Appraisal "in vitro" of antimicrobial activity photodynamic therapy on Streptococcus mutans over dental biofilm "in situ" - Panhóca, Vitor; Florez, Fernando; Rastelli, Alessandra; Kurachi, Cristina; Tanomaru, Juliane; Bagnato, Vanderlei Salvador (Latin America Optics and Photonics Conference - LAOP, 2012)