Physical-mechanical properties of Bis-EMA based root canal sealer with different fillers addition
dc.contributor.author | Souza, Marcela Oliveira de | pt_BR |
dc.contributor.author | Leitune, Vicente Castelo Branco | pt_BR |
dc.contributor.author | Bohn, Priscila Veit | pt_BR |
dc.contributor.author | Samuel, Susana Maria Werner | pt_BR |
dc.contributor.author | Collares, Fabrício Mezzomo | pt_BR |
dc.date.accessioned | 2016-11-26T02:19:32Z | pt_BR |
dc.date.issued | 2015 | pt_BR |
dc.identifier.issn | 0972-0707 | pt_BR |
dc.identifier.uri | http://hdl.handle.net/10183/149897 | pt_BR |
dc.description.abstract | Aim: To evaluate influence of three different filler particles on an experimental Bisphenol A ethoxylated dimethacrylate (Bis-EMA) based root filling material. Materials and Methods: Resin-based endodontic sealers were produced using Bis-EMA, camphorquinone, ethyl 4-dimethylaminobenzoate (EDAB), N, N-dihydroxyethyl-p-toluidine (DHEPT), butylated hydroxytoluene (BHT), and benzoyl peroxide. The experimental groups were formulated adding 10, 20, 30, 40, and 50% of calcium tungstate (CaWO 4 ), ytterbium trifluoride(YbF 3 ), and tantalum oxide(Ta 2 O 5 ). Flow, thickness, and radiopacity tests were conducted in accordance with ISO 6876. Sorption and solubility (SL) tests were conducted in accordance with ISO 4049, pH was measured with a pH meter, and degree of conversion (DC) was evaluated with Fourier transform infrared spectroscopy (FTIR). For radiopacity, two-way analysis of variance (ANOVA) and Tukey«SQ»s multiple comparison test was performed. For DC analysis, one-way ANOVA and Tukey«SQ»s multiple comparison test was performed. All statistical analyses were performed with a significance level of 5%. Results: All groups showed lower flow with increased filler concentration. All groups showed film thickness values lower than 50μm, as ISO recommends, except CaWO 4 50% group (76.7μm). pH values varied from 5.95 (± 0.07) in YbF 3 40% group to 6.90 (± 0.07) in Ta 2 O 5 40% group. In the radiopacity test, YbF 3 30%, Ta 2 O 5 40%, and Ta 2 O 5 50% groups showed no statistical significant difference to 3mmAl. Ta 2 O 5 and YbF 3 groups in 10, 20, and 30% concentrations presented sorption and SL values as ISOrecommendation. Addition ofTa 2 O 5 and CaWO 4 decreased DC after 14 days. YbF 3 addition showed no difference in DC from control group. Conclusion: YbF 3 filler addition promoted higher properties compared to CaWO 4 and Ta 2 O 5 on Bis-EMA based root canal sealer. | en |
dc.format.mimetype | application/pdf | pt_BR |
dc.language.iso | eng | pt_BR |
dc.relation.ispartof | Journal of conservative dentistry. Amritsar. Vol. 18, no. 3 (May/June 2015), p. 227-231 | pt_BR |
dc.rights | Open Access | en |
dc.subject | Cimentos | pt_BR |
dc.subject | Resinas odontologicas | pt_BR |
dc.subject | Endodontia | pt_BR |
dc.subject | Materiais odontológicos | pt_BR |
dc.title | Physical-mechanical properties of Bis-EMA based root canal sealer with different fillers addition | pt_BR |
dc.type | Artigo de periódico | pt_BR |
dc.identifier.nrb | 000988114 | pt_BR |
dc.type.origin | Estrangeiro | pt_BR |
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