Espinar, M. J., E. Ricardo, C. Pina-Vaz, M. Pinto, I. Gonzalez, e A. G. Rodrigues. “PRELIMINARY RESULTS OF THE USE OF AN ULTRASONIC EQUIPMENT IN THE TREATMENT OF MODERATE PERIODONTITIS: Clinical and Microbiological Real Time Polimerase Chain Reacion-Based (PCR) Study”. Archives of Oral Research, vol. 5, nº 1, novembro de 2009, doi:10.7213/aor.v5i1.23263.