Document Detail


Bond strength and nanoroughness assessment on human pretreated cementum surfaces.
MedLine Citation:
PMID:  20546826     Owner:  NLM     Status:  MEDLINE    
Abstract/OtherAbstract:
OBJECTIVES: To determine the bond strength of seven adhesive systems to human cementum, and to assess the promoted surface roughness. METHODS: Extracted human canines were used for the present study. The mesial surface from the cervical third of the roots were ground flat with wet 600-grit silicon carbide paper and bonded. Seven adhesive systems were employed: an etch-and-rinse adhesive (Single Bond), two two-step self-etching (Clearfil SE Bond and Resulcin Aquaprime) and four one-step self-etching (One-up Bond F, Prompt-L-Pop, Etch and Prime 3.0 and NRC+Prime&Bond NT). Composite build-ups were constructed and stored in a humid environment for 24h at 37 degrees C. Specimens were sectioned into 1mm(2) beams and tested for microtensile bond strength (MTBS). Additional surfaces were conditioned for atomic force microscopy (AFM) analysis. Results were analyzed with ANOVA and Student-Newman-Keuls tests (P<0.05). RESULTS: Single Bond showed the highest MTBS values. No differences were found between Resulcin Aquaprime, One-up Bond and Prompt-L-Pop. Clearfil SE Bond, Etch and Prime and NRC+Prime&Bond NT obtained the lowest bond strength values. H(3)PO(4) acid treatment of cementum and Resulcin Aquaprime showed the highest nanoroughness parameters and One-up Bond the lowest. CONCLUSION: The etch-and-rinse adhesive and the two-step self-etching adhesive with the lowest pH value promoted the highest bond strength to human cementum surfaces.
Authors:
M Toledano; E Osorio; F S Aguilera; G Gomes; J Perdigão; R Osorio
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Publication Detail:
Type:  Journal Article; Research Support, Non-U.S. Gov't     Date:  2010-06-09
Journal Detail:
Title:  Journal of dentistry     Volume:  38     ISSN:  1879-176X     ISO Abbreviation:  J Dent     Publication Date:  2010 Aug 
Date Detail:
Created Date:  2010-07-08     Completed Date:  2010-10-27     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  0354422     Medline TA:  J Dent     Country:  England    
Other Details:
Languages:  eng     Pagination:  678-85     Citation Subset:  D; IM    
Copyright Information:
Copyright 2010 Elsevier Ltd. All rights reserved.
Affiliation:
Department of Dental Materials, School of Dentistry, University of Granada, Avda Fuerzas Armadas 1, 1B, 18014 Granada, Spain. toledano@ugr.es
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MeSH Terms
Descriptor/Qualifier:
Dental Bonding* / methods
Dental Cementum*
Dental Etching / methods
Dental Stress Analysis
Humans
Microscopy, Atomic Force
Resin Cements* / chemistry
Surface Properties
Tensile Strength
Chemical
Reg. No./Substance:
0/Resin Cements

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


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