| 摘要 |
An instructional device for teaching dental x-ray techniques comprises a simulated x-ray machine having simulated x-ray controls and a simulated x-ray cone. It also comprises a simulated mouth, having a simulated mandible and a simulated maxilla, each of which have simulated teeth thereon. The simulated maxilla may be moved relative to the simulated mandible. The simulated x-ray cone is movable relative to the simulated mouth. The device can be used for a substitute for a live patient and an x-ray machine when learning dental x-ray techniques.
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