SMILE – Repository of the Faculty of Dental Medicine
University of Belgrade - Faculty of Dental Medicine
    • English
    • Српски
    • Српски (Serbia)
  • English 
    • English
    • Serbian (Cyrilic)
    • Serbian (Latin)
  • Login
View Item 
  •   SMILE
  • Stomatološki fakultet
  • Radovi istraživača
  • View Item
  •   SMILE
  • Stomatološki fakultet
  • Radovi istraživača
  • View Item
JavaScript is disabled for your browser. Some features of this site may not work without it.

The application of hydrogen peroxide in composite repair

Authorized Users Only
2007
Authors
Papacchini, Federica
Monticelli, Francesca
Radović, Ivana
Chieffi, Nicoletta
Goracci, Cecilia
Tay, Franklin
Polimeni, Antonella
Ferrari, Marco
Article (Published version)
Metadata
Show full item record
Abstract
This study examined the influence of different surface conditioning methods on composite-to-composite microtensile bond strength. Thirty two-year old composite resin discs were randomly divided into three groups according to the different mechanical/chemical surface pretreatment tested: (1) 38% hydrogen peroxide (H2O2) -treatment; (2) 50-mu m aluminum oxide sandblasting; (3) no treatment. Depending on the intermediate agent applied, two subgroups were created: (A) three-step adhesive system; (B) prehydrolyzed silane coupling agent + three-step adhesive system. Microtensile bond strength measurements were performed and the data were statistically analyzed with Kruskall-Wallis Analysis of Variance and Dunn's multiple range test for post hoc comparisons (p lt 0.05). Failure mode was evaluated with a scanning electron microscope. Changes in composite surface topography after H2O2 treatment were also investigated. Composite repair strength did not benefit from H2O2 treatment and adhesive ...application. Preliminary sandblasting significantly improved interfacial bond strength regardless of the intermediate agent applied. No changes in surface texture were produced after H2O2 treatment. An atypical fracture pattern was detected at the interfacial level between H2O2-treated composite surfaces and the overlying adhesive and composite. H2O2 treatment affected the composite-to-composite repair strength: a compromised resin polymerization may occur, resulting in a poor interfacial quality and a weak bond. Sandblasting still remains a reliable technique for composite repair.

Keywords:
sandblasting / hydrogen peroxide / silane / repair strength / interface
Source:
Journal of Biomedical Materials Research Part B: Applied Biomaterials, 2007, 82B, 2, 298-304
Publisher:
  • Wiley, Hoboken

DOI: 10.1002/jbm.b.30733

ISSN: 1552-4973

PubMed: 17238160

WoS: 000248194100003

Scopus: 2-s2.0-34547101939
[ Google Scholar ]
16
17
URI
http://smile.stomf.bg.ac.rs/handle/123456789/1326
Collections
  • Radovi istraživača
Institution
Stomatološki fakultet

DSpace software copyright © 2002-2015  DuraSpace
About Smile – School of dental Medicine dIgitaL archivE | Send Feedback

OpenAIRERCUB
 

 

All of DSpaceInstitutionsAuthorsTitlesSubjectsThis institutionAuthorsTitlesSubjects

Statistics

View Usage Statistics

DSpace software copyright © 2002-2015  DuraSpace
About Smile – School of dental Medicine dIgitaL archivE | Send Feedback

OpenAIRERCUB