It is common to notice brown/yellow staining around the Invisalign attachments if your diet/lifestyle contains the following: tea, coffee, red wine, turmeric and other similar strong coloured foods/drinks. Smoking also causes similar staining. The staining is on the thin tooth coloured resin used to create your attachments. Please be reassured that once your treatment is over, it will all be removed as we polish off all your attachments. If you feel like you can’t wait until then, you can ask your dentist to remove the staining using air abrasion (sand blasting) techniques which would incur a cost. If they do not have the resources to do this then you can call our office and we can quote you to remove it. Please understand that unless you stop having tooth staining substances, the stains will return quickly.