Q. Hi, i have noticed my teeth’s enamel has worn away slightly on the bottom half of my two front teeth leaving grey patches and are quite sensitive. i don’t really want to get veneers as the upper half of my front teeth are in good condition. My dentist put it down to a combination of tetracycline medicine used for a long time, fruit juice and over brushing i was just wondering what the best option would be to repair the grey areas i asked about white fillings placed behind the teeth, but i heard you cant have them if your bottom teeth bite behind your top teeth is this true? and also i have been using home whitening trays will this remove enamel due to acidity? cheers