The Effect of Gastric Acid on the Surface Properties of Different Universal Composites: A SEM Study
The aim of this study is to compare surface roughness and microhardness changes of three monochromatic (Omnichroma, Vittra Unique, and Charisma Diamond One) and three universal shade (Neo Spectra ST, G-ænial A’CHORD, and Nova Compo C) resin composites after exposure to simulated gastric acid. A tota...
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| description | The aim of this study is to compare surface roughness and microhardness changes of three monochromatic (Omnichroma, Vittra Unique, and Charisma Diamond One) and three universal shade (Neo Spectra ST, G-ænial A’CHORD, and Nova Compo C) resin composites after exposure to simulated gastric acid. A total of 144 disc-shaped specimens (24 discs of each composite resin) were prepared using plexiglass molds (R=5 mm×h=2 mm) for evaluation from each material. Specimens of each material were divided into two main groups for the evaluation of the microhardness and surface roughness and also two subgroups for 7- and 14-day exposures to simulated gastric acid. Initial microhardness and surface roughness measurements of all samples were measured before immersion (T1) followed by exposing the samples to simulated gastric acid for 7 days (T2) and 14 days (T3), and then, the microhardness and roughness measurements were repeated. Randomly selected specimens of each material for each of the time intervals (T1, T2, and T3) were evaluated with scanning electron microscopy (SEM). One-way ANOVA revealed that the surface roughness and hardness values of all tested composite resin restorative materials show no statistically significant difference for the initial (T1) value (p>0.05). Regarding the 7th day (T2) and 14th day (T3) surface roughness and microhardness value of all composites, there are statistically significant differences between the groups (p0.05). As a result of this in vitro study, increase in surface roughness and decrease in microhardness of the tested universal composite materials when exposed to simulated gastric acid were statistically significant. |
| doi_str_mv | 10.1155/2022/9217802 |
| format | Article |
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A total of 144 disc-shaped specimens (24 discs of each composite resin) were prepared using plexiglass molds (R=5 mm×h=2 mm) for evaluation from each material. Specimens of each material were divided into two main groups for the evaluation of the microhardness and surface roughness and also two subgroups for 7- and 14-day exposures to simulated gastric acid. Initial microhardness and surface roughness measurements of all samples were measured before immersion (T1) followed by exposing the samples to simulated gastric acid for 7 days (T2) and 14 days (T3), and then, the microhardness and roughness measurements were repeated. Randomly selected specimens of each material for each of the time intervals (T1, T2, and T3) were evaluated with scanning electron microscopy (SEM). One-way ANOVA revealed that the surface roughness and hardness values of all tested composite resin restorative materials show no statistically significant difference for the initial (T1) value (p>0.05). Regarding the 7th day (T2) and 14th day (T3) surface roughness and microhardness value of all composites, there are statistically significant differences between the groups (p<0.05), while there was no statistically significant difference between the surface hardness reduction percentage between the time intervals (p>0.05). As a result of this in vitro study, increase in surface roughness and decrease in microhardness of the tested universal composite materials when exposed to simulated gastric acid were statistically significant.</description><identifier>ISSN: 0161-0457</identifier><identifier>EISSN: 1932-8745</identifier><identifier>DOI: 10.1155/2022/9217802</identifier><identifier>PMID: 36636246</identifier><language>eng</language><publisher>England: Hindawi</publisher><subject>Acids ; Bisphenol A ; Composite materials ; Composite Resins ; Dental erosion ; Diamonds ; Evaluation ; Exposure ; Gastric Acid ; Gastroesophageal reflux ; Hardness ; Intervals ; Light ; Materials Testing ; Mechanical properties ; Microhardness ; Microscopy, Electron, Scanning ; Physical properties ; Polymers ; Resins ; Samples ; Scanning electron microscopy ; Simulation ; Subgroups ; Surface hardness ; Surface Properties ; Surface roughness</subject><ispartof>Scanning, 2022, Vol.2022, p.9217802-10</ispartof><rights>Copyright © 2022 Cemile Kedici Alp et al.</rights><rights>Copyright © 2022 Cemile Kedici Alp et al. This is an open access article distributed under the Creative Commons Attribution License (the “License”), which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited. Notwithstanding the ProQuest Terms and Conditions, you may use this content in accordance with the terms of the License. https://creativecommons.org/licenses/by/4.0</rights><rights>Copyright © 2022 Cemile Kedici Alp et al. 2022</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c514t-3b01e56a366dafc7085a21f2060e8f7b36b3c18636cc8e37dd0922ceba4169183</citedby><cites>FETCH-LOGICAL-c514t-3b01e56a366dafc7085a21f2060e8f7b36b3c18636cc8e37dd0922ceba4169183</cites><orcidid>0000-0002-1847-1367</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktopdf>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC9812630/pdf/$$EPDF$$P50$$Gpubmedcentral$$Hfree_for_read</linktopdf><linktohtml>$$Uhttps://www.ncbi.nlm.nih.gov/pmc/articles/PMC9812630/$$EHTML$$P50$$Gpubmedcentral$$Hfree_for_read</linktohtml><link.rule.ids>230,314,723,776,780,881,4009,27902,27903,27904,53769,53771</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/36636246$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><contributor>Ruffino, Francesco</contributor><contributor>Francesco Ruffino</contributor><creatorcontrib>Alp, Cemile Kedici</creatorcontrib><creatorcontrib>Gündogdu, Ceyda</creatorcontrib><creatorcontrib>Ahısha, Cansu Dağdelen</creatorcontrib><title>The Effect of Gastric Acid on the Surface Properties of Different Universal Composites: A SEM Study</title><title>Scanning</title><addtitle>Scanning</addtitle><description>The aim of this study is to compare surface roughness and microhardness changes of three monochromatic (Omnichroma, Vittra Unique, and Charisma Diamond One) and three universal shade (Neo Spectra ST, G-ænial A’CHORD, and Nova Compo C) resin composites after exposure to simulated gastric acid. A total of 144 disc-shaped specimens (24 discs of each composite resin) were prepared using plexiglass molds (R=5 mm×h=2 mm) for evaluation from each material. Specimens of each material were divided into two main groups for the evaluation of the microhardness and surface roughness and also two subgroups for 7- and 14-day exposures to simulated gastric acid. Initial microhardness and surface roughness measurements of all samples were measured before immersion (T1) followed by exposing the samples to simulated gastric acid for 7 days (T2) and 14 days (T3), and then, the microhardness and roughness measurements were repeated. Randomly selected specimens of each material for each of the time intervals (T1, T2, and T3) were evaluated with scanning electron microscopy (SEM). One-way ANOVA revealed that the surface roughness and hardness values of all tested composite resin restorative materials show no statistically significant difference for the initial (T1) value (p>0.05). Regarding the 7th day (T2) and 14th day (T3) surface roughness and microhardness value of all composites, there are statistically significant differences between the groups (p<0.05), while there was no statistically significant difference between the surface hardness reduction percentage between the time intervals (p>0.05). 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Study</atitle><jtitle>Scanning</jtitle><addtitle>Scanning</addtitle><date>2022</date><risdate>2022</risdate><volume>2022</volume><spage>9217802</spage><epage>10</epage><pages>9217802-10</pages><issn>0161-0457</issn><eissn>1932-8745</eissn><abstract>The aim of this study is to compare surface roughness and microhardness changes of three monochromatic (Omnichroma, Vittra Unique, and Charisma Diamond One) and three universal shade (Neo Spectra ST, G-ænial A’CHORD, and Nova Compo C) resin composites after exposure to simulated gastric acid. A total of 144 disc-shaped specimens (24 discs of each composite resin) were prepared using plexiglass molds (R=5 mm×h=2 mm) for evaluation from each material. Specimens of each material were divided into two main groups for the evaluation of the microhardness and surface roughness and also two subgroups for 7- and 14-day exposures to simulated gastric acid. Initial microhardness and surface roughness measurements of all samples were measured before immersion (T1) followed by exposing the samples to simulated gastric acid for 7 days (T2) and 14 days (T3), and then, the microhardness and roughness measurements were repeated. Randomly selected specimens of each material for each of the time intervals (T1, T2, and T3) were evaluated with scanning electron microscopy (SEM). One-way ANOVA revealed that the surface roughness and hardness values of all tested composite resin restorative materials show no statistically significant difference for the initial (T1) value (p>0.05). Regarding the 7th day (T2) and 14th day (T3) surface roughness and microhardness value of all composites, there are statistically significant differences between the groups (p<0.05), while there was no statistically significant difference between the surface hardness reduction percentage between the time intervals (p>0.05). As a result of this in vitro study, increase in surface roughness and decrease in microhardness of the tested universal composite materials when exposed to simulated gastric acid were statistically significant.</abstract><cop>England</cop><pub>Hindawi</pub><pmid>36636246</pmid><doi>10.1155/2022/9217802</doi><tpages>10</tpages><orcidid>https://orcid.org/0000-0002-1847-1367</orcidid><oa>free_for_read</oa></addata></record> |
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| subjects | Acids Bisphenol A Composite materials Composite Resins Dental erosion Diamonds Evaluation Exposure Gastric Acid Gastroesophageal reflux Hardness Intervals Light Materials Testing Mechanical properties Microhardness Microscopy, Electron, Scanning Physical properties Polymers Resins Samples Scanning electron microscopy Simulation Subgroups Surface hardness Surface Properties Surface roughness |
| title | The Effect of Gastric Acid on the Surface Properties of Different Universal Composites: A SEM Study |
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