![]() ![]() Her initial colour was recorded on the vita shade guide and was A3. ![]() Her periodontal health was adequate however she had some calculus build up. The patient had an anterior open bite and two fillings on the lower teeth. The patient’s history was taken and included collating her opinions regarding the cause of her tooth discoloration, her history of allergies and information regarding any past problems with tooth sensitivity.ĭuring the discussion the patient expressed concerns about her tooth discolouration which she had experienced for over five years. This medically fit and well female who is 36 years old attended complaining of discolouration of her teeth. The most important factors in the efficacy of any bleaching treatment are concentration of the bleaching agent and duration of the exposure time. Varying approaches take different amount of times, owing to differences in concentration or exposure time. The mechanism of action is the oxidation of organic pigments or chromogens in the tooth. One of the most common questions raised by dental professionals is 'What bleaching technique works best?' Well, most work because bleach is bleach. Since the introduction of nightguard vital bleaching (tray bleaching) in 1989, tooth whitening has seen a huge rise. Dr Rhona Eskander: Philips Zoom Tooth Whitening Case Study ![]()
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