Affiliation: | 1. Chair of Biomaterials and Polymer Science, Department of Biochemical and Chemical Engineering, TU Dortmund, , 44227 Dortmund, Germany;2. Department of Oral Biology, College of Dental Medicine, Georgia Health Sciences University, , Augusta, GA 30912, USA;3. Freiburg Materials Research Center, University of Freiburg, , 79104 Freiburg, Germany;4. Ivoclar Vivadent AG, , 9494 Schaan, Liechtenstein |