pH-cycling models for in vitro evaluation of the efficacy of fluoridated dentifrices for caries control: strengths and limitations - Buzalaf, Marília Afonso Rabelo; Hannas, Angélica Reis; Magalhães, Ana Carolina; Rios, Daniela; Honório, Heitor Marques; Delbem, Alberto Carlos Botazzo (Journal of Applied Oral Science, 2010)