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Base Materials’ Influence on Fracture Resistance of Molars with MOD Cavities
The aim of this study was to compare fracture resistance of teeth presenting medium-sized mesial-occlusal-distal (MOD) cavities using different base materials. Thirty-six extracted molars were immersed for 48 h in saline solution (0.1% thymol at 4 °C) and divided into six groups. In group A, the mol...
Autores principales: | , , , , , , , , |
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Formato: | Online Artículo Texto |
Lenguaje: | English |
Publicado: |
MDPI
2021
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Materias: | |
Acceso en línea: | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8471061/ https://www.ncbi.nlm.nih.gov/pubmed/34576466 http://dx.doi.org/10.3390/ma14185242 |
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author | Ciavoi, Gabriela Mărgărit, Ruxandra Todor, Liana Bodnar, Dana Dina, Magdalena Natalia Tărlungeanu, Daniela Ioana Cojocaru, Denisa Farcaşiu, Cătălina Andrei, Oana Cella |
author_facet | Ciavoi, Gabriela Mărgărit, Ruxandra Todor, Liana Bodnar, Dana Dina, Magdalena Natalia Tărlungeanu, Daniela Ioana Cojocaru, Denisa Farcaşiu, Cătălina Andrei, Oana Cella |
author_sort | Ciavoi, Gabriela |
collection | PubMed |
description | The aim of this study was to compare fracture resistance of teeth presenting medium-sized mesial-occlusal-distal (MOD) cavities using different base materials. Thirty-six extracted molars were immersed for 48 h in saline solution (0.1% thymol at 4 °C) and divided into six groups. In group A, the molars were untouched, and in group B, cavities were prepared, but not filled. In group C, we used zinc polycarboxylate cement, in group D—conventional glass ionomer cement, in group E—resin modified glass ionomer cement, and in group F—flow composite. Fracture resistance was tested using a universal loading machine (Lloyd Instruments) with a maximum force of 5 kN and a crosshead speed of 1.0 mm/min; we used NEXYGEN Data Analysis Software and ANOVA Method (p < 0.05). The smallest load that determined the sample failure was 2780 N for Group A, 865 N for Group B, 1210 N for Group C, 1340 N for Group D, 1630 N for Group E and 1742 N for Group F. The highest loads were 3050 N (A), 1040 N (B), 1430 N (C), 1500 N (D), 1790 N (E), and 3320 N (F), the mean values being 2902 ± 114 N (A), 972 ± 65 N (B), 1339 ± 84 N (C), 1415 ± 67 N (D), 1712 ± 62 N (E), and 2334 ± 662 N (F). A p = 0.000195 shows a statistically significant difference between groups C, D, E and F. For medium sized mesial-occlusal-distal (MOD) cavities, the best base material regarding fracture resistance was flow composite, followed by glass ionomer modified with resin, conventional glass ionomer cement and zinc polycarboxylate cement. It can be concluded that light-cured base materials are a better option for the analyzed use case, one of the possible reasons being their compatibility with the final restoration material, also light-cured. |
format | Online Article Text |
id | pubmed-8471061 |
institution | National Center for Biotechnology Information |
language | English |
publishDate | 2021 |
publisher | MDPI |
record_format | MEDLINE/PubMed |
spelling | pubmed-84710612021-09-27 Base Materials’ Influence on Fracture Resistance of Molars with MOD Cavities Ciavoi, Gabriela Mărgărit, Ruxandra Todor, Liana Bodnar, Dana Dina, Magdalena Natalia Tărlungeanu, Daniela Ioana Cojocaru, Denisa Farcaşiu, Cătălina Andrei, Oana Cella Materials (Basel) Article The aim of this study was to compare fracture resistance of teeth presenting medium-sized mesial-occlusal-distal (MOD) cavities using different base materials. Thirty-six extracted molars were immersed for 48 h in saline solution (0.1% thymol at 4 °C) and divided into six groups. In group A, the molars were untouched, and in group B, cavities were prepared, but not filled. In group C, we used zinc polycarboxylate cement, in group D—conventional glass ionomer cement, in group E—resin modified glass ionomer cement, and in group F—flow composite. Fracture resistance was tested using a universal loading machine (Lloyd Instruments) with a maximum force of 5 kN and a crosshead speed of 1.0 mm/min; we used NEXYGEN Data Analysis Software and ANOVA Method (p < 0.05). The smallest load that determined the sample failure was 2780 N for Group A, 865 N for Group B, 1210 N for Group C, 1340 N for Group D, 1630 N for Group E and 1742 N for Group F. The highest loads were 3050 N (A), 1040 N (B), 1430 N (C), 1500 N (D), 1790 N (E), and 3320 N (F), the mean values being 2902 ± 114 N (A), 972 ± 65 N (B), 1339 ± 84 N (C), 1415 ± 67 N (D), 1712 ± 62 N (E), and 2334 ± 662 N (F). A p = 0.000195 shows a statistically significant difference between groups C, D, E and F. For medium sized mesial-occlusal-distal (MOD) cavities, the best base material regarding fracture resistance was flow composite, followed by glass ionomer modified with resin, conventional glass ionomer cement and zinc polycarboxylate cement. It can be concluded that light-cured base materials are a better option for the analyzed use case, one of the possible reasons being their compatibility with the final restoration material, also light-cured. MDPI 2021-09-12 /pmc/articles/PMC8471061/ /pubmed/34576466 http://dx.doi.org/10.3390/ma14185242 Text en © 2021 by the authors. https://creativecommons.org/licenses/by/4.0/Licensee MDPI, Basel, Switzerland. This article is an open access article distributed under the terms and conditions of the Creative Commons Attribution (CC BY) license (https://creativecommons.org/licenses/by/4.0/). |
spellingShingle | Article Ciavoi, Gabriela Mărgărit, Ruxandra Todor, Liana Bodnar, Dana Dina, Magdalena Natalia Tărlungeanu, Daniela Ioana Cojocaru, Denisa Farcaşiu, Cătălina Andrei, Oana Cella Base Materials’ Influence on Fracture Resistance of Molars with MOD Cavities |
title | Base Materials’ Influence on Fracture Resistance of Molars with MOD Cavities |
title_full | Base Materials’ Influence on Fracture Resistance of Molars with MOD Cavities |
title_fullStr | Base Materials’ Influence on Fracture Resistance of Molars with MOD Cavities |
title_full_unstemmed | Base Materials’ Influence on Fracture Resistance of Molars with MOD Cavities |
title_short | Base Materials’ Influence on Fracture Resistance of Molars with MOD Cavities |
title_sort | base materials’ influence on fracture resistance of molars with mod cavities |
topic | Article |
url | https://www.ncbi.nlm.nih.gov/pmc/articles/PMC8471061/ https://www.ncbi.nlm.nih.gov/pubmed/34576466 http://dx.doi.org/10.3390/ma14185242 |
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