Treatment of class II furcation defects following guided tissue regeneration or enamel matrix derivative proteins A 12-month comparative clinical study - Barros, Raquel R. M.; Oliveira, Rafael R.; Andrade, Patrícia F.; Novaes Júnior, Arthur Belém; Grisi, Márcio Fernando de Moraes; Souza, Sérgio Luis Scombatti de; Taba Júnior, Mário; Palioto, Daniela Bazan (International Biennial Congress of The International Academy of Periodontology, 2005)