Bonding performance and mechanical properties of flowable bulk-fill and traditional composites in high c-factor cavity models
| العنوان: | Bonding performance and mechanical properties of flowable bulk-fill and traditional composites in high c-factor cavity models |
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| المؤلفون: | Lucas José de Azevedo Silva, Letícia Virgínia de Freitas Chaves, Saulo Geraldeli, Roberta Caroline Bruschi Alonso, Rodolfo Xavier de Sousa Lima, Boniek Castillo Dutra Borges |
| المصدر: | Journal of Conservative Dentistry : JCD |
| بيانات النشر: | Wolters Kluwer - Medknow, 2020. |
| سنة النشر: | 2020 |
| مصطلحات موضوعية: | Universal testing machine, Materials science, Bond strength, Composite number, Composite, 030206 dentistry, 02 engineering and technology, 021001 nanoscience & nanotechnology, Stress (mechanics), 03 medical and health sciences, 0302 clinical medicine, Flexural strength, fracture mechanics, light-cured resin composite, Original Article, Composite material, 0210 nano-technology, General Dentistry, Elastic modulus, Extensometer, Shrinkage, push-out bond strength |
| الوصف: | Objectives: The aim of this study is to evaluate bond strength (BS), shrinkage stress (SS), flexural strength (FS), and elastic modulus (E) of three flowable bulk fill in comparison with conventional composites. Materials and Methods: Three bulk fill (Filtek Bulk Fill Flow, Surefil SDR, X-tra Base) and three conventional composites (Filtek Z250 XT, Grandioso, Dentsply TPH3) were used. For BS, conical cavities (n = 10) were prepared in bovine dentine and restored with materials and were analyzed through push-out test in a universal testing machine (UTM). For FS/EM, 60 (n = 10) bar specimens (7 mm × 2 mm × 1 mm) were prepared and evaluated with a UTM. SS was measured in UTM coupled to an extensometer (n = 5). The data were statistically evaluated using one-way ANOVA/Tukey tests (P < 0.05). Results: Conventional composites showed higher E when compared to bulk-fill composites. Regarding FS, they showed similar results, except for (XBF) Xtra Bulk Fill that was inferior. SS and BS of bulk-fill composites were significantly lower and higher than conventional composites, respectively, except for XBF, which showed similar BS to conventional ones. Conclusions: Flowable bulk-fill composites, except XBF, showed higher BS, lower SS, similar FS, and lower E when compared to conventional ones. |
| اللغة: | English |
| تدمد: | 0974-5203 0972-0707 |
| URL الوصول: | https://explore.openaire.eu/search/publication?articleId=doi_dedup___::a89ff11f97d56a0f513fec97b3710a2b http://europepmc.org/articles/PMC7657427 |
| حقوق: | OPEN |
| رقم الأكسشن: | edsair.doi.dedup.....a89ff11f97d56a0f513fec97b3710a2b |
| قاعدة البيانات: | OpenAIRE |
| تدمد: | 09745203 09720707 |
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