@article{article1240ea20,
title   = {Influence of reverse torque values in abutments with or without internal hexagon indexes},
author = {Cerutti-Kopplin, Daiane and Rodrigues Neto, Dimas João and Valle, Accácio Lins do and Pereira, Jefferson Ricardo},
year = {2014},
doi = {10.1016/j.prosdent.2014.03.004},
journal   = {The Journal of Prosthetic Dentistry}
}