Abstract
Aims: Heat cured acrylic resin is the material of choice for construction of complete dentures due to its desirable properties, although it has some disadvantages as its susceptibility to fracture. Several methods and materials are used to reinforce acrylic resin denture base. One of these methods is reinforcement by using fibers. In this study, visible light cure fiber frame work is used as reinforcement material and compared with reinforcement with glass fiber. Materials and methods: in this study, 128 samples were prepared for evaluation of transverse strength, impact strength, surface hardness, and residual monomer tests. The samples were divided into four groups 8 sample for each group; control group without reinforcement, reinforcement by using visible light cure fiber frame work, random glass fiber reinforcement, and mesh glass fiber reinforcement. Results: the results of this study showed that visible light cure fiber frame work system significantly increase the transverse strength and impact strength of the heat cured acrylic resin, and it didn’t affect the surface hardness and amount of residual monomer of heat cured acrylic resin. Conclusions: visible light cure fiber frame work system increase acrylic resin denture base resistance to fracture.
Highlights
Methyl methacrylate is the most widely used denture base material, because it is economical, stable in oral environment, constructed and repaired
The results of the study showed that the transverse and impact strength of acrylic resin denture base material were significantly increased after reinforcement with glass fiber and visible light cure fiber frame work system, Figures (1,2) and Tables (1,2)
The increase in transverse and impact strength attributed to the direction of fiber in the polymer matrix and the aligned orientation of glass fiber, fibers placed perpendicular to the loading force provide the most effective reinforcement of acrylic resin.(6)
Summary
Methyl methacrylate is the most widely used denture base material, because it is economical, stable in oral environment, constructed and repaired. The aim of this study was to compare between light cured fiber frame work reinforcement system and glass fiber reinforcement on the transverse, impact strength, surface hardness and residual monomer of heat cured acrylic resin denture base material.
Sign-in/Register to view highlights & summary Sign-in/Register to access full text options 
Free) 
Talk to us
Join us for a 30 min session where you can share your feedback and ask us any queries you have
Schedule a call
