Only a few percentages of people naturally possess white teeth. Teeth become yellow with aging. Therefore, it becomes essential to maintain good oral hygiene while opting for dental checkups regularly to retain the whiteness. Although slight yellowish teeth are not problematic at all yet it is better to visit a dentist who will check for tooth decay and enamel loss. With natural methods you can whiten the teeth while sitting at home. But dentists at Smile Clinic London, Invisalign...