A wax-up is a preparatory model used in the planning phase of dental repair. Made of wax or from a digital model, it allows the dentist to see the ultimate result before fabricating the actual restorative. This procedure is critical to assuring the proper fit, form, and aesthetics of crowns, bridges, or dentures. Wax-ups are also an effective tool for patient consultation, letting the dentist show the patient how the final restoration will look and make revisions as needed.