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the-bigger-picture · health-and-living · 18 Nov 2010 · 25 mins listen
Drinking coffee and tea can give one a perk for the day, but has adverse effects on one's teeth. Over time, drinking coffee and tea and consuming other types of food can stain one's teeth, giving them a yellowish-brownish shade. Thus, teeth whitening is increasingly popular as an option to brighten one's smile. Dental Practitioner Dr Lau Lake Koon details its processes and effects.
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