Document Detail

Effect of temperature on the flow properties of resin composite.
MedLine Citation:
PMID:  16494114     Owner:  NLM     Status:  MEDLINE    
This study evaluated the effect of temperature on the flow characteristics of three different resin composites: a packable, a microhybrid, and a flowable. The film thickness of the three composites was measured at 21 degrees C, 41 degrees C, 61 degrees C, and 83 degrees C (+/- 1.0 degrees C). Five tests were performed for each resin composite at each of the four test temperatures for a total of 60 tests. The resin composite film thickness decreased as the filler percentage decreased and the temperature increased. The film thickness decrease was a logarithmic fit with a high correlation coefficient. All of the resin composites exhibited increased flow at elevated temperature. The flow property of the packable material at 41-61 degrees C was similar to that of the microhybrid at room temperature.
James S Knight; Robert Fraughn; David Norrington
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Publication Detail:
Type:  Comparative Study; Journal Article    
Journal Detail:
Title:  General dentistry     Volume:  54     ISSN:  0363-6771     ISO Abbreviation:  Gen Dent     Publication Date:    2006 Jan-Feb
Date Detail:
Created Date:  2006-02-23     Completed Date:  2006-05-22     Revised Date:  2006-11-15    
Medline Journal Info:
Nlm Unique ID:  7610466     Medline TA:  Gen Dent     Country:  United States    
Other Details:
Languages:  eng     Pagination:  14-6     Citation Subset:  D    
Division of Operative Dentistry, College of Dental Medicine, Medical University of South Carolina, Charleston, USA.
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MeSH Terms
Analysis of Variance
Composite Resins*
Dental Restoration, Permanent / methods
Materials Testing
Phase Transition
Reg. No./Substance:
0/Composite Resins; 0/Esthet-X; 0/Esthet-X Flow; 0/SureFil packable composite

From MEDLINE®/PubMed®, a database of the U.S. National Library of Medicine

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