Influence of storage period and effect of different brands of acrylic resin on the dimensional accuracy of the maxillary denture base

dc.contributorUniversidade Estadual Paulista (UNESP)
dc.creatorMiéssi, Ana Carolina
dc.creatorGoiato, Marcelo Coelho
dc.creatorSantos, Daniela Micheline dos
dc.creatorDekon, Stefan Fiuza de Carvalho
dc.creatorOkida, Ricardo Coelho
dc.date2014-05-27T11:23:44Z
dc.date2016-10-25T18:26:19Z
dc.date2014-05-27T11:23:44Z
dc.date2016-10-25T18:26:19Z
dc.date2008-12-01
dc.date.accessioned2017-04-06T01:33:35Z
dc.date.available2017-04-06T01:33:35Z
dc.identifierBrazilian Dental Journal, v. 19, n. 3, p. 204-208, 2008.
dc.identifier0103-6440
dc.identifier1806-4760
dc.identifierhttp://hdl.handle.net/11449/70710
dc.identifierhttp://acervodigital.unesp.br/handle/11449/70710
dc.identifier10.1590/S0103-64402008000300005
dc.identifierS0103-64402008000300005
dc.identifier2-s2.0-62149085617.pdf
dc.identifier2-s2.0-62149085617
dc.identifier0000-0002-3800-3050
dc.identifierhttp://dx.doi.org/10.1590/S0103-64402008000300005
dc.identifier.urihttp://repositorioslatinoamericanos.uchile.cl/handle/2250/891779
dc.descriptionThe aim of this study was to evaluate the dimensional changes of denture bases made from different resins after different storage periods. For this purpose, 25 sets of plaster models/resin bases were prepared using 4 acrylic resins submitted to two types of polymerization: 1- QC-20 submitted to polymerization by microwave energy; 2- QC-20 submitted to polymerization by water hot bath; 3- Vipi Cril submitted to polymerization by water hot bath; 4- Vipi Wave submitted to polymerization by microwave energy; and 5- Onda Cryl submitted to polymerization by microwave energy. After polymerization, the specimens were sectioned for accuracy readings using a comparison microscope. Readings were taken at 3 points: the crests of the right (A) and left (B) ridges, and the median region of the palate, in 4 different periods. The data obtained were submitted to two-way ANOVA and Tukey's test at 5% significance level. The greatest distortions were found in the posterior palatal region of the base (M), with statistically significant difference (p<0.05) for the studied resins. All acrylic resins presented dimensional changes and the storage period influenced these alterations.
dc.languageeng
dc.relationBrazilian Dental Journal
dc.rightsinfo:eu-repo/semantics/openAccess
dc.subjectDenture base
dc.subjectDimensional change
dc.subjectPacking methods
dc.subjectPost-pressing time
dc.subjectacrylic acid resin
dc.subjectbiomedical and dental materials
dc.subjectonda cryl
dc.subjectpolymer
dc.subjectQC 20 (denture base resin)
dc.subjectvipi cril
dc.subjectvipi wave
dc.subjectwater
dc.subjectwax
dc.subjectchemistry
dc.subjectcomparative study
dc.subjectdental care
dc.subjectdenture
dc.subjectheat
dc.subjecthuman
dc.subjectmaterials testing
dc.subjectmicrowave radiation
dc.subjectsurface property
dc.subjecttemperature
dc.subjecttime
dc.subjecttooth brushing
dc.subjectAcrylic Resins
dc.subjectDental Casting Technique
dc.subjectDental Materials
dc.subjectDental Models
dc.subjectDental Polishing
dc.subjectDenture Bases
dc.subjectDenture Design
dc.subjectDenture, Complete, Upper
dc.subjectHot Temperature
dc.subjectHumans
dc.subjectMaterials Testing
dc.subjectMicrowaves
dc.subjectPolymers
dc.subjectSurface Properties
dc.subjectTemperature
dc.subjectTime Factors
dc.subjectWater
dc.subjectWaxes
dc.titleInfluence of storage period and effect of different brands of acrylic resin on the dimensional accuracy of the maxillary denture base
dc.typeOtro


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