1. Department of Dental Materials and Prosthodontics, Univ Estadual Paulista (UNESP), Araçatuba Dental School, Jose Bonifacio, 1193, Araçatuba, São Paulo, 16015-050, Brazil
2. Department of Restorative Dentistry, University of Illinois at Chicago – College of Dentistry, 801 S. Paulina, Room 365B, Chicago, IL 60612-7211, USA
3. Department of Orthopedic Surgery, Rush University Medical Center, 1611 West Harrison, Chicago, IL 60612-7211, USA