1. MDRCBB−Minnesota Dental Research Center for Biomaterials and Biomechanics, Minneapolis, MN 55455, USA
2. The Affiliated Stomatological Hospital of Nanchang University, Nanchang 330000, China
3. Faculty of Odontology, UIC Barcelona−International University of Catalonia, 08198 Sant Cugat del Vallès, Spain
4. IBEC Institute for Bioengineering of Catalonia, 08170 Barcelona, Spain