My Tooth Art is extremely thin at 1.1mm, almost like a dental veneer. It is only offered in precious alloys for dental bio-compatibility reasons. Once purchased take it to your local dentist to have it glued onto your tooth. Like an orthodontic bracket the Tooth Art is bonded into position and can be removed at any stage. The Tooth Art is slightly curved and has retention slots/holes of 0.3mm underneath for better adhesion. They cannot be glued on to porcelain/ ceramic cropwn or veneers.. The glue will only stick to natural teeth.