Method for confirming positions of upper and lower jaws by adopting 3D printing complete denture individual tray
A 3D printing and complete denture technology, which is applied in educational appliances, medical science, dentistry, etc., can solve the problems of low accuracy and efficiency, achieve accurate production, simplify clinical installation and commissioning, and shorten the time of visiting a doctor
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[0028] Firstly, the initial impression is made under the premise of determining the vertical distance. Place the edentulous centric tray used to determine the vertical distance in the patient's mouth, keep the lips moist and supported by a lip support, leave the tray in place for 1-2 minutes, then measure and mark the vertical distance.
[0029] Take out the tray, fill it with alginate impression material, keep the lips moist and make the lips supported by a lip support device, let the patient close their mouth slowly until the marked vertical distance is reached. Wait for the impression material to cure, remove the tray, and the initial impression is made.
[0030] Then scan the initial impression, design and 3D print to make the upper jaw individual tray (1) composite Gothic arch tracing plate (2); the lower jaw individual tray (4) composite Gothic arch guide plate (6), and prepare the prefabricated tracing screws (5) and retaining ring (7).
[0031] Complete the installa...
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