A. Thanks for your e-mail, my first suggestion with regards to finding a relaible practice for teeth whitening would always be tom listen to recommendations from colleagues, friends and family. If you have exhausted these avenues with little success, I would possibly look for a practice which offers free initial consultations, as this would allow you to meet the dentist and get a feel for the practice you are attending. I would also recommend looking at feedback on the internet, possibly reading patient testimonials on the relevant websites. In respect of the cost of Enlighten Deep Bleaching, prices will vary from practice to practice, but I can inform you that I currently offer this service at a cost of £650. I hope this will be of assistance to you. Kindest Regards.