What is master cast in dentistry?

mas·ter cast a replica of the prepared tooth surfaces, residual ridge areas, and/or other parts of the dental arch as reproduced from an impression.Click to see full answer. Accordingly, what is a cast in dentistry?Dental casts are accurate, three-dimensional replicas of a patient’s teeth which are made by pouring dental plaster or acrylic into impressions (imprints, or molds) of the teeth, and allowing it to harden.Furthermore, what are the two kinds of custom tray? The two basic types of trays are stock and custom trays. With either type, the tray used for the mandibular impression differs from the maxillary tray because it allows free tongue movement. Furthermore, what is secondary cast? A group of secondary characters who have their own plot threads (potentially interacting with or related to the threads of the main cast). If, however, they didn’t have the information on them, and a new plot thread followed their searching it out, then for the duration of that thread they would be a Secondary Cast.What are custom trays used for?A special tray is an impression tray custom made for an individual patient by a denturist (dental technician), usually made from acrylic, such as polymethyl methacrylate, or shellac. A stock tray is used to make a preliminary impression, from which a model can be cast.