%0 Journal Article
%T Maxillofacial Materials Reinforced with Various Concentrations of Polyhedral Silsesquioxanes
%A Sharif A. Mohammad
%A Alvin G. Wee
%A Deborah J. Rumsey
%A Scott R. Schricker
%J Journal of Dental Biomechanics
%D 2010
%I 
%R 10.4061/2010/701845
%X 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 (p=.050) and extension before failure (p=.050), respectively, between concentrations of 0% and 5%. For tear resistance, a significant difference was observed in mean load (p=.002) between concentrations of 1% and 5%. Significant differences were also observed in extension before failure between concentrations of 0% and 1% (p=.002) and between 0% and 2% (p=.002). 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.
%U http://dx.doi.org/10.4061/2010/701845