Noninvasive pit and fissure sealing: Microtensile bond strength to intact bovine enamel of different pit and fissure sealants in a simplified fissure model - Papacchini, F; Cury, A H; Goracci, C; Chieffi, N; Tay, F R; Polimeni, A (J Adhes Dent, 2006)