@article{articled47ccceb,
title   = {Matrix metalloproteinase expression in teeth with apical periodontitis is differentially modulated by the modality of root canal treatment},
author = {Paula-Silva, Francisco Wanderley Garcia and Silva, Lea Assed Bezerra da and Kapila, Yvonne Lorraine},
year = {2010},
journal   = {Journal Endodontics}
}