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Effect of the incorporation of an antiseptical monomer on color stability of a denture base acrylic resin

Grant number: 08/02725-4
Support type:Scholarships in Brazil - Scientific Initiation
Effective date (Start): June 01, 2008
Effective date (End): May 31, 2009
Field of knowledge:Health Sciences - Dentistry
Principal Investigator:Raphael Freitas de Souza
Grantee:Ana Paula Zanini
Home Institution: Faculdade de Odontologia de Ribeirão Preto (FORP). Universidade de São Paulo (USP). Ribeirão Preto , SP, Brazil

Abstract

The incorporation of an antiseptic agent into denture bases has a great preventive potential against that accumulation. However, active sites in the resulting copolymer might present greater affinity to water and staining agents. The aim of this project is to evaluate the incorporation of an antiseptic monomer in a heat-polymerized acrylic resin and its effect over color stability after immersion in different solutions. The tested compound will be the methacryloyloxyundecylpyridinium bromide (MUPB), which can copolymerize with conventional acrylic resins. Tests will be conducted over a heat-polymerized acrylic resin incorporating 4 concentrations of MUPB (0, 0.15, 0.3 or 0.6 %, mass). Specimens will be immersed in distilled water, coffee or red wine during 36 days, and color changes (”E) will be evaluated by a portable spectrophotometer (Color Guide 45/0; BYK-Gardner Latin America, Santo André, SP). ”E will be compared among concentrations and solution by means of 2-way ANOVA followed by Tukey HSD test (±=.05).

Scientific publications
(References retrieved automatically from Web of Science and SciELO through information on FAPESP grants and their corresponding numbers as mentioned in the publications by the authors)
REGIS, ROMULO ROCHA; ZANINI, ANA PAULA; DELLA VECCHIA, MARIA P.; SILVA-LOVATO, CLAUDIA HELENA; OLIVEIRA PARANHOS, HELENA FREITAS; DE SOUZA, RAPHAEL FREITAS. Physical Properties of an Acrylic Resin after Incorporation of an Antimicrobial Monomer. JOURNAL OF PROSTHODONTICS-IMPLANT ESTHETIC AND RECONSTRUCTIVE DENTISTRY, v. 20, n. 5, p. 372-379, JUL 2011. Web of Science Citations: 15.

Please report errors in scientific publications list by writing to: cdi@fapesp.br.