1. Undergraduate student, School of Dentistry; Federal University of Sergipe; Aracaju SE Brazil
2. DDS, Graduate student, Graduate program in Dentistry; Federal University of Sergipe; Aracaju SE Brazil
3. DDS, MSc, PhD, Professor at Department of Restorative Dentistry; Federal University of Pelotas; Pelotas RS Brazil
4. DDS, MSc, PhD, Professor at Department of Restorative Dentistry; Federal University of Sergipe; Aracaju SE Brazil