1. Department of Oral Diagnosis, Division of Oral Radiology, Piracicaba Dental School, University of Campinas, Piracicaba, Brazil
2. Bachelor of Statistics in progress, Federal University of Espírito Santo, Espírito Santo, Brazil
3. Department of Statistics, Federal University of Espírito Santo, Espírito Santo, Brazil
4. Department of Clinical Dentistry, Federal University of Espírito Santo, Espírito Santo, Brazil