1. Department of Endodontics; Rio de Janeiro State University; Rio de Janeiro Brazil
2. Department of Endodontics; School of Dentistry; Grande Rio University (UNIGRANRIO); Rio de Janeiro Brazil
3. Department of Paediatric Dentistry; Rio de Janeiro Federal University; Rio de Janeiro Brazil
4. Department of Restorative Dentistry II; Federal University of Maranhão; São Luis Brazil