Some flexural properties of a nylon denture base polymer
- 22 December 2004
- journal article
- research article
- Published by Wiley in Journal of Oral Rehabilitation
- Vol. 32 (1), 65-71
- https://doi.org/10.1111/j.1365-2842.2004.01370.x
Abstract
Nylon denture base material could be a useful alternative to poly (methyl methacrylate) (PMMA) in special circumstances such as patient allergy to the monomer. The aim of this study was to evaluate the flexural properties of a nylon denture base material (Lucitone FRS), a conventional compression-moulded heat-polymerized (Meliodent), a compression-moulded microwave-polymerized (Acron MC) and an injection-moulded microwave-polymerized (Lucitone 199) PMMA polymers. The effect of aldehyde-free, oxygen releasing disinfectant solution (Perform) on these properties was also investigated. The flexural modulus and the flexural strength were assessed with a three-point bending test. Specimens were stored in water at a temperature of 37 degrees C for 30 days. For each material, half of the prepared specimens were randomly selected and immersed in the disinfectant 24 h prior to testing. Results were compared statistically at a confidence level of 95%. The result showed that in both the control and disinfected groups, the flexural modulus of nylon was significantly lower than the three PMMA polymers. The flexural strength of nylon was significantly lower than those of Meliodent and Acron MC but was comparable with Lucitone 199. A 24-h immersion in the disinfecting solution increased the rigidity of nylon denture base material.Keywords
This publication has 26 references indexed in Scilit:
- A severe asthmatic reaction to poly(methyl methacrylate) denture base resinBritish Dental Journal, 1990
- The effect of vacuum-mixed autopolymerizing acrylic resins on porosity and transverse strengthThe Journal of Prosthetic Dentistry, 1988
- Comparison of denture acrylic resins cured by boiling water and microwave energyAustralian Dental Journal, 1988
- A comparison of denture base acrylic resins polymerised by microwave irradiation and by conventional water bath curing systemsDental Materials, 1988
- Denture bases: the effects of various treatments on clarity, strength and structureJournal of Dentistry, 1987
- The use of nylon as a denture-base materialJournal of Dentistry, 1986
- Recent experiences with denture polymersJournal of Dentistry, 1984
- Sterilization of complete dentures with sodium hypochloriteThe Journal of Prosthetic Dentistry, 1984
- Residual monomer levels in denture bases. The effects of varying short curing cyclesBritish Dental Journal, 1982
- The Cytotoxic Effect of Denture Base PolymersActa Odontologica Scandinavica, 1981