Based on a thesis submitted to the Faculty of the Graduate School, State University of New York at Buffalo, New York, in partial fulfillment of the requirements for the M.S. degree.

This investigation was supported in part by USPHS research grant 5 RO1 DE0271302 from the National Institute of Dental Research, National Institutes of Health, Bethesda, Maryland, and General Research support Grant SO1 FR0533008 to the School of Dentistry, State University of New York at Buffalo, New York.