| 1. | It was developed from a Boyle-Davis mouth gag, used for tonsillectomy.
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| 2. | Macintosh noted that this mouth gag indirectly elevated the epiglottis and exposed the laryngeal aperture.
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| 3. | Occasionally a cloth over-the-mouth gag is used not to prevent speech but to keep dust and aerosols out of the lungs.
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| 4. | He developed home made mouth gags and door jambs to restrain all patients and staff inside a clinic while he doused them with 16 litres of kerosene.
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| 5. | This is a term for a series of gags over each other; for example, an over-the-mouth gag ( OTM ) over a cleave gag.
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