@article{article2536ac67,
title   = {Fracture of abutment screw supporting a cement implant-retained prosthesis with external hexagon connection: a case report with sem evaluation},
author = {Santos, Mariana Diniz Bisi and Pfeifer, Arthur Braga and Silva, Marcos Rogério Pupo and Sendyk, Claudio Luiz and Sendyk, Wilson Roberto},
year = {2007},
doi = {10.1590/s1678-77572007000200015},
journal   = {Journal of Applied Oral Science}
}