It is an almost universal practice to use a Davis mouth gag to obtain exposure in performing tonsillectomies and adenoidectomies with the patients under general anesthesia. The Davis mouth gag has many advantages, the foremost of which are excellent exposure, control of tongue and preservation of adequate airway. The greatest disadvantage is the possibility that the gag may loosen or knock out a newly erupted maxillary incisor tooth or a deciduous tooth. Sooner or later one who performs tonsillectomies is faced with the embarrassing situation of explaining Fig. 1.—Newly erupted, poorly supported, central incisors. the loss of an incisor tooth to the parents or the patient. Anterior deciduous teeth are easily detached. Premature loss of one of them may complicate the occlusion and cause a drifting of teeth. Newly erupted permanent teeth have practically no root structure, and they are extremely easy to knock out. The root of a permannent
LLOYD RS, JONES RM. TOOTH GUARD FOR USE WITH DAVIS MOUTH GAG. AMA Arch Otolaryngol. 1950;52(6):960–962. doi:10.1001/archotol.1950.00700030987016
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