Publication
Microscopic inspection of the adhesive interface of composite onlays after cementation on low loading: an in vitro study
| dc.contributor.author | Magalhães, Tiago | |
| dc.contributor.author | Fidalgo-Pereira, Rita | |
| dc.contributor.author | Torres, Orlanda | |
| dc.contributor.author | Carvalho, Óscar | |
| dc.contributor.author | Silva, Filipe S. | |
| dc.contributor.author | Henriques, Bruno | |
| dc.contributor.author | Özcan, Mutlu | |
| dc.contributor.author | Souza, Júlio C. M. | |
| dc.date.accessioned | 2023-04-19T15:26:24Z | |
| dc.date.available | 2023-04-19T15:26:24Z | |
| dc.date.issued | 2023-03-07 | |
| dc.description.abstract | Purpose: This study aimed to assess the layer thickness and microstructure of traditional resin-matrix cements and flowable resin-matrix composites at dentin and enamel to composite onlay interfaces after cementation on low loading magnitude. Materials and Methods: Twenty teeth were prepared and conditioned with an adhesive system for restoration with resin-matrix composite onlays manufactured by CAD-CAM. On cementation, tooth-to-onlay assemblies were distributed into four groups, including two traditional resin-matrix cements (groups M and B), one flowable resin-matrix composite (group G), and one thermally induced flowable composite (group V). After the cementation procedure, assemblies were cross-sectioned for inspection by optical microscopy at different magnification up to ×1000. Results: The layer thickness of resin-matrix cementation showed the highest mean values at around 405 µm for a traditional resin-matrix cement (group B). The thermally induced flowable resin-matrix composites showed the lowest layer thickness values. The resin-matrix layer thickness revealed statistical differences between traditional resin cement (groups M and B) and flowable resin-matrix composites (groups V and G) (p < 0.05). However, the groups of flowable resin-matrix composites did not reveal statistical differences (p < 0.05). The thickness of the adhesive system layer at around 7 µm and 12 µm was lower at the interfaces with flowable resin-matrix composites when compared to the adhesive layer at resin-matrix cements, which ranged from 12 µm up to 40 µm. Conclusions: The flowable resin-matrix composites showed adequate flowing even though the loading on cementation was performed at low magnitude. Nevertheless, significant variation in thickness of the cementation layer was noticed for flowable resin-matrix composites and traditional resin-matrix cements that can occur in chair-side procedures due to the clinical sensitivity and differences in rheological properties of the materials. | pt_PT |
| dc.description.version | info:eu-repo/semantics/publishedVersion | pt_PT |
| dc.identifier.doi | 10.3390/jfb14030148 | pt_PT |
| dc.identifier.eid | 85151166611 | |
| dc.identifier.issn | 2079-4983 | |
| dc.identifier.pmc | PMC10058625 | |
| dc.identifier.pmid | 36976072 | |
| dc.identifier.uri | http://hdl.handle.net/10400.14/40896 | |
| dc.identifier.wos | 000957920800001 | |
| dc.language.iso | eng | pt_PT |
| dc.peerreviewed | yes | pt_PT |
| dc.rights.uri | http://creativecommons.org/licenses/by/4.0/ | pt_PT |
| dc.subject | Cementation | pt_PT |
| dc.subject | Dentin | pt_PT |
| dc.subject | Onlay | pt_PT |
| dc.subject | Resin cement | pt_PT |
| dc.subject | Resin composite | pt_PT |
| dc.title | Microscopic inspection of the adhesive interface of composite onlays after cementation on low loading: an in vitro study | pt_PT |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.citation.issue | 3 | pt_PT |
| oaire.citation.title | Journal of Functional Biomaterials | pt_PT |
| oaire.citation.volume | 14 | pt_PT |
| rcaap.rights | openAccess | pt_PT |
| rcaap.type | article | pt_PT |