In a case of erosion of the tongue or of the lining of the lips or cheeks one naturally looks for roughness or inequalities of the teeth. According to Bangai,1 however, who has reported 2 cases, such a condition may be caused by pressure alone on perfectly smooth teeth; he mentioned also that if a tooth is lost the tongue, pressing into the inequality, may cause an erosion. This is especially true of the papillae foliatae (perpendicular folds) on the sides of the tongue just in front of the anterior pillars of the fauces, mentioned by Greenbaum2 as subject to irritation from irregular teeth.
A patient of mine was much worried, and rightfully so, because of an enduring inflammation and swelling in this locality. The teeth of her denture were slightly tipped inward, but they were smooth and well set. Her dentist ascribed her trouble to the tongue
MONTGOMERY DW. INJURIES OF THE MOUTH CAUSED BY THE TEETH. Arch Derm Syphilol. 1940;42(2):333–336. doi:10.1001/archderm.1940.01490140097017
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