Nanomechanical properties, SEM, and EDS microanalysis of dentin treated with 2.5% titanium tetrafluoride, before and after an erosive challenge
| Autor: | Ana K. Bedran-Russo, Fabiana Mantovani Gomes França, Enrico Coser Bridi, Cecilia Pedroso Turssi, Flávia Lucisano Botelho do Amaral, A.A. Leme, Roberta Tarkany Basting |
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| Rok vydání: | 2014 |
| Předmět: |
Materials science
business.industry Scanning electron microscope Biomedical Engineering chemistry.chemical_element Dentistry Microanalysis Biomaterials chemistry.chemical_compound medicine.anatomical_structure stomatognathic system chemistry Intertubular dentin Dentin medicine Titanium tetrafluoride business Citric acid Titanium Nuclear chemistry |
| Zdroj: | Journal of Biomedical Materials Research Part B: Applied Biomaterials. 103:783-789 |
| ISSN: | 1552-4973 |
| DOI: | 10.1002/jbm.b.33254 |
| Popis: | The aim was to assess the nanohardness (H) and the reduced modulus of elasticity (Er) of 2.5% titanium tetrafluoride (TiF4) modified dentin, before and after an erosive challenge with 0.3% citric acid (CA). Exposed dentin surfaces were divided into two groups (n = 5): (1) Control—no dentin pretreatment with TiF4 prior to etching with CA, and (2) Experimental—dentin pretreatment with TiF4 + CA. The H and the Er of intertubular dentin were measured using a triboindenter at different time points: baseline for both groups, after using 2.5% TiF4 for the experimental group, and after using CA for both the experimental and the control groups. Scanning electron microscope and energy dispersive X-ray spectroscopy (EDS) analysis of the dentin surfaces were undertaken at the same time points for both groups. Two-way ANOVA for randomized block design was applied. There was significant interaction between the application of the TiF4 solution and different time points (p = 0.001 for H and p |
| Databáze: | OpenAIRE |
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