@article{articleed428a3b,
title   = {Single-tooth implants: a procedure to make a precise, flexible gingival contour on the master cast},
author = {Coelho, A B and Miranda, J E and Pegoraro, L F},
year = {1997},
doi = {10.1016/s0022-3913(97)70093-3},
journal   = {Journal of Prosthetic Dentistry}
}