| 摘要 |
An oral prophylactic device including a peripheral frame constructed of a thick and pliable latex material. The peripheral frame forms a central opening. The peripheral frame includes an upper segment, a lower segment, and opposed side segments in a generally square configuration. The lower segment has an arcuate central portion. The peripheral frame includes four corners each having a flex slot formed therein. A thin layer of latex is disposed loosely within the central opening of the peripheral frame.
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