@article{articlebf1919be,
title   = {Calcium hydroxide root canal sealers: evaluation of pH, calcium ion concentration and conductivity},
author = {Silva, Lea Assed Bezerra da and Leonardo, Mário Roberto and Silva, Roberto Santana da and Assed, Sada and Guimarães, Luís Fernando Lopes},
year = {1997},
doi = {10.1111/j.1365-2591.1997.tb00698.x},
journal   = {International Endodontic Journal}
}