No Abstract Available.
These studies were in part supported by United States Public Health Service Grants D-720 and D-1252 and the Patterson-Hettinger Fund.
*Associate Professor and Chairman of Department, Graduate Orthodontics, University of Nebraska
**Associate Professor of Engineering Mechanics, lecturer, Graduate Department of Orthodontics, University of Nebraska
***From thesis submitted in partial fulfillment of requirements for the degree of Master of Science in Dentistry. University of Nebraska