Hi, I'm not a coffee drinker but I drink tea and my teeth were horribly stained before I had them whitened. my dentist warned me not to drink as much after because they would just stain again. I think whitening teeth repeatedly weakens them? Sorry, I can't answer your question though!

I have veneers on two of my front teeth and I'm having my teeth whitened. My veneers were recommended by my dentist to hide a couple of small cracks which whitening wouldn't have hiden...in the cracks the discolouration was worse than the rest of the tooth. I drink coffee and haven't noticed a difference between the discolouration of the veneer teeth and the natural teeth. I'm going to a dentist in Mexico for my tooth whitening because it was so much cheaper than whitening in the UK (I'm having laser) and the dentist didn't mention veneers as an alternative...