Affiliation: | 1. Assistant Professor, Department of Restorative Dentistry, School of Dentistry, University of Washington, Seattle, Wash;2. Professor, Department of Restorative Dentistry, School of Dentistry, University of Washington, Seattle, Wash;3. Associate Professor, Department of Restorative Dentistry, School of Dentistry, University of Washington, Seattle, Wash;4. Research Associate Professor, Department of Dental Public Health Sciences, University of Washington, Seattle, Wash |