Evaluation of a 6% hydrogen peroxide tooth whitening gel on enamel and dentine microhardness in vitro. (J Dent. 2004; 32 Suppl 1: 27-34.)
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Collins LZ, Maggio B, Gallagher A, York M, Schafer F.
Safety evaluation of a novel whitening gel, containing 6% hydrogen peroxide and a commercially available whitening gel containing 18% carbamide peroxide in an exaggerated use clinical study. (J Dent. 2004;32 Suppl 1:47-50.)
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