Maria Beatriz D'Arce, Débora Alves Lima, Flávio Henrique Aguiar, Gláucia Maria Ambrosano, Egberto Munin, José Roberto Lovadino
PURPOSE: To evaluate the efficacy of tooth bleaching with high concentration agents, varying the catalyst sources and exposure times. MATERIALS AND METHODS: Stained human third molar fragments were randomized and placed into 8 groups (n = 5). G1: Whiteness HP Maxx (FGM, Joinville, SC, Brazil) 35% (HP)/5 min on enamel surface without external catalyst source; G2: HP/15 min without external catalyst association; G3: HP/5 min with Quartz Tungstein Halogen (QTH: Optilux 501C, Demetron/Kerr, Danbury, CT, USA) as a catalyst; G4: HP/15 min with QTH as a catalyst; G5: HP/5 min with LED/laser as a catalyst; G6: HP/15 min with LED/ laser as a catalyst; G7: HP/5 min with ultrasound as a catalyst; G8: HP/15 min with ultrasound as a catalyst...
2012: European Journal of Esthetic Dentistry: Official Journal of the European Academy of Esthetic Dentistry