EDS) and surface changes were assessed in the Scanning Electron Microscope (SEM). Hg levels (percent mass) were recorded and the differences were statistically analyzed using the Kruskal-Wallis test and Dunn’s “Post hoc” test. Results Statisticalanalysis showed the bleaching treatment resulted in a higher Hg release (p |
| Databáze: |
Directory of Open Access Journals |
| Externí odkaz: |
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