Thnking about teeth whitening? But afriad it’s harmful to your teeth? An interesting fact to start. A recent study said that enamel samples treated with orange juice for 20 minutes over 5 cycles (to simulate daily exposure over 5 days) had a 64% decrease in micro-hardness versus no statistically significant changes in samples treated with 6% hydrogen peroxide (a component of many whitening packages). (Source: Ren Y et al, Effects of Tooth Whitening and Orange Juice on Surface Properties of Dental Enamel, Journal of Dentistry, June 2009, Vol 37, No 6, pg 424-431)
What does this mean for me?
