TY - JOUR T1 - Periodontal status and treatment needs of children from 6 to 8 years old in the Santiago Metropolitan Region of Chile JO - Revista Odonto Ciência A1 - Varas, Francisca A1 - Zillmann, Gisela A1 - Muñoz, Andrea A1 - Hassi, José A1 - Yévenes, Ismael A1 - Echeverría, Sonia A1 - Maass, Paula A1 - Quintana, Renata SN - 1980-6523 UL - 10.1590/S1980-65232011000100005 VL - 26 Y1 - 2011 PB - Brasil ER -