Influence of viscosity and polymerization mode on bond strength of dual-cure resin luting agent to dentin
Aim: To evaluate the influence of the viscosity and curing mode on the bond strength of two resin cements to dentin. Methods: Eight experimental groups were formed (n = 7) according to the dual-cure resin cements (Nexus 2 - Kerr Corp. and Variolink II - Ivoclar Vivadent), curing modes (dual-cure or...
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| Format: | Article |
| Language: | English |
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Universidade Estadual de Campinas
2015-11-01
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| Series: | Brazilian Journal of Oral Sciences |
| Subjects: | |
| Online Access: | https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641562 |
| _version_ | 1823932061187047424 |
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| author | Marina Di Francescantonio Thaiane Rodrigues Aguiar Marcelo Tavares de Oliveira Marcelo Giannini |
| author_facet | Marina Di Francescantonio Thaiane Rodrigues Aguiar Marcelo Tavares de Oliveira Marcelo Giannini |
| author_sort | Marina Di Francescantonio |
| collection | DOAJ |
| description | Aim: To evaluate the influence of the viscosity and curing mode on the bond strength of two resin cements to dentin. Methods: Eight experimental groups were formed (n = 7) according to the dual-cure resin cements (Nexus 2 - Kerr Corp. and Variolink II - Ivoclar Vivadent), curing modes (dual-cure or self-cure) and viscosities (low and high). Resin cements were applied to pre-cured composite resin discs (2 mm thick, Sinfony -3M ESPE), which were fixed to bonded dentin surfaces. The restored teeth were either light-activated (XL3000 - 3M ESPE) or allowed to self curing only. After 24 h, the teeth were both mesiodistally and buccolingually sectioned to obtain bonded beam specimens (0.8 mm2 cross-sectional area). Each specimen was tested in microtensile strength at a crosshead speed of 0.5 mm/min until failure. Results: Data (in MPa) were analyzed statistically by three-way ANOVA and Tukey’s post-hoc test (pre-set á = 0.05). No significant difference was observed between resin cements (p=0.26) and viscosities (p=0.13), however, the curing mode affected the BS within the viscosities (p=0.01). Statistically significant difference was observed for low viscosity: Nexus 2: 23.8(10.6) (dual-cure) and 16.0(5.1) (self-cure); Variolink II: 28.7(8.7) (dual-cure) and 11.9(3.0) (self-cure). Conclusions: Light activation yielded higher bond strength for the low-viscosity versions of the resin cements. |
| first_indexed | 2024-12-16T21:47:00Z |
| format | Article |
| id | doaj.art-759bfb67388c483395a919da108fd025 |
| institution | Directory Open Access Journal |
| issn | 1677-3225 |
| language | English |
| last_indexed | 2024-12-16T21:47:00Z |
| publishDate | 2015-11-01 |
| publisher | Universidade Estadual de Campinas |
| record_format | Article |
| series | Brazilian Journal of Oral Sciences |
| spelling | doaj.art-759bfb67388c483395a919da108fd0252022-12-21T22:15:05ZengUniversidade Estadual de CampinasBrazilian Journal of Oral Sciences1677-32252015-11-0111110.20396/bjos.v11i1.8641562Influence of viscosity and polymerization mode on bond strength of dual-cure resin luting agent to dentinMarina Di Francescantonio0Thaiane Rodrigues Aguiar1Marcelo Tavares de Oliveira2Marcelo Giannini3Campinas State University, Piracicaba, SPCampinas State University, Piracicaba, SPUniversity Nove de Julho, São Paulo, SPCampinas State University, Piracicaba, SPAim: To evaluate the influence of the viscosity and curing mode on the bond strength of two resin cements to dentin. Methods: Eight experimental groups were formed (n = 7) according to the dual-cure resin cements (Nexus 2 - Kerr Corp. and Variolink II - Ivoclar Vivadent), curing modes (dual-cure or self-cure) and viscosities (low and high). Resin cements were applied to pre-cured composite resin discs (2 mm thick, Sinfony -3M ESPE), which were fixed to bonded dentin surfaces. The restored teeth were either light-activated (XL3000 - 3M ESPE) or allowed to self curing only. After 24 h, the teeth were both mesiodistally and buccolingually sectioned to obtain bonded beam specimens (0.8 mm2 cross-sectional area). Each specimen was tested in microtensile strength at a crosshead speed of 0.5 mm/min until failure. Results: Data (in MPa) were analyzed statistically by three-way ANOVA and Tukey’s post-hoc test (pre-set á = 0.05). No significant difference was observed between resin cements (p=0.26) and viscosities (p=0.13), however, the curing mode affected the BS within the viscosities (p=0.01). Statistically significant difference was observed for low viscosity: Nexus 2: 23.8(10.6) (dual-cure) and 16.0(5.1) (self-cure); Variolink II: 28.7(8.7) (dual-cure) and 11.9(3.0) (self-cure). Conclusions: Light activation yielded higher bond strength for the low-viscosity versions of the resin cements.https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641562Dentin bonding agentsResin cementBond strengthDentin |
| spellingShingle | Marina Di Francescantonio Thaiane Rodrigues Aguiar Marcelo Tavares de Oliveira Marcelo Giannini Influence of viscosity and polymerization mode on bond strength of dual-cure resin luting agent to dentin Brazilian Journal of Oral Sciences Dentin bonding agents Resin cement Bond strength Dentin |
| title | Influence of viscosity and polymerization mode on bond strength of dual-cure resin luting agent to dentin |
| title_full | Influence of viscosity and polymerization mode on bond strength of dual-cure resin luting agent to dentin |
| title_fullStr | Influence of viscosity and polymerization mode on bond strength of dual-cure resin luting agent to dentin |
| title_full_unstemmed | Influence of viscosity and polymerization mode on bond strength of dual-cure resin luting agent to dentin |
| title_short | Influence of viscosity and polymerization mode on bond strength of dual-cure resin luting agent to dentin |
| title_sort | influence of viscosity and polymerization mode on bond strength of dual cure resin luting agent to dentin |
| topic | Dentin bonding agents Resin cement Bond strength Dentin |
| url | https://periodicos.sbu.unicamp.br/ojs/index.php/bjos/article/view/8641562 |
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