| 摘要 |
A mouthpiece includes a wall having an anterior section and a plurality of posterior sections. Retaining wings are coupled to the anterior section. The retaining wings conform to the anatomy of the user's labial and buccal vestibule that extends between the user's upper and lower jaws and the interior surfaces of the user's cheeks. The method of using the mouthpiece includes grasping the continuous wall, flexing the retaining wings toward ends of the posterior sections, and inserting the retaining wings into the user's mouth.
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