Authors: Gerlach, RW Barker, ML Sagel, PA

Citation: Rw. Gerlach et al., Comparative efficacy and tolerability of two direct-to-consumer tooth whitening systems, AM J DENT, 14(5), 2001, pp. 267-272

Authors: Sagel, PA Lapujade, PG Miller, JM Sunberg, RJ

Citation: Pa. Sagel et al., Objective quantification of plaque using digital image analysis, MG ORAL SCI, 17, 2000, pp. 130-143