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Article: Effect of Heat Treatment on the Physical Properties of Provisional Crowns during Polymerization: An in Vitro Study
Title | Effect of Heat Treatment on the Physical Properties of Provisional Crowns during Polymerization: An in Vitro Study |
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Authors | |
Keywords | Color stability Composite Flexural strength Heat treatment Marginal discrepancy Methacrylate resin Provisional crown Surface topography |
Issue Date | 2015 |
Publisher | MDPIAG. The Journal's web site is located at http://www.mdpi.com/journal/materials/ |
Citation | Materials, 2015, v. 8 n. 4, p. 1766-1777 How to Cite? |
Abstract | Abstract: This study concerned the effect of heat treatment during setting on the physical properties of four resin-based provisional restorative materials: Duralay (polymethyl methacrylate), Trim II (polyethyl methacrylate), Luxatemp (bis-acrylic composite), and Protemp 4 (bis-acrylic composite). Specimens were prepared at 23, 37, or 60 °C for evaluation of flexural strength, surface roughness, color change and marginal discrepancy. Flexural strength was determined by a three-point bending test. Surface profile was studied using atomic force microscopy. Color change was evaluated by comparing the color of the materials before and after placement in coffee. A travelling microscope helped prepare standardized crowns for assessment of marginal discrepancy. Flexural strength of all tested materials cured at 23 °C or 37 °C did not significantly change. The surface roughness and marginal discrepancy of the materials increased at 60 °C curing temperature. Marginal discrepancies, color stability, and other physical properties of materials cured at 23 °C or 37 °C did not significantly change. Flexural strength of certain provisional materials cured at 60 °C increased, but there was also an increase in surface roughness and marginal discrepancy. |
Persistent Identifier | http://hdl.handle.net/10722/215046 |
ISSN | 2023 Impact Factor: 3.1 2023 SCImago Journal Rankings: 0.565 |
PubMed Central ID | |
ISI Accession Number ID |
DC Field | Value | Language |
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dc.contributor.author | Mei, L | - |
dc.contributor.author | So, SYC | - |
dc.contributor.author | Li, H | - |
dc.contributor.author | Chu, CH | - |
dc.date.accessioned | 2015-08-21T12:20:55Z | - |
dc.date.available | 2015-08-21T12:20:55Z | - |
dc.date.issued | 2015 | - |
dc.identifier.citation | Materials, 2015, v. 8 n. 4, p. 1766-1777 | - |
dc.identifier.issn | 1996-1944 | - |
dc.identifier.uri | http://hdl.handle.net/10722/215046 | - |
dc.description.abstract | Abstract: This study concerned the effect of heat treatment during setting on the physical properties of four resin-based provisional restorative materials: Duralay (polymethyl methacrylate), Trim II (polyethyl methacrylate), Luxatemp (bis-acrylic composite), and Protemp 4 (bis-acrylic composite). Specimens were prepared at 23, 37, or 60 °C for evaluation of flexural strength, surface roughness, color change and marginal discrepancy. Flexural strength was determined by a three-point bending test. Surface profile was studied using atomic force microscopy. Color change was evaluated by comparing the color of the materials before and after placement in coffee. A travelling microscope helped prepare standardized crowns for assessment of marginal discrepancy. Flexural strength of all tested materials cured at 23 °C or 37 °C did not significantly change. The surface roughness and marginal discrepancy of the materials increased at 60 °C curing temperature. Marginal discrepancies, color stability, and other physical properties of materials cured at 23 °C or 37 °C did not significantly change. Flexural strength of certain provisional materials cured at 60 °C increased, but there was also an increase in surface roughness and marginal discrepancy. | - |
dc.language | eng | - |
dc.publisher | MDPIAG. The Journal's web site is located at http://www.mdpi.com/journal/materials/ | - |
dc.relation.ispartof | Materials | - |
dc.rights | This work is licensed under a Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International License. | - |
dc.subject | Color stability | - |
dc.subject | Composite | - |
dc.subject | Flexural strength | - |
dc.subject | Heat treatment | - |
dc.subject | Marginal discrepancy | - |
dc.subject | Methacrylate resin | - |
dc.subject | Provisional crown | - |
dc.subject | Surface topography | - |
dc.title | Effect of Heat Treatment on the Physical Properties of Provisional Crowns during Polymerization: An in Vitro Study | - |
dc.type | Article | - |
dc.identifier.email | Mei, L: mei1123@hku.hk | - |
dc.identifier.email | Chu, CH: chchu@hku.hk | - |
dc.identifier.authority | Mei, L=rp01840 | - |
dc.identifier.authority | Chu, CH=rp00022 | - |
dc.description.nature | published_or_final_version | - |
dc.identifier.doi | 10.3390/ma8041766 | - |
dc.identifier.pmid | 28788031 | - |
dc.identifier.pmcid | PMC5507018 | - |
dc.identifier.scopus | eid_2-s2.0-84930649077 | - |
dc.identifier.hkuros | 247664 | - |
dc.identifier.volume | 8 | - |
dc.identifier.issue | 4 | - |
dc.identifier.spage | 1766 | - |
dc.identifier.epage | 1777 | - |
dc.identifier.eissn | 1996-1944 | - |
dc.identifier.isi | WOS:000354092100028 | - |
dc.publisher.place | Switzerland | - |
dc.identifier.issnl | 1996-1944 | - |