Hi Alayne - Zoom treatment is great for brightening and whitening teeth under supervision of a qualified dentist. Results are expected to last 12 - 18 months or as long as the patient can maintain - avoid tea/coffee and dark coloured foods as much as possible and smoking is a definite no no for whitened teeth! Trays and gel are a great way to maintain the result of your treatment and can fit around your lifestyle easily. For more information please see our website
http://www.traceybelldental.co.uk/treatments/teeth-whitening/