| 摘要 |
<p>A denture tray comprises a body of thermoplastic methyl-methacrylate material which is malleable at a temperature which is mouth tolerable and which is substantially rigid at body temperature and a plurality of tooth moulds removably mounted in said tray in a predetermined rotation. A method of manufacturing and fitting a denture plate comprises the steps of; selecting a denture tray from a set of denture trays of the aforementioned type, heating the selected tray to a mouth tolerable temperature at which it is malleable; inserting the selected tray into the mouth of a patient and hand forming and customizing the selected tray around the alveola ridge, allowing the tray to cool to a temperature at which it is stabilized and no longer malleable and thereafter removing the tray from the patient's mouth; border or muscle moulding the selected tray to fit the patient's mouth; lining the tray with final impression material and reinserting the tray into the patient's mouth to form a final impression of the denture base area and thereafter removing the tray from the patient's mouth; forming a bite block and, where necessary, removing posterior tooth moulds from the tray to prevent interference with opposing teeth to obtain the required bite registration; forming a stone model of the final impression in the selected tray; mounting the stone model and the selected tray in an articulator and adjusting the articulator to duplicate the function of the patient's maxilla and mandible and thereafter marking the model to provide an indication of the required vertical dimension and the centre line of the anterior teeth; removing the selected tray bearing the final impression from the stone model to expose the moulded area of the stone model; and forming a wax model of the required denture on the moulded area and inserting the required tooth moulds into the wax model in a conventional manner.</p> |
