Physicochemical characterization of two bulk fill composites at different depths
ObjectivesThis study analyzed the physical-chemical behavior of 2 bulk fill resin composites (BFCs; Filtek Bulk Fill [FBF], and Tetric-N-Ceram Bulk Fill [TBF]) used in 2- and 4-mm increments and compared them with a conventional resin composite (Filtek Z250).Materials and MethodsFlexural strength an...
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Korean Academy of Conservative Dentistry
2021-08-01
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| Series: | Restorative Dentistry & Endodontics |
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| Online Access: | http://rde.ac/upload/pdf/rde-46-e39.pdf |
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| author | Guillermo Grazioli Carlos Enrique Cuevas-Suárez Leina Nakanishi Alejandro Francia Rafael Ratto de Moraes |
| author_facet | Guillermo Grazioli Carlos Enrique Cuevas-Suárez Leina Nakanishi Alejandro Francia Rafael Ratto de Moraes |
| author_sort | Guillermo Grazioli |
| collection | DOAJ |
| description | ObjectivesThis study analyzed the physical-chemical behavior of 2 bulk fill resin composites (BFCs; Filtek Bulk Fill [FBF], and Tetric-N-Ceram Bulk Fill [TBF]) used in 2- and 4-mm increments and compared them with a conventional resin composite (Filtek Z250).Materials and MethodsFlexural strength and elastic modulus were evaluated by using a 3-point bending test. Knoop hardness was measured at depth areas 0–1, 1–2, 2–3, and 3–4 mm. The translucency parameter was measured using an optical spectrophotometer. Real-time polymerization kinetics was analyzed using Fourier transform infrared spectroscopy.ResultsFlexural strength was similar among the materials, while TBF showed lower elastic modulus (Z250: 6.6 ± 1.3, FBF: 6.4 ± 0.9, TBF: 4.3 ± 1.3). The hardness of Z250 was similar only between 0–1 mm and 1–2 mm. Both BFCs had similar hardness until 2–3 mm, and showed significant decreases at 3–4 mm (FBF: 33.45 ± 1.95 at 0–1 mm to 23.19 ± 4.32 at 3–4 mm, TBF: 23.17 ± 2.51 at 0–1 mm to 15.11 ± 1.94 at 3–4 mm). The BFCs showed higher translucency than Z250. The polymerization kinetics of all the materials were similar at 2-mm increments. At 4-mm, only TBF had a similar degree of conversion compared with 2 mm.ConclusionsThe BFCs tested had similar performance compared to the conventional composite when used in up to 2-mm increments. When the increment was thicker, the BFCs were properly polymerized only up to 3 mm. |
| format | Article |
| id | doaj-art-dbc7e39e6a8540b59a8911f4fbf43860 |
| institution | Matheson Library |
| issn | 2234-7658 2234-7666 |
| language | English |
| publishDate | 2021-08-01 |
| publisher | Korean Academy of Conservative Dentistry |
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| series | Restorative Dentistry & Endodontics |
| spelling | doaj-art-dbc7e39e6a8540b59a8911f4fbf438602025-07-03T04:25:05ZengKorean Academy of Conservative DentistryRestorative Dentistry & Endodontics2234-76582234-76662021-08-01463e3910.5395/rde.2021.46.e39977Physicochemical characterization of two bulk fill composites at different depthsGuillermo Grazioli0Carlos Enrique Cuevas-Suárez1Leina Nakanishi2Alejandro Francia3Rafael Ratto de Moraes4Department of Dental Materials, School of Dentistry, Universidad de la República, Montevideo, UruguayLaboratory of Dental Materials, Academic Area of Dentistry, Autonomous University of Hidalgo State, Pachuca, MéxicoGraduate Program in Dentistry, Federal University of Pelotas, Pelotas, BrazilDepartment of General and Oral Physiology, School of Dentistry, Universidad de la República, Montevideo, UruguayGraduate Program in Dentistry, Federal University of Pelotas, Pelotas, BrazilObjectivesThis study analyzed the physical-chemical behavior of 2 bulk fill resin composites (BFCs; Filtek Bulk Fill [FBF], and Tetric-N-Ceram Bulk Fill [TBF]) used in 2- and 4-mm increments and compared them with a conventional resin composite (Filtek Z250).Materials and MethodsFlexural strength and elastic modulus were evaluated by using a 3-point bending test. Knoop hardness was measured at depth areas 0–1, 1–2, 2–3, and 3–4 mm. The translucency parameter was measured using an optical spectrophotometer. Real-time polymerization kinetics was analyzed using Fourier transform infrared spectroscopy.ResultsFlexural strength was similar among the materials, while TBF showed lower elastic modulus (Z250: 6.6 ± 1.3, FBF: 6.4 ± 0.9, TBF: 4.3 ± 1.3). The hardness of Z250 was similar only between 0–1 mm and 1–2 mm. Both BFCs had similar hardness until 2–3 mm, and showed significant decreases at 3–4 mm (FBF: 33.45 ± 1.95 at 0–1 mm to 23.19 ± 4.32 at 3–4 mm, TBF: 23.17 ± 2.51 at 0–1 mm to 15.11 ± 1.94 at 3–4 mm). The BFCs showed higher translucency than Z250. The polymerization kinetics of all the materials were similar at 2-mm increments. At 4-mm, only TBF had a similar degree of conversion compared with 2 mm.ConclusionsThe BFCs tested had similar performance compared to the conventional composite when used in up to 2-mm increments. When the increment was thicker, the BFCs were properly polymerized only up to 3 mm.http://rde.ac/upload/pdf/rde-46-e39.pdfresin compositeflexural strengthhardnesspolymerization |
| spellingShingle | Guillermo Grazioli Carlos Enrique Cuevas-Suárez Leina Nakanishi Alejandro Francia Rafael Ratto de Moraes Physicochemical characterization of two bulk fill composites at different depths Restorative Dentistry & Endodontics resin composite flexural strength hardness polymerization |
| title | Physicochemical characterization of two bulk fill composites at different depths |
| title_full | Physicochemical characterization of two bulk fill composites at different depths |
| title_fullStr | Physicochemical characterization of two bulk fill composites at different depths |
| title_full_unstemmed | Physicochemical characterization of two bulk fill composites at different depths |
| title_short | Physicochemical characterization of two bulk fill composites at different depths |
| title_sort | physicochemical characterization of two bulk fill composites at different depths |
| topic | resin composite flexural strength hardness polymerization |
| url | http://rde.ac/upload/pdf/rde-46-e39.pdf |
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