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The effects of light curing units and environmental temperatures on C 000000000000 000000000000 000000000000 111111111111 000000000000 111111111111 000000000000 000000000000 000000000000 C conversion of commercial and experimental bonding agents.
MedLine Citation:
PMID:  25382949     Owner:  NLM     Status:  PubMed-not-MEDLINE    
Abstract/OtherAbstract:
BACKGROUND AND PURPOSE: Polymerization of bonding agents (BA) is a critical factor in determining the success of bonded restorations. We aimed to assess the effects of two light curing units and two temperatures on the extent of polymerization (EP) of a commercial BA and an experimental BA.
METHODS: Forty BA specimens were randomly divided into 8 subgroups of n = 5 to compare the polymerization of two BAs (experimental/Scotchbond) based on the variables: temperature (23/37 °C) and light-curing unit (quartz-tungsten-halogen/light-emitting diode). The EP (%) was measured using differential scanning calorimetry, and analyzed using the t-test, two- and three-way analyses of variance (ANOVA), and the Bonferroni test (α = 0.05).
RESULTS: There were significant differences between the EP results between the two BAs (P = 0.012) and due to the different temperatures (P = 0.001), but not between the different light-curing units (P = 0.548). The interaction between BA and temperature was significant (P < 0.001). The other interactions were nonsignificant.
CONCLUSIONS: The two light-curing units had similar effects on the EP. The EP values were better when curing was performed at human body temperature.
Authors:
Tahereh Sadat Jafarzadeh-Kashi; Mohmmad Erfan; Salmeh Kalbasi; Malihe Ghadiri; Vahid Rakhshan
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Publication Detail:
Type:  Journal Article     Date:  2014-08-06
Journal Detail:
Title:  The Saudi dental journal     Volume:  26     ISSN:  1013-9052     ISO Abbreviation:  Saudi Dent J     Publication Date:  2014 Oct 
Date Detail:
Created Date:  2014-11-10     Completed Date:  2014-11-10     Revised Date:  2014-11-13    
Medline Journal Info:
Nlm Unique ID:  9313603     Medline TA:  Saudi Dent J     Country:  Saudi Arabia    
Other Details:
Languages:  eng     Pagination:  166-70     Citation Subset:  -    
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