A. Dear Enquirer, Lumineers,or’no prep’veneers as they are known, may or may not be more natural looking compared to other veneers as it depends on the skill level of the dentist that is preparing the teeth and the laboratory technician that is manufacturing the veneers.Veneers will need to be replaced every 10 years or so no matter which ones are fitted, but since the lumineers are very thin, it is important that they are fitted only on a patient where the bite is favourable or else the lumineers will fail. I very rarely see patients in my practice where ‘no prep’ veneers are the treatment of choice as most patients require some level of tooth preparation. I hope this helps, Sunita