[1
]Dental Specialty Centre Brazilian Military Police Minas Gerais Brazil
[2
]Department of Endodontics Fluminense Federal University Niterói Brazil
[3
]Department of Endodontics, School of Dentistry Grande Rio University (UNIGRANRIO)
Duque de Caxias Brazil
[4
]Department of Dentistry II Federal University of Maranhão São Luís Brazil