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    • Effect of four over-the-counter tooth-whitening products on enamel microhardness 

      Majeed, Abdul; Grobler, Sias Renier; Moola, Mohamad H.; Oberholzer, Theunis (South African Dental Association, 2011)
      OBJECTIVES: This in vitro study evaluated the effect of four over-the-counter tooth-whitening products on enamel microhardness. METHODS: Fifty enamel blocks were prepared from extracted human molar teeth. The enamel ...