The effect of glass fibre-reinforcement on the transverse strength, deflection and modulus of elasticity of repaired acrylic resins


Keyf F., Uzun G.

INTERNATIONAL DENTAL JOURNAL, vol.50, no.2, pp.93-97, 2000 (Journal Indexed in SCI) identifier

  • Publication Type: Article / Article
  • Volume: 50 Issue: 2
  • Publication Date: 2000
  • Doi Number: 10.1002/j.1875-595x.2000.tb00805.x
  • Title of Journal : INTERNATIONAL DENTAL JOURNAL
  • Page Numbers: pp.93-97

Abstract

Aim: To test the effect of reinforcement qualities of glass fibre in the repair of acrylic fractures. Methods: Four types of heat-curing acrylic resin test specimens were fabricated. The bottom and sides of the specimens were placed in stone to form a repair template. Lines were drawn 3.5mm on each side of the centring mark. The 45 degree-bevel joint margins were cut at these lines to simulate fracture and the centre section was discarded. A 1mm gap was created between the margins before repair with autopolymerising acrylic resin with and without glass fibre. Outcome measures: A three-point loading test was used to measure transverse strength, deflection and the modulus of elasticity of repaired acrylic resin joints. Results: The transverse strength of acrylic resins was increased with fibres. Conclusion: Glass fibre-reinforcement significantly increased resistance to deflection and increased the modulus of elasticity.