1. MDRCBB-Minnesota Dental Research Center for Biomaterials and Biomechanics, Department of Restorative Sciences, School of Dentistry, University of Minnesota, Minneapolis, MN, USA
2. Division of Basic Research, Department of Odontology, UIC Barcelona – Universitat Internacional de Catalunya, Sant Cugat del Vallès, (Barcelona), Spain
3. BIST – Barcelona Institute for Science and Technology, Barcelona, Spain