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) 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.
Ozturk
A Nilgun
AN
Selcuk University, Faculty of Dentistry, Department of Prosthodontics, Campus/Konya. nilgun25@hotmail.com
Inan
Ozgur
O
Yondem
Isa
I
D000042:Absorption; D000180:Acrylic Resins / Q000737:chemistry*; D000327:Adsorption; D000704:Analysis of Variance; D003764:Dental Materials / Q000737:chemistry*; D003819:Denture Bases; D005898:Glass / Q000737:chemistry*; D006358:Hot Temperature; D006801:Humans; D007101:Immersion; D008422:Materials Testing; D008872:Microwaves; D013499:Surface Properties; D013696:Temperature; D013997:Time Factors; D014867:Water / Q000737:chemistry*
D000180:Acrylic Resins; D003764:Dental Materials; C009753:fiberglass; D014867:Water; C075051:Acron MC