Publication
Investigation of the effect of the same polishing protocol on the surface roughness of denture base acrylic resins
| dc.contributor.author | Quezada, Margarida Martins | |
| dc.contributor.author | Salgado, Helena | |
| dc.contributor.author | Correia, André | |
| dc.contributor.author | Fernandes, Carlos | |
| dc.contributor.author | Fonseca, Patrícia | |
| dc.date.accessioned | 2022-08-31T10:41:35Z | |
| dc.date.available | 2022-08-31T10:41:35Z | |
| dc.date.issued | 2022-08-14 | |
| dc.description.abstract | This investigation aims to determine the effect of the same polishing protocol on the surface roughness (Ra) of different resins obtained by different processing techniques. Acrylic resins obtained by CAD/CAM technology overcame the disadvantages identified in conventional materials. A total of thirty samples (six of each resin): self-cured, heat-polymerized, injection molded, CAD/CAM 3D-printed and CAD/CAM milled were prepared. JOTA ® Kit 1877 DENTUR POLISH was used to polish the samples by two techniques: manual and mechanized, with a prototype for guided polishing exclusively developed for this investigation. The Ra was measured by a profilometer. The values were analyzed using ANOVA, Games-Howell post-hoc test and One-sample t-test, with p < 0.05. Manual polishing produces lower values of Ra compared to mechanized polishing, except for injected molded resins ( p = 0.713). Manual polishing reveals significant differences between the resin pairs milling/3D-printing ( p = 0.012) and thermopolymerizable/milling ( p = 0.024). In the mechanized technique only, significant differences regarding the R a values were found between the self-cured/3D-printed ( p = 0.004) and self-cured/thermopolymerizable pair resins ( p = 0.004). Differences in surface roughness values can be attributed to the inherent characteristics of the resin and the respective processing techniques. | pt_PT |
| dc.description.version | info:eu-repo/semantics/publishedVersion | pt_PT |
| dc.identifier.doi | 10.3390/biomedicines10081971 | pt_PT |
| dc.identifier.eid | 85137357709 | |
| dc.identifier.issn | 2227-9059 | |
| dc.identifier.pmc | PMC9405739 | |
| dc.identifier.pmid | 36009518 | |
| dc.identifier.uri | http://hdl.handle.net/10400.14/38633 | |
| dc.identifier.wos | 000846141600001 | |
| 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 | Polymethyl methacrylate | pt_PT |
| dc.subject | CAD-CAM | pt_PT |
| dc.subject | Acrylic resins | pt_PT |
| dc.subject | Prosthodontics | pt_PT |
| dc.subject | Surface properties | pt_PT |
| dc.title | Investigation of the effect of the same polishing protocol on the surface roughness of denture base acrylic resins | pt_PT |
| dc.type | journal article | |
| dspace.entity.type | Publication | |
| oaire.citation.issue | 8 | pt_PT |
| oaire.citation.title | Biomedicines | pt_PT |
| oaire.citation.volume | 10 | pt_PT |
| rcaap.rights | openAccess | pt_PT |
| rcaap.type | article | pt_PT |