Improvements in mechanical properties of bone cement materials

W. Panyayong, K. T. Chu, Y. Oshida, J. A. Platt, G. Hernandez

Research output: Chapter in Book/Report/Conference proceedingConference contribution

Abstract

Poly(methyl methacrylate) resin (PMMA) and conventional glass ionomer cement (GIC) are frequently used as dental restorative materials, as well as bone cement materials. The common drawbacks associated with these materials are relatively poor mechanical properties. Among various ways to improve mechanical properties, this study used incorporating method of metallic oxide powders. The 3-point transverse test showed that for PMMA. that total 1% admixing of titania and zirconia (mixed 1:1 fraction) and 2% of these oxides (mixed 1:2 and 2:1 fractions) exhibited significant beneficial effects on the mechanical properties (p<0.05). For GIC. it was found that (i) statistically samples with 10vol% of oxide powder incorporated to GIC powder exhibited higher strength, rigidity and toughness (p<0.05), and (ii) TiO2, ZrO2, and Al2O3 addition exhibited the highest strength (26-27MPa), zirconia showed the highest rigidity (5.5GPa) and alumina provided the highest toughness (0.7 N-mm).

Original languageEnglish (US)
Title of host publicationMedical Device Materials - Proceedings of the Materials and Processes for Medical Devices Conference 2003
EditorsS. Shrivastava
Pages471-474
Number of pages4
StatePublished - Dec 1 2003
EventMedical Device Materials - Proceedings of the Materials and Processes for Medical Devices Conference 2003 - Anaheim, CA., United States
Duration: Sep 8 2003Sep 10 2003

Publication series

NameMedical Device Materials - Proceedings of the Materials and Processes for Medical Devices Conference 2003

Other

OtherMedical Device Materials - Proceedings of the Materials and Processes for Medical Devices Conference 2003
CountryUnited States
CityAnaheim, CA.
Period9/8/039/10/03

ASJC Scopus subject areas

  • Engineering(all)

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