1. Division of Endodontics Department of Restorative Dentistry Piracicaba Dental School State University of Campinas – UNICAMP Piracicaba Brazil
2. Department of Oral Biology Institute of Clinical Sciences The University of Birmingham School of Dentistry Birmingham UK
3. Dental Research Division Department of Periodontology Guarulhos University Guarulhos Brazil
4. Department of Oral Sciences Faculty of Dentistry Sir John Walsh Research Institute University of Otago Dunedin New Zealand