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A Novel Polishing Paste (Mollusk Shells) for Poly (Methylmethacrylate)

OBJECTIVE: The aim of this study was to evaluate the effectiveness of a mollusk shells polishing paste (Donax obesulus) on the surface roughness of acrylic resin poly (methylmethacrylate) (PMMA). METHODS: This study was an in vitro experimental design. A sample size of 72 was divided into 4 groups o...

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Autores principales: Guerra, Nicole, Meneses, Evelin, Caballero-García, Stefany, Mayta-Tovalino, Frank
Formato: Online Artículo Texto
Lenguaje:English
Publicado: Hindawi 2021
Materias:
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8272669/
https://www.ncbi.nlm.nih.gov/pubmed/34306082
http://dx.doi.org/10.1155/2021/5511797
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author Guerra, Nicole
Meneses, Evelin
Caballero-García, Stefany
Mayta-Tovalino, Frank
author_facet Guerra, Nicole
Meneses, Evelin
Caballero-García, Stefany
Mayta-Tovalino, Frank
author_sort Guerra, Nicole
collection PubMed
description OBJECTIVE: The aim of this study was to evaluate the effectiveness of a mollusk shells polishing paste (Donax obesulus) on the surface roughness of acrylic resin poly (methylmethacrylate) (PMMA). METHODS: This study was an in vitro experimental design. A sample size of 72 was divided into 4 groups of n = 18 each. PMMA specimens were prepared and polished with the evaluated pastes using mollusk shells (experimental paste) and pumice stone. Surface roughness (μm) was measured using a profilometer after polishing the PMMA samples. The paired Wilcoxon test was used to evaluate the roughness values at 24 and 48 hours. Then, the Mann–Whitney U test was used to identify the differences between the effects of the two groups evaluated with a significance level of α = 0.05. RESULTS: The roughness difference between the pastes under study was compared, and mean values of 0.50 ± 0.07 μm (mollusk shell paste group) and 0.45 ± 0.12 μm (pumice group) were obtained. No statistically significant differences were found between the experimental paste and pumice stone paste (p=0.309). The specimens polished with pumice stone paste showed higher roughness values, while those polished with the experimental paste exhibited the lowest values. Conclusion. In summary, mollusk shells polishing paste had a decrease in roughness values compared to pumice, although these differences were not statistically significant.
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spelling pubmed-82726692021-07-22 A Novel Polishing Paste (Mollusk Shells) for Poly (Methylmethacrylate) Guerra, Nicole Meneses, Evelin Caballero-García, Stefany Mayta-Tovalino, Frank Int J Dent Research Article OBJECTIVE: The aim of this study was to evaluate the effectiveness of a mollusk shells polishing paste (Donax obesulus) on the surface roughness of acrylic resin poly (methylmethacrylate) (PMMA). METHODS: This study was an in vitro experimental design. A sample size of 72 was divided into 4 groups of n = 18 each. PMMA specimens were prepared and polished with the evaluated pastes using mollusk shells (experimental paste) and pumice stone. Surface roughness (μm) was measured using a profilometer after polishing the PMMA samples. The paired Wilcoxon test was used to evaluate the roughness values at 24 and 48 hours. Then, the Mann–Whitney U test was used to identify the differences between the effects of the two groups evaluated with a significance level of α = 0.05. RESULTS: The roughness difference between the pastes under study was compared, and mean values of 0.50 ± 0.07 μm (mollusk shell paste group) and 0.45 ± 0.12 μm (pumice group) were obtained. No statistically significant differences were found between the experimental paste and pumice stone paste (p=0.309). The specimens polished with pumice stone paste showed higher roughness values, while those polished with the experimental paste exhibited the lowest values. Conclusion. In summary, mollusk shells polishing paste had a decrease in roughness values compared to pumice, although these differences were not statistically significant. Hindawi 2021-07-03 /pmc/articles/PMC8272669/ /pubmed/34306082 http://dx.doi.org/10.1155/2021/5511797 Text en Copyright © 2021 Nicole Guerra et al. https://creativecommons.org/licenses/by/4.0/This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.
spellingShingle Research Article
Guerra, Nicole
Meneses, Evelin
Caballero-García, Stefany
Mayta-Tovalino, Frank
A Novel Polishing Paste (Mollusk Shells) for Poly (Methylmethacrylate)
title A Novel Polishing Paste (Mollusk Shells) for Poly (Methylmethacrylate)
title_full A Novel Polishing Paste (Mollusk Shells) for Poly (Methylmethacrylate)
title_fullStr A Novel Polishing Paste (Mollusk Shells) for Poly (Methylmethacrylate)
title_full_unstemmed A Novel Polishing Paste (Mollusk Shells) for Poly (Methylmethacrylate)
title_short A Novel Polishing Paste (Mollusk Shells) for Poly (Methylmethacrylate)
title_sort novel polishing paste (mollusk shells) for poly (methylmethacrylate)
topic Research Article
url https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8272669/
https://www.ncbi.nlm.nih.gov/pubmed/34306082
http://dx.doi.org/10.1155/2021/5511797
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