Maxillofacial Materials Reinforced with Various Concentrations of Polyhedral Silsesquioxanes
- Sharif A. Mohammad sharif84{at}gmail.com1
- Alvin G. Wee awee{at}unmc.edu2
- Deborah J. Rumsey rumsey{at}stat.osu.edu3
- Scott R. Schricker schricker.1{at}osu.edu4
- 1Poznan University of Medical Sciences, Poznan, Poland
- 2Division of Oral Facial Prosthetics/Dental Oncology, Department of Otolaryngology, University of Nebraska Medical Center, Omaha, NE 68198-1225, USA
- 3Department of Statistics, Auxiliary Faculty, The Ohio State University, Columbus, OH 43210, USA
- 4College of Dentistry, The Ohio State University, Columbus, OH 43210, USA
Abstract
This study evaluates two mechanical properties, tensile strength and tear strength, of maxillofacial materials reinforced
with functional polyhedral silsesquioxane (POSS) nanoparticles at 0.0, 0.5, 1.0, 2.0, and 5.0% (mass/mass) loading. Adding
POSS was found to significantly affect the overall tensile strength and extensibility of the maxillofacial material. Significant
differences were found in mean peak load (
) and extension before failure (
), respectively, between concentrations of 0% and 5%. For tear resistance, a significant difference was observed in mean load
(
) between concentrations of 1% and 5%. Significant differences were also observed in extension before failure between concentrations
of 0% and 1% (
) and between 0% and 2% (
). Increased resistance to tensile or shearing stresses could lead to greater clinical longevity. The following results suggest
that functional nanoparticles can be used to improve properties without compromising clinical handling.
- Received October 27, 2009.
- Accepted June 21, 2010.
- © 2010 Sharif A. Mohammad et al.
