Post-gel polymerization shrinkage strain of four different light-activated composites polymerized with different curing modes
Journal of Baghdad College of Dentistry
View Archive Info| Field | Value | |
| Title |
Post-gel polymerization shrinkage strain of four different light-activated composites polymerized with different curing modes
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| Creator |
Al Shekhli, Ali A.
, Haitham J. |
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| Description |
Background: This study investigated the influence of different new curing modes on the post-gel polymerization shrinkage strain of different light- activated composites. Materials and methods: This study investigated the Post-Gel Polymerization Shrinkage Strain of two mm thick composite specimens after exposure to different curing modes. Parameters included six curing modes: Control (C), Pulse Delay I (PDI), Pulse Delay II (PDII), Soft-start (SS), Pulse Cure I (PCI), and Pulse Cure II (PCII) plus three experimental curing modes of higher energy density: Prolonged low-intensity pulse cure mode (PLPC), Prolonged moderate-intensity pulse cure mode (PMPC) and Rapid high-intensity continues cure mode (RHCC) for each of the four different light-activated composite materials (Tetric Ceram, Heliomolar, Herculite XRV and Degufill Mineral). Results: Statistical analysis of the data by using the one-way analysis of variance revealed that, there is statistically very highly significant difference for all the polymerization shrinkage strains with the composite type, curing mode and post-curing-time. Conclusion: Light intensity reduction and elongation of the curing time combined with pulse activation and soft start polymerization (PLPC curing mode) resulted in significantly lower and gradual post-gel polymerization shrinkage strain for all the light-activated composites being tested |
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| Publisher |
College of dentistry/ University of baghdad
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| Date |
2017-01-30
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| Type |
info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion Peer-reviewed Article |
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| Identifier |
http://jbcd.uobaghdad.edu.iq/index.php/jbcd/article/view/1536
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| Source |
Journal of Baghdad College of Dentistry; Vol 19 No 1 (2007); 38-41
2311-5270 1680-0087 |
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| Language |
en
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| Rights |
Copyright (c) 2017 Journal of Baghdad College of Dentistry
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