Effect of enamel matrix proteins on the treatment of intrabony defects. A slit-mouth randomized controlled trial study - Chambrone, Daniela; Pasin, Ivan Munhoz; Conde, Marina Clemente; Pannuti, Cláudio Mendes; Carneiro, Silvia Rosana Soares; Lima, Luiz Antonio Pugliesi Alves de (Brazilian Oral Research, 2007)