Replacement Preparation Teeth with screws, Set of 28 or 32 Teeth made out of melamine. Replaceme made out of melamine. Replacement for D80 & D90 & 200 series typodonts. Crown-anatomical shape, Root-straight, easy to set or remove from typodont. Replacement for Training Models. Used For Dental Practicing Preparation Training Techniques. Anatomically shaped teeth set mounted on a plastic card held in place with wax. Excellent anatomy and ideal for student use. Please specify when ordering, if you need 28 or 32 teeth set. Please be advised : NO-RETURN POLICY ON TEETH.