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- [5] Concentration-dependent effect of bleaching agents on microhardness and roughness of enamel and dentin AMERICAN JOURNAL OF DENTISTRY, 2007, 20 (01): : 31 - 34
- [6] Effect of different peroxide bleaching regimens and subsequent fluoridation on the hardness of human enamel and dentin JOURNAL OF PROSTHETIC DENTISTRY, 2004, 92 (04): : 337 - 342