Pre-heating effects on extrusion force, stickiness and packability of resin-based composite
To measure temperature effects on stickiness and packability of representative resin-based composites and the effect of pre-heating time on pre-cure properties of Viscalor, including extrusion force. Five resin-based composites (RBC) and an additional RBC, Viscalor, used with a Caps Warmer (VOCO, Ge...
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| Veröffentlicht in: | Dental materials 2019-11, Vol.35 (11), p.1594-1602 |
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| creator | Yang, Jiawei Silikas, Nikolaos Watts, David C. |
| description | To measure temperature effects on stickiness and packability of representative resin-based composites and the effect of pre-heating time on pre-cure properties of Viscalor, including extrusion force.
Five resin-based composites (RBC) and an additional RBC, Viscalor, used with a Caps Warmer (VOCO, Germany) were studied. The extrusion force (N) and extruded mass (g) were measured from Viscalor compules heated in T3 mode for 30s (T3-30s) and 3min (T3-3min). For stickiness and packability measurements, RBCs were packed into a brass cylindrical cavity controlled at 22 and 37°C. A flat-ended probe was lowered into the RBC pastes at constant speed. Stickiness: Fmax (N) and Ws (N mm), and packability: Fp (N), were measured. Viscalor was LED photo-cured at 1200mW/cm2 for 40s. The degrees of conversion at 5min and 24h post cure (DC5min and DC24h) of Viscalor (no heat, T3-30s and T3-3min) were measured by ATR-FTIR. Data were analysed by one-way ANOVA, independent t-test and Tukey post-hoc tests (p |
| doi_str_mv | 10.1016/j.dental.2019.08.101 |
| format | Article |
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Five resin-based composites (RBC) and an additional RBC, Viscalor, used with a Caps Warmer (VOCO, Germany) were studied. The extrusion force (N) and extruded mass (g) were measured from Viscalor compules heated in T3 mode for 30s (T3-30s) and 3min (T3-3min). For stickiness and packability measurements, RBCs were packed into a brass cylindrical cavity controlled at 22 and 37°C. A flat-ended probe was lowered into the RBC pastes at constant speed. Stickiness: Fmax (N) and Ws (N mm), and packability: Fp (N), were measured. Viscalor was LED photo-cured at 1200mW/cm2 for 40s. The degrees of conversion at 5min and 24h post cure (DC5min and DC24h) of Viscalor (no heat, T3-30s and T3-3min) were measured by ATR-FTIR. Data were analysed by one-way ANOVA, independent t-test and Tukey post-hoc tests (p<0.05).
The maximum temperature of the Caps Warmer, in T3 mode, reached 68°C in 20min. Viscalor temperatures of 34.5°C and 60.6°C were recorded after 30s and 3min pre-heating, respectively. Pre-heating significantly reduced extrusion force and increased extruded mass, especially after 3min. RBCs varied in Fmax, Ws and Fp (p<0.05). Temperature also affected Fmax (p=0.000), Ws (p=0.002) and Fp (p=0.000). Pre-heating Viscalor for either 30s or 3min did not increase the post-cure DC at either 5min or 24h, relative to no pre-heating (p>0.05).
The composites varied to an extent in stickiness and packability but the overall magnitudes remained within a clinically acceptable range. Pre-heating was beneficial in placement of Viscalor and caused no adverse effects through premature polymerization.</description><identifier>ISSN: 0109-5641</identifier><identifier>EISSN: 1879-0097</identifier><identifier>DOI: 10.1016/j.dental.2019.08.101</identifier><identifier>PMID: 31477247</identifier><language>eng</language><publisher>England: Elsevier Inc</publisher><subject>Composite Resins ; Degree of conversion ; Dental Materials ; Dentistry ; Extrusion ; Extrusion force ; Handling properties ; Heating ; High temperature effects ; Materials Testing ; Mechanical Phenomena ; Pastes ; Polymer matrix composites ; Polymerization ; Preheating ; Resin composite ; Resins ; Stickiness ; Temperature effects ; Variance analysis</subject><ispartof>Dental materials, 2019-11, Vol.35 (11), p.1594-1602</ispartof><rights>2019 The Academy of Dental Materials</rights><rights>Copyright © 2019 The Academy of Dental Materials. Published by Elsevier Inc. All rights reserved.</rights><rights>Copyright Elsevier BV Nov 2019</rights><lds50>peer_reviewed</lds50><oa>free_for_read</oa><woscitedreferencessubscribed>false</woscitedreferencessubscribed><citedby>FETCH-LOGICAL-c502t-3cd27d27403f769d520ba7de8a37c62c5fc309a91c88454c37a01cea4b1f5ff23</citedby><cites>FETCH-LOGICAL-c502t-3cd27d27403f769d520ba7de8a37c62c5fc309a91c88454c37a01cea4b1f5ff23</cites><orcidid>0000-0002-9105-2775</orcidid></display><links><openurl>$$Topenurl_article</openurl><openurlfulltext>$$Topenurlfull_article</openurlfulltext><thumbnail>$$Tsyndetics_thumb_exl</thumbnail><linktohtml>$$Uhttps://dx.doi.org/10.1016/j.dental.2019.08.101$$EHTML$$P50$$Gelsevier$$H</linktohtml><link.rule.ids>314,780,784,3550,27924,27925,45995</link.rule.ids><backlink>$$Uhttps://www.ncbi.nlm.nih.gov/pubmed/31477247$$D View this record in MEDLINE/PubMed$$Hfree_for_read</backlink></links><search><creatorcontrib>Yang, Jiawei</creatorcontrib><creatorcontrib>Silikas, Nikolaos</creatorcontrib><creatorcontrib>Watts, David C.</creatorcontrib><title>Pre-heating effects on extrusion force, stickiness and packability of resin-based composite</title><title>Dental materials</title><addtitle>Dent Mater</addtitle><description>To measure temperature effects on stickiness and packability of representative resin-based composites and the effect of pre-heating time on pre-cure properties of Viscalor, including extrusion force.
Five resin-based composites (RBC) and an additional RBC, Viscalor, used with a Caps Warmer (VOCO, Germany) were studied. The extrusion force (N) and extruded mass (g) were measured from Viscalor compules heated in T3 mode for 30s (T3-30s) and 3min (T3-3min). For stickiness and packability measurements, RBCs were packed into a brass cylindrical cavity controlled at 22 and 37°C. A flat-ended probe was lowered into the RBC pastes at constant speed. Stickiness: Fmax (N) and Ws (N mm), and packability: Fp (N), were measured. Viscalor was LED photo-cured at 1200mW/cm2 for 40s. The degrees of conversion at 5min and 24h post cure (DC5min and DC24h) of Viscalor (no heat, T3-30s and T3-3min) were measured by ATR-FTIR. Data were analysed by one-way ANOVA, independent t-test and Tukey post-hoc tests (p<0.05).
The maximum temperature of the Caps Warmer, in T3 mode, reached 68°C in 20min. Viscalor temperatures of 34.5°C and 60.6°C were recorded after 30s and 3min pre-heating, respectively. Pre-heating significantly reduced extrusion force and increased extruded mass, especially after 3min. RBCs varied in Fmax, Ws and Fp (p<0.05). Temperature also affected Fmax (p=0.000), Ws (p=0.002) and Fp (p=0.000). Pre-heating Viscalor for either 30s or 3min did not increase the post-cure DC at either 5min or 24h, relative to no pre-heating (p>0.05).
The composites varied to an extent in stickiness and packability but the overall magnitudes remained within a clinically acceptable range. Pre-heating was beneficial in placement of Viscalor and caused no adverse effects through premature polymerization.</description><subject>Composite Resins</subject><subject>Degree of conversion</subject><subject>Dental Materials</subject><subject>Dentistry</subject><subject>Extrusion</subject><subject>Extrusion force</subject><subject>Handling properties</subject><subject>Heating</subject><subject>High temperature effects</subject><subject>Materials Testing</subject><subject>Mechanical Phenomena</subject><subject>Pastes</subject><subject>Polymer matrix composites</subject><subject>Polymerization</subject><subject>Preheating</subject><subject>Resin composite</subject><subject>Resins</subject><subject>Stickiness</subject><subject>Temperature effects</subject><subject>Variance analysis</subject><issn>0109-5641</issn><issn>1879-0097</issn><fulltext>true</fulltext><rsrctype>article</rsrctype><creationdate>2019</creationdate><recordtype>article</recordtype><sourceid>EIF</sourceid><recordid>eNp9kE1rFTEUhoNY7G31H4gE3LjoXE8ymclkI5TiFxTaha5chExyormdm1yTjLT_3hludeFCCJxweM6bnIeQlwy2DFj_drd1GKuZthyY2sKwdp-QDRukagCUfEo2wEA1XS_YKTkrZQcAgiv2jJy2TEjJhdyQb7cZmx9oaojfKXqPthaaIsX7mucSlptP2eIFLTXYuxCxFGqiowdj78wYplAfaPI0YwmxGU1BR23aH1IJFZ-TE2-mgi8e6zn5-uH9l6tPzfXNx89Xl9eN7YDXprWOy-UIaL3sles4jEY6HEwrbc9t520Lyihmh0F0wrbSALNoxMh85z1vz8mbY-4hp58zlqr3oVicJhMxzUVzPohld94PC_r6H3SX5hyX32nesl5KwdQaKI6UzamUjF4fctib_KAZ6FW-3umjfL3K1zCs3WXs1WP4PO7R_R36Y3sB3h0BXGz8Cph1sQGjRRfyIl67FP7_wm_u_ZdX</recordid><startdate>201911</startdate><enddate>201911</enddate><creator>Yang, Jiawei</creator><creator>Silikas, Nikolaos</creator><creator>Watts, David C.</creator><general>Elsevier Inc</general><general>Elsevier BV</general><scope>CGR</scope><scope>CUY</scope><scope>CVF</scope><scope>ECM</scope><scope>EIF</scope><scope>NPM</scope><scope>AAYXX</scope><scope>CITATION</scope><scope>7QF</scope><scope>7QO</scope><scope>7QP</scope><scope>7QQ</scope><scope>7SC</scope><scope>7SE</scope><scope>7SP</scope><scope>7SR</scope><scope>7TA</scope><scope>7TB</scope><scope>7U5</scope><scope>8BQ</scope><scope>8FD</scope><scope>F28</scope><scope>FR3</scope><scope>H8D</scope><scope>H8G</scope><scope>JG9</scope><scope>JQ2</scope><scope>K9.</scope><scope>KR7</scope><scope>L7M</scope><scope>L~C</scope><scope>L~D</scope><scope>P64</scope><scope>7X8</scope><orcidid>https://orcid.org/0000-0002-9105-2775</orcidid></search><sort><creationdate>201911</creationdate><title>Pre-heating effects on extrusion force, stickiness and packability of resin-based composite</title><author>Yang, Jiawei ; Silikas, Nikolaos ; Watts, David C.</author></sort><facets><frbrtype>5</frbrtype><frbrgroupid>cdi_FETCH-LOGICAL-c502t-3cd27d27403f769d520ba7de8a37c62c5fc309a91c88454c37a01cea4b1f5ff23</frbrgroupid><rsrctype>articles</rsrctype><prefilter>articles</prefilter><language>eng</language><creationdate>2019</creationdate><topic>Composite Resins</topic><topic>Degree of conversion</topic><topic>Dental Materials</topic><topic>Dentistry</topic><topic>Extrusion</topic><topic>Extrusion force</topic><topic>Handling properties</topic><topic>Heating</topic><topic>High temperature effects</topic><topic>Materials Testing</topic><topic>Mechanical Phenomena</topic><topic>Pastes</topic><topic>Polymer matrix composites</topic><topic>Polymerization</topic><topic>Preheating</topic><topic>Resin composite</topic><topic>Resins</topic><topic>Stickiness</topic><topic>Temperature effects</topic><topic>Variance analysis</topic><toplevel>peer_reviewed</toplevel><toplevel>online_resources</toplevel><creatorcontrib>Yang, Jiawei</creatorcontrib><creatorcontrib>Silikas, Nikolaos</creatorcontrib><creatorcontrib>Watts, David C.</creatorcontrib><collection>Medline</collection><collection>MEDLINE</collection><collection>MEDLINE (Ovid)</collection><collection>MEDLINE</collection><collection>MEDLINE</collection><collection>PubMed</collection><collection>CrossRef</collection><collection>Aluminium Industry Abstracts</collection><collection>Biotechnology Research Abstracts</collection><collection>Calcium & Calcified Tissue Abstracts</collection><collection>Ceramic Abstracts</collection><collection>Computer and Information Systems Abstracts</collection><collection>Corrosion Abstracts</collection><collection>Electronics & Communications Abstracts</collection><collection>Engineered Materials Abstracts</collection><collection>Materials Business File</collection><collection>Mechanical & Transportation Engineering Abstracts</collection><collection>Solid State and Superconductivity Abstracts</collection><collection>METADEX</collection><collection>Technology Research Database</collection><collection>ANTE: Abstracts in New Technology & Engineering</collection><collection>Engineering Research Database</collection><collection>Aerospace Database</collection><collection>Copper Technical Reference Library</collection><collection>Materials Research Database</collection><collection>ProQuest Computer Science Collection</collection><collection>ProQuest Health & Medical Complete (Alumni)</collection><collection>Civil Engineering Abstracts</collection><collection>Advanced Technologies Database with Aerospace</collection><collection>Computer and Information Systems Abstracts Academic</collection><collection>Computer and Information Systems Abstracts Professional</collection><collection>Biotechnology and BioEngineering Abstracts</collection><collection>MEDLINE - Academic</collection><jtitle>Dental materials</jtitle></facets><delivery><delcategory>Remote Search Resource</delcategory><fulltext>fulltext</fulltext></delivery><addata><au>Yang, Jiawei</au><au>Silikas, Nikolaos</au><au>Watts, David C.</au><format>journal</format><genre>article</genre><ristype>JOUR</ristype><atitle>Pre-heating effects on extrusion force, stickiness and packability of resin-based composite</atitle><jtitle>Dental materials</jtitle><addtitle>Dent Mater</addtitle><date>2019-11</date><risdate>2019</risdate><volume>35</volume><issue>11</issue><spage>1594</spage><epage>1602</epage><pages>1594-1602</pages><issn>0109-5641</issn><eissn>1879-0097</eissn><abstract>To measure temperature effects on stickiness and packability of representative resin-based composites and the effect of pre-heating time on pre-cure properties of Viscalor, including extrusion force.
Five resin-based composites (RBC) and an additional RBC, Viscalor, used with a Caps Warmer (VOCO, Germany) were studied. The extrusion force (N) and extruded mass (g) were measured from Viscalor compules heated in T3 mode for 30s (T3-30s) and 3min (T3-3min). For stickiness and packability measurements, RBCs were packed into a brass cylindrical cavity controlled at 22 and 37°C. A flat-ended probe was lowered into the RBC pastes at constant speed. Stickiness: Fmax (N) and Ws (N mm), and packability: Fp (N), were measured. Viscalor was LED photo-cured at 1200mW/cm2 for 40s. The degrees of conversion at 5min and 24h post cure (DC5min and DC24h) of Viscalor (no heat, T3-30s and T3-3min) were measured by ATR-FTIR. Data were analysed by one-way ANOVA, independent t-test and Tukey post-hoc tests (p<0.05).
The maximum temperature of the Caps Warmer, in T3 mode, reached 68°C in 20min. Viscalor temperatures of 34.5°C and 60.6°C were recorded after 30s and 3min pre-heating, respectively. Pre-heating significantly reduced extrusion force and increased extruded mass, especially after 3min. RBCs varied in Fmax, Ws and Fp (p<0.05). Temperature also affected Fmax (p=0.000), Ws (p=0.002) and Fp (p=0.000). Pre-heating Viscalor for either 30s or 3min did not increase the post-cure DC at either 5min or 24h, relative to no pre-heating (p>0.05).
The composites varied to an extent in stickiness and packability but the overall magnitudes remained within a clinically acceptable range. Pre-heating was beneficial in placement of Viscalor and caused no adverse effects through premature polymerization.</abstract><cop>England</cop><pub>Elsevier Inc</pub><pmid>31477247</pmid><doi>10.1016/j.dental.2019.08.101</doi><tpages>9</tpages><orcidid>https://orcid.org/0000-0002-9105-2775</orcidid><oa>free_for_read</oa></addata></record> |
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| ispartof | Dental materials, 2019-11, Vol.35 (11), p.1594-1602 |
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| source | MEDLINE; Elsevier ScienceDirect Journals Complete |
| subjects | Composite Resins Degree of conversion Dental Materials Dentistry Extrusion Extrusion force Handling properties Heating High temperature effects Materials Testing Mechanical Phenomena Pastes Polymer matrix composites Polymerization Preheating Resin composite Resins Stickiness Temperature effects Variance analysis |
| title | Pre-heating effects on extrusion force, stickiness and packability of resin-based composite |
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