European Journal of Prosthodontics and Restorative Dentistry

cover art

Cover Date:
December 2015
Print ISSN:
0965-7452
Electronic ISSN:
2396-8893
Vol:
23
Issue:
4

The Effect of Disinfection Techniques on the Flexural Strength of Thermopolymerisable Acrylic Resins With or Without Pigment Addition

ABSTRACT

Objectives: The aim of this study was to assess the flexural strength of two brands of thermopolymerisable acrylic resins (Onda Cryl, Artigos Odontológicos Clássico Ltda, São Paulo, SP, Brazil; and Lucitone 550, Dentsply, York, PA, USA) with varying concentrations of pigment (Poli-Côr, Artigos Odontológicos Clássico Ltda, São Paulo,SP, Brazil)
under the influence of thermocycling, storage and disinfection.
Material and Methods: A total of 210 samples were manufactured (105 for each acrylic resin brand), with dimensions of 64 x 10 x 3.3 mm. The samples were divided into 30 subgroups (n=7) according to the proportion of pigment used (without pigment, 3% and 7%), the assessment period (initial or thermocycling for 2000 cycles) and disinfection method (immersion in 1% sodium hypochlorite, (Apothicário, Araçatuba, SP, Brazil), microwave energy or immersion in alkaline peroxide (Efferdent, Pfizer, Morris Plains, NJ, USA). The samples were submitted to the flexural strength test before and after thermocycling, and after storage with disinfection. The disinfection process was performed every 3 days, for 60 days. Data were submitted to analysis of variance (ANOVA) and Tukey test (p<0.05).

Keywords: Acrylic Resins, Color Stability, Flexural Strength

10.1922/EJPRD_1343Goiato06

Article Price
£15.00
Institution Article Price
£
Page Start
193
Page End
198
Authors
Marcelo Coelho Goiato, Bruna Carolina Rossatti Zuccolotti, Marcela Filié Haddad, Amália Moreno, Aldiéris Alves Pesqueira, Humberto Gennari Filho, Daniela Micheline dos Santos

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  1. Replacing Amalgam Restorations : A Standardized Protocol Based on Analyzing Tissue Physicochemical Modifications
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  1. Evaluation of Chlorine Dioxide Irrigation Solution on the Microhardness and Surface Roughness of Root Canal Dentin
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  1. In Vitro Effects of 2.5% Titanium Tetrafluoride on Streptococcus Mutans and Lactobacillus Casei in Dentin Followed by Self-Etching Adhesive Systems
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  1. Effectiveness of Disposable (Single-use) Tips for Dental Air-water Syringes
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  2. 193
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