Q. My lower front teeth are worn and the dentine is starting to show through. My dentist is proposing to rebuild them (possibly by about 2mm) by using a composite restoration. She also thinks that my teeth could first of all be whitened and the composite coloured to match. I have a buckle filling on three of the teeth. Please, what do you think regarding: (a)Would the fillings have to be re-done to match the new whiter colour? (b)Is the composite strong enough to last any length of time? (c)Is it worthwhile placing veneers in front of the teeth instead of whitening them and then raising the teeth behind the veneer with composite? I would be very interested in your opinion on how to tackle the job. With kind regards .,