Journal article
Nanomechanical properties, SEM, and EDS microanalysis of dentin treated with 2.5% titanium tetrafluoride, before and after an erosive challenge
Journal of biomedical materials research. Part B, Applied biomaterials, Vol.103(4), pp.783-789
05/01/2015
DOI: 10.1002/jbm.b.33254
PMID: 25111838
Abstract
The aim was to assess the nanohardness (H) and the reduced modulus of elasticity (E-r) 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) Controlno dentin pretreatment with TiF4 prior to etching with CA, and (2) Experimentaldentin pretreatment with TiF4+CA. The H and the E-r 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<0.001 for E-r), identified by Tukey's test. Erosive challenge provided a significant decrease in H and E-r mean values. The TiF4 solution caused a significant increase in H and E-r values, but no significant differences were found between post-TiF4 and post-CA application. TiF4 application produced a precipitate surface layer on intertubular and intratubular dentin. EDS analysis indicated the presence of titanium. The H and E-r of the dentin surface were greatly increased after application of 2.5% TiF4. TiF4 may modify the micromorphology of the dentin surface and produces an erosive resistance surface. (c) 2014 Wiley Periodicals, Inc. J Biomed Mater Res Part B: Appl Biomater, 103B: 783-789, 2015.
Details
- Title: Subtitle
- Nanomechanical properties, SEM, and EDS microanalysis of dentin treated with 2.5% titanium tetrafluoride, before and after an erosive challenge
- Creators
- Roberta Tarkany Basting - Faculdade São Leopoldo MandicAriene Arcas Leme - University of Illinois at ChicagoEnrico Coser Bridi - Faculdade São Leopoldo MandicFlavia Lucisano Botelho do Amaral - Sao Leopoldo Mandic Sch Dent & Res Inst, Dept Restorat Dent, Sao Paulo, BrazilFabiana Mantovani Gomes Franca - Sao Leopoldo Mandic Sch Dent & Res Inst, Dept Restorat Dent, Sao Paulo, BrazilCecilia Pedroso Turssi - Faculdade São Leopoldo MandicAna Karina Bedran-Russo - University of Illinois at Chicago
- Resource Type
- Journal article
- Publication Details
- Journal of biomedical materials research. Part B, Applied biomaterials, Vol.103(4), pp.783-789
- Publisher
- Wiley
- DOI
- 10.1002/jbm.b.33254
- PMID
- 25111838
- ISSN
- 1552-4973
- eISSN
- 1552-4981
- Number of pages
- 7
- Language
- English
- Date published
- 05/01/2015
- Academic Unit
- Operative Dentistry
- Record Identifier
- 9984367755502771
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