Document Detail

Starch tubing: an alternative method to build up microshear bond test specimens.
MedLine Citation:
PMID:  23534009     Owner:  NLM     Status:  MEDLINE    
PURPOSE: To evaluate an alternative device using starch tubes to build up resin composite specimens for microshear bond tests.
MATERIALS AND METHODS: Twenty human molars were selected and sectioned mesiodistally to obtain two sections. The teeth were randomly divided into 4 groups (n = 10) according to the adhesive system - a two-step etch-and-rinse adhesive (Adper Single Bond) and a two-step self-etching adhesive (Clearfil SE Bond) - and the type of tube, starch or polyethylene. The tubes were evaluated under a stereomicroscope at 25X magnification to observe the variation in internal diameter. The resin composite was bonded to flat enamel surfaces using one of the adhesive systems and tube types. After 24 h storage in distilled water, the microshear bond strength (µSBS) was determined and the fracture pattern was analyzed under a stereomicroscope (400X magnification). The microshear bond strength values were subjected to two-way ANOVA. The chi-square test was used to compare pre-test failures and fracture patterns between the groups (p < 0.05).
RESULTS: The type of tube, the adhesive system, and their interaction did not influence the bond strength values (p = 0.062, p = 0.122, and p = 0.301, respectively). No significant differences were observed for pre-test failures or fracture patterns (p = 0.320 and p = 0.561, respectively).
CONCLUSION: Using starch tubes is an alternative to build up composite resin specimens for microshear bond strength testing with the two tested adhesive systems.
Tamara Kerber Tedesco; Anelise Fernandes Montagner; Jovito Adiel Skupien; Fabio Z M Soares; Alexandre Henrique Susin; Rachel de Oliveira Rocha
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Publication Detail:
Type:  Comparative Study; Evaluation Studies; Journal Article    
Journal Detail:
Title:  The journal of adhesive dentistry     Volume:  15     ISSN:  1461-5185     ISO Abbreviation:  J Adhes Dent     Publication Date:  2013 Aug 
Date Detail:
Created Date:  2013-08-08     Completed Date:  2013-09-17     Revised Date:  2014-04-21    
Medline Journal Info:
Nlm Unique ID:  100888552     Medline TA:  J Adhes Dent     Country:  England    
Other Details:
Languages:  eng     Pagination:  311-5     Citation Subset:  D    
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MeSH Terms
Analysis of Variance
Chi-Square Distribution
Composite Resins*
Dental Bonding* / methods
Dental Enamel
Dental Stress Analysis / instrumentation*
Materials Testing
Resin Cements
Shear Strength
Statistics, Nonparametric
Reg. No./Substance:
0/Composite Resins; 0/Polyethylenes; 0/Resin Cements; 9005-25-8/Starch

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

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