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Naji, M. |
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Motta, Antonella |
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Aletan, Dirar |
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Mohamed, Tarek |
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Ertürk, Emre |
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Taccardi, Nicola |
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Kononenko, Denys |
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Petrov, R. H. | Madrid |
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Alshaaer, Mazen | Brussels |
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Bih, L. |
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Casati, R. |
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Muller, Hermance |
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Kočí, Jan | Prague |
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Šuljagić, Marija |
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Kalteremidou, Kalliopi-Artemi | Brussels |
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Azam, Siraj |
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Ospanova, Alyiya |
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Blanpain, Bart |
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Ali, M. A. |
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Popa, V. |
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Rančić, M. |
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Ollier, Nadège |
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Azevedo, Nuno Monteiro |
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Landes, Michael |
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Rignanese, Gian-Marco |
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Correia, Andre
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (8/8 displayed)
- 2023Graphene as polymethylmetacrylate reinforcement material
- 2023Prototype of a standardized and controlled polishing tool for dental materials
- 2022Investigation of the effect of the same polishing protocol on the surface roughness of denture base acrylic resinscitations
- 2018Clinical performance of CAD/CAM tooth-supported ceramic restorationscitations
- 2017EVALUATION OF SURFACE ROUGHNESS OF DENTAL COMPOSITES SUBJECT TO DIFFERENT METHODS OF FINISHING AND POLISHING
- 2017Evaluation of surface roughness of dental composites subject to different methods of finish and polishing
- 2016Resin-bonded fixed dental prosthesis with a modified treatment surface in a zirconia framework: a case report
- 2016Resin-bonded fixed dental prosthesis with a modified treatment surface in a zirconia framework
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article
Investigation of the effect of the same polishing protocol on the surface roughness of denture base acrylic resins
Abstract
<p>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<sup>®</sup> 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<sub>a</sub> 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.</p>