oral shields

or·al shields

removable appliances used in orthodontic treatment, usually placed between the labial and buccal mucosa and the teeth.
Farlex Partner Medical Dictionary © Farlex 2012

or·al shields

(ōrăl shēldz)
Removable appliances used in orthodontic treatment, usually placed between labial and buccal mucosa and teeth.
Medical Dictionary for the Dental Professions © Farlex 2012
References in periodicals archive ?
Snorers who breathe through their mouths can use oral shields to help keep the mouth closed;
ORAL Shields and Helen Armstrong set up CJS Payroll in 1997 to provide locally-based payroll training and consultancy services.
For snorers who breathe through their mouth oral shields help to keep the mouth closed.
This species is very similar to Ophioderma brevispinum (referred to in earlier work), but grows larger and possesses more equal-dimensioned oral shields (five large plates surrounding the mouth).
Examination of the serial sections revealed that they are small and hidden by the outer edge of one of the oral shields. It was found, however, that their position on the body could usually be determined by the slightly greater amount of pigmentation on that oral shield compared to the others, or if the pigmentation were absent, by the dark shadow of the ampullary complex showing through the translucent oral shield [ILLUSTRATION FOR FIGURES 1, 2 OMITTED].
Control animals were treated similarly, but a comparable wound was made through an oral shield on the opposite side of the body from the madreporite.
The primary opening into the system from the exterior is a 10-15 [[micro]meter] diameter pore located in the folded edge of the central genital bursal slit, just under the lip of the oral shield [ILLUSTRATION FOR FIGURE 7 OMITTED].