A system and method by which an orthodontic appliance is automatically designed and manufactured from digital lower jaw and tooth shape data of a patient provides for preferably scanning a model of the patient's mouth to produce two or three dimensional images and digitizing contours and selected points....http://www.google.ca/patents/US20040115586?utm_source=gb-gplus-sharePatent US20040115586 - Custom orthodontic appliance forming method and apparatus
