Dimensional changes and water sorption of two acrylic polymer materials reinforced with glass fibres

The purpose of this study was to examine the effect of glass fibre reinforcement on the dimensional changes and water sorption of a heat-polymerising denture acrylic polymer and a microwave-polymerising denture acrylic polymer. Fifteen specimens from each group were prepared with 2% by weight (18 mg...

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Bibliographic Details
Published inThe European journal of prosthodontics and restorative dentistry Vol. 11; no. 3; p. 129
Main Authors Ozturk, A Nilgun, Inan, Ozgur, Yondem, Isa
Format Journal Article
LanguageEnglish
Published England 01.09.2003
Subjects
Absorption
Acrylic Resins - chemistry
Adsorption
Analysis of Variance
Dental Materials - chemistry
Denture Bases
Glass - chemistry
Hot Temperature
Humans
Immersion
Materials Testing
Microwaves
Surface Properties
Temperature
Time Factors
Water - chemistry
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Summary:The purpose of this study was to examine the effect of glass fibre reinforcement on the dimensional changes and water sorption of a heat-polymerising denture acrylic polymer and a microwave-polymerising denture acrylic polymer. Fifteen specimens from each group were prepared with 2% by weight (18 mg) E-glass fibre and 15 without glass fibre. The dimensional change measurements were made at three different stages on the 60 specimens. The water sorption calculations were made on specimens immersed in distilled water at 37 degrees C +/- 1 degree C for 0, 1 and 7 days. Glass fibre reinforcement and processing method do not affect the dimensional change of test specimens, but as the time increased the dimensional change decreased. The glass fibre reinforcement decreased water sorption, but the two processing methods failed to show a significant difference.
ISSN:0965-7452