Document Detail


Shear bond strength of one-step self-etch adhesives to enamel: effect of acid pretreatment.
MedLine Citation:
PMID:  23297838     Owner:  NLM     Status:  Publisher    
Abstract/OtherAbstract:
AIM: The purposes of this study were to evaluate the effect of surface pretreatment with phosphoric acid on the enamel bond strength of four-one-step self-etch adhesives with different pH values. MATERIAL AND METHODS: One hundred bovine permanent mandibular incisors were used. The materials used in this study included four-one-step self-etch adhesives with different pH values: Adper(™) Easy Bond Self-Etch Adhesive (ph = 0,8-1), Futurabond NR (ph = 1,4), G-aenial Bond (ph = 1,5), Clearfil(3) S Bond (ph = 2,7). One two-step self-etch adhesive (Clearfil SE Bond/ph = 0,8-1) was used as control. The teeth were assigned into two subgroups according to bonding procedure. In the first subgroup (n = 50), no pretreatment agent was applied. In the second subgroup (n = 50), etching was performed using 37% phosphoric acid for 30 s. After adhesive systems application, a nanohybrid composite resin was inserted into the enamel surface. The specimens were placed in a universal testing machine (Model 3343, Instron Corp., Canton, Mass., USA). After the testing procedure, the fractured surfaces were examined with an optical microscope at a magnification of 10× to determine failure modes. The adhesive remnant index (ARI) was used to assess the amount of adhesive left on the enamel surface. RESULTS: Descriptive statistics of the shear bond strength and frequency distribution of ARI scores were calculated. CONCLUSIONS: Enamel pretreatment with phosphoric acid significantly increased bond strength values of all the adhesives tested. No significant differences in bond strength were detected among the four different one-step self-etch adhesives with different pH. Two-step self-etch adhesive showed the highest bond strength.
Authors:
Claudio Poggio; Andrea Scribante; Federica Della Zoppa; Marco Colombo; Riccardo Beltrami; Marco Chiesa
Related Documents :
23230638 - Effect of water storage on microtensile bond strength of a two-step self-etch adhesive ...
21292468 - Caveolae: a regulatory platform for nutritional modulation of inflammatory diseases.
23327228 - Dual-cured etch-and-rinse adhesive systems increase the bond durability of direct coron...
2144828 - Two different proteoheparan sulfate species are synthesized by bovine corneal endotheli...
19948968 - Synergistic effect of hif-1alpha gene therapy and hif-1-activated bone marrow-derived a...
12871828 - Substance p increases neutrophil adhesion to human umbilical vein endothelial cells.
Publication Detail:
Type:  JOURNAL ARTICLE     Date:  2013-1-9
Journal Detail:
Title:  Dental traumatology : official publication of International Association for Dental Traumatology     Volume:  -     ISSN:  1600-9657     ISO Abbreviation:  Dent Traumatol     Publication Date:  2013 Jan 
Date Detail:
Created Date:  2013-1-9     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101091305     Medline TA:  Dent Traumatol     Country:  -    
Other Details:
Languages:  ENG     Pagination:  -     Citation Subset:  -    
Copyright Information:
© 2013 John Wiley & Sons A/S.
Affiliation:
Department of Clinical-Surgical, Diagnostic and Pediatric Sciences, University of Pavia, Pavia, Italy.
Export Citation:
APA/MLA Format     Download EndNote     Download BibTex
MeSH Terms
Descriptor/Qualifier:

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


Previous Document:  Spectrum of ?-thalassemia mutations in transfusion-dependent ?-thalassemia patients from the Eastern...
Next Document:  Genes expressed by the biological control bacterium Pseudomonas protegens Pf-5 on seed surfaces unde...