Document Detail


Influence of microhybrid resin and etching times on bleached enamel for the bonding of ceramic brackets.
MedLine Citation:
PMID:  23538425     Owner:  NLM     Status:  In-Data-Review    
Abstract/OtherAbstract:
The aim of this study was to evaluate the shear bond strength (SBS) of polycrystalline ceramic brackets (PCB) bonded after bleaching treatment using different composite resins and enamel etching times. A total of 144 bovine incisors were randomly divided into two study groups (n = 72, each) as follows: G1, enamel bleached with 35% hydrogen peroxide, and G2 (control group), enamel unbleached. After the bleaching treatment, the samples were stored in artificial saliva for 14 days. These groups were further divided into two subgroups (n = 36, each) as follows: GA, brackets bonded with Transbond XT (3M) and GB, brackets bonded with Filtek Z250 (3M). For each resin used, three different etching times with 37% phosphoric acid (15, 30 and 60 seconds) were tested. SBS tests were performed using a universal testing machine (EMIC), and the adhesive remnant index (ARI) score was verified. Significant differences among the three experimental conditions and interactions between the groups were observed. The type of composite resin accounted for 24% of the influence on the bond strength, whereas the etching time and bleaching treatment accounted for 14.5% and 10% of the influence on bond strength, respectively. The ARI revealed that the most common area of adhesion failure was at the composite resin-bracket interface. The type of composite resin, etching time and external bleaching significantly influenced the SBS of PCB on enamel, even after 14 days of saliva storage.
Authors:
Leily Macedo Firoozmand; Juliana Viana Pereira Brandão; Melissa Proença Nogueira Fialho
Related Documents :
15762255 - Documentation of hip prostheses used in norway: a critical review of the literature fro...
8116385 - Interfaces between host and uncemented femoral hip prostheses.
25333135 - Automatic localization of cochlear implant electrodes in ct.
25350235 - Implant survival in 1- versus 2-implant mandibular overdentures: a systematic review an...
15979715 - Pollutant loads from the drainage basin to the venice lagoon (italy).
17928385 - Exposure to inhalable dust and its cyclohexane soluble fraction since the 1970s in the ...
Publication Detail:
Type:  Journal Article    
Journal Detail:
Title:  Brazilian oral research     Volume:  27     ISSN:  1807-3107     ISO Abbreviation:  Braz Oral Res     Publication Date:  2013 Apr 
Date Detail:
Created Date:  2013-03-29     Completed Date:  -     Revised Date:  -    
Medline Journal Info:
Nlm Unique ID:  101307187     Medline TA:  Braz Oral Res     Country:  Brazil    
Other Details:
Languages:  eng     Pagination:  142-8     Citation Subset:  D; IM    
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:  Concordance between cytopathology and incisional biopsy in the diagnosis of oral squamous cell carci...
Next Document:  An investigation of the presence of specific anaerobic species in necrotic primary teeth.