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The Effect of LED Light on Depth of Cure and Microhardness of Three Types of Bulkfill Composite

Journal of Baghdad College of Dentistry

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Title The Effect of LED Light on Depth of Cure and Microhardness of Three Types of Bulkfill Composite
 
Creator A, Mohannad R
Baban, Luma MS
 
Description Background: To evaluate the ISO depth of cure of bulkfill composites and depth of cure which determined by Vickers microhardness test.
Materials and Methods: Bulkfill resin composite specimens (n=150) were prepared of three bulkfill composite materials (TetricEvo Ceram, Quixfil and SDR) and light cured by Flash max p3 for 3, 10, 20 seconds and by wood pecker for 10, 20 seconds respectively, a mold was filled with one of the three bulkfill composites and light cured. The specimens removed from the mold and scraped by plastic spatula and the remaining length (absolute length) was measured which represent the ISO depth of cure. After that the specimens were returned into the mold and a microhardness indentation device applied on the specimen and hardness measurements (Vickers hardness, VHN) were made at defined distance, beginning at the resin composite that had been closest to the light curing unit (i.e. at the top) and proceeding toward the uncured resin composite (i.e. toward the bottom) on the basis of the VHN measurement, Vickers hardness test generated for each group.
Results and Conclusion: ISO depth of cure of bulkfill composite materials is time and type of light curing protocol dependent rather than type of material of bulkfill composite while the depth of cure determined by Vickers hardness number is material dependent in addition to the light curing protocol.
Key words: Bulkfill composite light curing intensity, depth of cure.
 
Publisher College of dentistry/ University of baghdad
 
Date 2016-03-15
 
Type info:eu-repo/semantics/article
info:eu-repo/semantics/publishedVersion
Peer-reviewed Article
 
Format application/pdf
 
Identifier http://jbcd.uobaghdad.edu.iq/index.php/jbcd/article/view/1081
10.12816/0024707
 
Source Journal of Baghdad College of Dentistry; Vol 28 No 1 (2016); 36-40
2311-5270
1680-0087
 
Language eng
 
Relation http://jbcd.uobaghdad.edu.iq/index.php/jbcd/article/view/1081/pdf_444
 
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