| 摘要 |
<p>The invention features a thermal impression tray that associates water and air with its operation. It concerns an impression tray for washing teeth and protecting them from diseases. It is characterised in that it functions in closed circuit. It is constituted by a peripheral membrane (3) spread over the impression tray (4) circumference to ensure its airtightness and impermeability with the subjacent tissues. Two ducts (1 and 2) emerging from its handle carry the air and water sprays required for its proper functioning. It functions by means of air pressure, and a system for evacuating used water (9), connected on the surgical suction side, ensures its elimination. The invention is useful in dentistry.</p> |
