Q. Hi My teeth have been bleached and are whiter than B1 – they match the first new ‘bleached shade’. I have two teeth that have been cosmetically bonded with B1 resin but these now look ‘yellow’ compared to the others.My dentist says he cannot find a supplier of the composite resin to match the bleached shades. I know cosmetic dentists can obtain bleached shade resin – can you tell me where my dentist can obtain this from. Many thanks