| 摘要 |
This invention pertains to a dental plate providing an enlarged aperture through the molded structural material thereof and a flexible diaphragm, molded into said material, in enclosing relation to the hole. Lever means are provided which is operable, after the dental plate is properly seated in the mouth to, first, expel the air between the dental plate structure and the gingival tissues of the mouth and, second, to selectively create a comfortable degree of partial vacuum between the dental plate and the gingival tissues to hold the dental plate firmly in place. Detent means are provided to lock the lever means in any of a plurality of positions.
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