| Affiliation: | 1. Department of Biomedical Sciences, Baylor College of Dentistry, Texas A & M Health Science Center, Dallas, TX 75246, United States;2. Department of Materials Science and Engineering, University of Texas at Arlington, Arlington, TX 75019, United States;3. Division of Periodontology, School of Dentistry, University of California, San Francisco, CA 94143, United States;4. Department of Preventive and Restorative Dental Sciences, School of Dentistry, University of California, San Francisco, CA 94143, United States |
