1. Departament of Oral Implantology, SOEBRAS, Florianópolis, SC, Brazil.
2. Department of Dentistry, State University of Ponta Grossa–UEPG, Ponta Grossa, PR, Brazil.
3. Department of Oral Surgery, Meridional Faculty–IMED, Passo Fundo, RS, Brazil.
4. Department of Prosthodontics, Meridional Faculty–IMED, Passo Fundo, RS, Brazil.
5. Biomaterials Laboratory, Military Institute of Engineering, Rio de Janeiro, RJ, Brazil.