Document Detail

Resin composite shrinkage and marginal adaptation with different pulse-delay light curing protocols.
MedLine Citation:
PMID:  16324145     Owner:  NLM     Status:  MEDLINE    
The aims of this study were, first, to measure shrinkage induced by different methods of pulse-delay light curing and, second, to verify their influence on the marginal adaptation of class V restorations in enamel and dentin. Eight groups, comprising seven groups (n = 6) with different pulse-delay parameters and a control group, were compared for dynamic linear displacement and force by using a fine hybrid composite. Based on these results, the pulse-delay curing procedure with the lowest shrinkage force was chosen and tested against the control group with respect to marginal adaptation in class V restorations (n = 8) before and after simultaneous thermal and mechanical loading. Statistically significant differences between groups were found for both shrinkage properties tested, with one pulse-delay group giving the lowest overall shrinkage values. However, the percentages of 'continuous margin' of this group, and of the control before and after loading, were not significantly different in dentin, whereas a significantly lower percentage of 'continuous margin' was detected in the pulse-delay group in enamel after loading.
Ivo Krejci; Milanka Planinic; Minos Stavridakis; Serge Bouillaguet
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Publication Detail:
Type:  Comparative Study; In Vitro; Journal Article    
Journal Detail:
Title:  European journal of oral sciences     Volume:  113     ISSN:  0909-8836     ISO Abbreviation:  Eur. J. Oral Sci.     Publication Date:  2005 Dec 
Date Detail:
Created Date:  2005-12-05     Completed Date:  2007-12-13     Revised Date:  2009-11-19    
Medline Journal Info:
Nlm Unique ID:  9504563     Medline TA:  Eur J Oral Sci     Country:  Denmark    
Other Details:
Languages:  eng     Pagination:  531-6     Citation Subset:  D; IM    
Division of Cariology and Endodontology, School of Dental Medicine, University of Geneva, Geneva, Switzerland.
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MeSH Terms
Composite Resins / chemistry*,  radiation effects
Dental Bonding / methods*
Dental Marginal Adaptation*
Dental Stress Analysis
Resin Cements / chemistry*,  radiation effects
Reg. No./Substance:
0/Composite Resins; 0/Resin Cements

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