Pre-gingival or cervical caries of teeth is diagnosed when the destruction of hard dental tissues affects a part of the tooth near the neck - a slightly narrowed transition of the dental crown to the root, that is, near the very edge of the gum, and often even under it.
A disproportionately large or abnormally wide tongue - macroglossia, as a rule, occurs in children and is considered a fairly rare anomaly. Macroglossia usually means prolonged painless enlargement of the tongue.
A deep bite associated with improper closing of the teeth can adversely affect the function of chewing, speech, lead to increased abrasion of the enamel coating, etc. With some degrees of such a violation, treatment should be mandatory.
Hairy leukoplakia is in no way associated with hair growth on the surface of the skin, but is a disease of the mucous membranes in which the pathological areas are covered with filiform white villi, noticeable only after histological examination.
Deep caries does not appear suddenly, but is the result of ignoring the destruction of the tooth, starting with slightly visible changes in the enamel, the formation of a hollow, and its deepening into hard layers - dentin.