Lingual is the dental word for the side of a tooth that faces the tongue.

In kid words

"Lingual just means the side of your tooth that faces your tongue, right where your tongue rests when your mouth is closed." Touch your tongue gently to the back of your front teeth right now, that spot is the lingual side. Every tooth has one, and it is simply a direction, the same way left and right are directions.

The parent version

Lingual is the anatomical name for the tooth surface facing the tongue, the direct counterpart to buccal, the surface facing the cheek. Dental charting relies on a full set of these surface names so a provider can describe one exact spot on one exact tooth without any guesswork, whether talking with a colleague or writing up notes after a visit.

Like most surface names, lingual points to where something is, not what condition a tooth is in. Hearing it during a routine visit ties to the geography of the mouth, not to a problem.

Where you might hear it at our office

During a cleaning and exam, our team often talks through what they are looking at as they go, tooth by tooth and surface by surface, so lingual might simply be the word that fits whatever they are checking in that moment. Comprehensive exams and growth checks are part of every routine visit, and naming a surface out loud is just part of how our team keeps a visit easy to follow for the family in the room.

Another word that came home from an appointment and did not quite stick can be looked up in the rest of the Kids' Dental Dictionary.

Related words

Buccal. Tongue. Palate.