Histopathological evaluation of root canal filling materials for primary teeth - Silva, Lea Assed Bezerra da; Leonardo, Mário Roberto; Oliveira, Daniela Silva Barroso de; Silva, Raquel Assed Bezerra da; Queiroz, Alexandra Mussolino de; Hernández, Patrícia Gatón; Nelson Filho, Paulo (Brazilian Dental Journal, 2010)