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Evaluation of microhardness, sorption, solubility, and color stability of bulk fill resins : a comparative study

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Evaluation of microhardness, sorption, solubility, and color stability of bulk fill resins : a comparative study

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dc.contributor.author Espíndola Castro, Luís Felipe es
dc.contributor.author Durão, Márcia-de Almeida es
dc.contributor.author Pereira, Tacyandra-Victória-Gomes es
dc.contributor.author Cordeiro, Ayanne-Karine-de Barros es
dc.contributor.author Monteiro, Gabriela-Queiroz-de Melo es
dc.date.accessioned 2021-05-11T11:39:46Z
dc.date.available 2021-05-11T11:39:46Z
dc.date.issued 2020 es
dc.identifier.citation Espíndola Castro, Luís Felipe ; Durão, Márcia-de Almeida ; Pereira, Tacyandra-Victória-Gomes ; Cordeiro, Ayanne-Karine-de Barros ; Monteiro, Gabriela-Queiroz-de Melo. Evaluation of microhardness, sorption, solubility, and color stability of bulk fill resins : a comparative study. En: Journal of Clinical and Experimental Dentistry, 12 11 2020: 1033-1038 es
dc.identifier.uri https://hdl.handle.net/10550/79321
dc.description.abstract Due to the increasing popularity of bulk fill resins, there is a concern that their components can be leached; this is because these are inserted in a single 4-5 mm increment. This in vitro study evaluated the microhardness, sorption, solubility, and color stability of three restorative bulk fill resins, namely: Filtek Bulk Fill (FBF), Tetric N-Ceram Bulk Fill (TNC), and Opus Bulk Fill (OBF). Cylindrical samples were fabricated to be 15 mm in diameter and 1 mm thick (n = 10). For the microhardness test, three random indentations were formulated on the samples using a micro-durometer with a load of 300 gf for 15 s. Sorption and solubility were then evaluated (ISO 4049: 2009). Color stability was analyzed with a digital spectrophotometer three times (initially, after 24 h, and after 7 d) during immersion in coffee and distilled water (control). The Shapiro-Wilk test was applied to analyze normality. The Mann-Whitney and Kruskal-Wallis tests were used to compare the groups and the immersion solution, with a significance level of 5%. There were a significant difference in microhardness (p<0.001), with the FBF group showing a higher value compared to the other groups (56.38). The highest average of sorption scores was observed in the OBF group (16.9 µg / mm3), followed by FBF (16.8 µg / mm3) and TNC (11.3 µg / mm3). Solubility was lowest in the OBF group (-2.83 µg / mm3), with a significant difference (p = 0.031). There was also a significant difference after 24 h in the mean ?E score of all groups (p<0.005). After one week of immersion, the group that pigmented most was OBF (p = 0.008). The three bulk fill resins had acceptable hardness, sorption, and solubility values. However, all groups showed a high pigmentation rate after 7 d of immersion in coffee. es
dc.title Evaluation of microhardness, sorption, solubility, and color stability of bulk fill resins : a comparative study es
dc.type journal article es_ES
dc.subject.unesco UNESCO::CIENCIAS MÉDICAS es
dc.identifier.doi 10.4317/jced.57599 es
dc.type.hasVersion VoR es_ES

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