1. Postgraduate Program in Dentistry, School of Life and Health Sciences, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre, RS, Brazil
2. Postgraduate Program in Materials Engineering and Technology, NUCLEMAT- Metallic Materials Core, Polytechnic School, Pontifical Catholic University of Rio Grande do Sul (PUCRS), Porto Alegre, RS, Brazil
3. Postgraduate Program in Dentistry, School of Dentistry, State University of Rio de Janeiro (UERJ), Rio de Janeiro, Brazil