Depth-Related Curing Potential of Ormocer- and Dimethacrylate-Based Bulk-Fill Composites
The aim of this in vitro study was to investigate the degree of C=C double bond conversion of high-viscosity dimethacrylate- or ormocer-based bulk-fill composites as a function of measurement depth. Four bulk-fill composites (Tetric EvoCeram Bulk Fill, x-tra fil, SonicFill, and Bulk Ormocer) and the...
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MDPI AG
2021-11-01
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| Online Access: | https://www.mdpi.com/1996-1944/14/22/6753 |
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| author | Ramona S. Oltramare Reto Odermatt Phoebe Burrer Thomas Attin Tobias T. Tauböck |
| author_facet | Ramona S. Oltramare Reto Odermatt Phoebe Burrer Thomas Attin Tobias T. Tauböck |
| author_sort | Ramona S. Oltramare |
| collection | DOAJ |
| description | The aim of this in vitro study was to investigate the degree of C=C double bond conversion of high-viscosity dimethacrylate- or ormocer-based bulk-fill composites as a function of measurement depth. Four bulk-fill composites (Tetric EvoCeram Bulk Fill, x-tra fil, SonicFill, and Bulk Ormocer) and the conventional nanohybrid composite Tetric EvoCeram were applied in standardized Class II cavities (<i>n</i> = 6 per group) and photoactivated for 20 s at 1350 mW/cm<sup>2</sup>. The degree of conversion of the composites was assessed using Fourier-transform infrared spectroscopy at seven measurement depths (0.15, 1, 2, 3, 4, 5, 6 mm). Data were analyzed using repeated measures ANOVA and one-way ANOVA with Bonferroni post-hoc tests (α = 0.05). The investigated bulk-fill composites showed at least 80% of their maximum degree of conversion (80% DC<sub>max</sub>) up to a measuring depth of at least 4 mm. Tetric EvoCeram Bulk Fill and Bulk Ormocer achieved more than 80% DC<sub>max</sub> up to a measuring depth of 5 mm, x-tra fil up to 6 mm. The conventional nanohybrid composite Tetric EvoCeram achieved more than 80% DC<sub>max</sub> up to 3 mm. In contrast to the conventional composite, the investigated ormocer- and dimethacrylate-based bulk-fill composites can be photo-polymerized in thick layers of up to at least 4 mm with regard to their degree of C=C double bond conversion. |
| first_indexed | 2024-03-10T05:19:25Z |
| format | Article |
| id | doaj.art-1302c5712a2545f2b1a6fc91f6d8fb9b |
| institution | Directory Open Access Journal |
| issn | 1996-1944 |
| language | English |
| last_indexed | 2024-03-10T05:19:25Z |
| publishDate | 2021-11-01 |
| publisher | MDPI AG |
| record_format | Article |
| series | Materials |
| spelling | doaj.art-1302c5712a2545f2b1a6fc91f6d8fb9b2023-11-23T00:08:09ZengMDPI AGMaterials1996-19442021-11-011422675310.3390/ma14226753Depth-Related Curing Potential of Ormocer- and Dimethacrylate-Based Bulk-Fill CompositesRamona S. Oltramare0Reto Odermatt1Phoebe Burrer2Thomas Attin3Tobias T. Tauböck4Clinic of Conservative and Preventive Dentistry, Center for Dental Medicine, University of Zurich, 8032 Zurich, SwitzerlandDepartment of Pediatric Oral Health and Orthodontics, University Center for Dental Medicine Basel UZB, University of Basel, 4058 Basel, SwitzerlandClinic of Conservative and Preventive Dentistry, Center for Dental Medicine, University of Zurich, 8032 Zurich, SwitzerlandClinic of Conservative and Preventive Dentistry, Center for Dental Medicine, University of Zurich, 8032 Zurich, SwitzerlandClinic of Conservative and Preventive Dentistry, Center for Dental Medicine, University of Zurich, 8032 Zurich, SwitzerlandThe aim of this in vitro study was to investigate the degree of C=C double bond conversion of high-viscosity dimethacrylate- or ormocer-based bulk-fill composites as a function of measurement depth. Four bulk-fill composites (Tetric EvoCeram Bulk Fill, x-tra fil, SonicFill, and Bulk Ormocer) and the conventional nanohybrid composite Tetric EvoCeram were applied in standardized Class II cavities (<i>n</i> = 6 per group) and photoactivated for 20 s at 1350 mW/cm<sup>2</sup>. The degree of conversion of the composites was assessed using Fourier-transform infrared spectroscopy at seven measurement depths (0.15, 1, 2, 3, 4, 5, 6 mm). Data were analyzed using repeated measures ANOVA and one-way ANOVA with Bonferroni post-hoc tests (α = 0.05). The investigated bulk-fill composites showed at least 80% of their maximum degree of conversion (80% DC<sub>max</sub>) up to a measuring depth of at least 4 mm. Tetric EvoCeram Bulk Fill and Bulk Ormocer achieved more than 80% DC<sub>max</sub> up to a measuring depth of 5 mm, x-tra fil up to 6 mm. The conventional nanohybrid composite Tetric EvoCeram achieved more than 80% DC<sub>max</sub> up to 3 mm. In contrast to the conventional composite, the investigated ormocer- and dimethacrylate-based bulk-fill composites can be photo-polymerized in thick layers of up to at least 4 mm with regard to their degree of C=C double bond conversion.https://www.mdpi.com/1996-1944/14/22/6753bulk-fill resin compositedegree of conversionormocer-based bulk-fill compositepolymerization |
| spellingShingle | Ramona S. Oltramare Reto Odermatt Phoebe Burrer Thomas Attin Tobias T. Tauböck Depth-Related Curing Potential of Ormocer- and Dimethacrylate-Based Bulk-Fill Composites Materials bulk-fill resin composite degree of conversion ormocer-based bulk-fill composite polymerization |
| title | Depth-Related Curing Potential of Ormocer- and Dimethacrylate-Based Bulk-Fill Composites |
| title_full | Depth-Related Curing Potential of Ormocer- and Dimethacrylate-Based Bulk-Fill Composites |
| title_fullStr | Depth-Related Curing Potential of Ormocer- and Dimethacrylate-Based Bulk-Fill Composites |
| title_full_unstemmed | Depth-Related Curing Potential of Ormocer- and Dimethacrylate-Based Bulk-Fill Composites |
| title_short | Depth-Related Curing Potential of Ormocer- and Dimethacrylate-Based Bulk-Fill Composites |
| title_sort | depth related curing potential of ormocer and dimethacrylate based bulk fill composites |
| topic | bulk-fill resin composite degree of conversion ormocer-based bulk-fill composite polymerization |
| url | https://www.mdpi.com/1996-1944/14/22/6753 |
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