The present invention provides a method that uses digital data, such as that obtained from an intraoral scanner, to fabricate a wide range of customized laboratory appliances. The digital data is used to form a negative mold, which is in turn used to make a physical dental model. The negative mold is configured such that it can be flexed, stretched, fractured or disassembled to release the physical dental model. The physical dental model is then used for fabricating an orthodontic laboratory appliance.
