Geographic tongue. Report of a case showing significant reduction in lingual tactile sensitivity.

A case of a 25-year-old white adult female with geographic tongue is reported. A decrease in lingual tactile sensitivity was indicated to exist as measured through mechanical vibration. This decreased lingual sensitivity remained constant over a 10-week interval, even though the patient developed an overall healthier general outlook during this period. The overt symptoms accompanying this condition also changed from day to day, but appeared to have little or no effect on the overall decreased lingual tactile sensitivity.