How long can the effects of whitening last? How can I maintain the lighter shade?
How long the effects of whitening last varies greatly as it depends on several factors such as the initial shade of the teeth, age, lifestyle factors such as whether the patient smokes etc. Generally, it is recommended that a set of whitening trays be made so that the patient can maintain the shade by home whitening. In addition, when in-office whitening is done, it is important to avoid any foods that can stain the teeth for the next 24 hours. Examples include red wine, coffee and other coloured foods.
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