Comparison of Transverse Strength for different types of acrylic resin denture base materials after relining with visible light-cured material

Zaid Aboud, IKhlas

	Comparison of Transverse Strength for different types of acrylic resin denture base materials after relining with visible light-cured material
journal of kerbala university
Article 1, Volume 11, Issue 2, 2015, Pages 242-252 PDF (0 K)
Author
IKhlas Zaid Aboud
Abstract
The aimed of this study to evaluate the transverse strength for different types of acrylic denture base materials after being relined with visible light-cured material. Sixty samples were prepared from acrylic denture base and divided into two main groups according to polymerized material. Samples of heat-cured (water bath, Vertex) and visible light-cured (Mega denta) were relined with a hard light-activated material (Mega denta). Bulk denture base samples were also used for comparison of transverse strength test. Surface roughness was evaluated among roughened relined groups. Relining procedure was facilitated by the use of a bonding agent (LlGHTDON-Bonding Dreve-Dentamid / GMBH Germany). A three point load test was used to measuring transverse strength for both bulk and relined denture base material. Instron testing machine was used to evaluate transverse strength. The result obtained from this study revealed a slight improvement in transverse strength of all relined denture base samples after relining with visible light-cured material. The smooth relined samples exhibited non-significant increase in transverse strength compared to rough relined samples. Generally, it was concluded that the investigated transverse strength as a mechanical properties of relined samples are dependent on those of denture base polymer and on the ability of polymers to bond to each other.

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