- Mesial - towards the midline of the mouth.
- Incisal / Occlusal - the biting surfaces of the teeth.
- Distal - away from the midline of the mouth.
- Lingual - the side of a tooth touching the tongue.
- Facial / Buccal - the side of a tooth touching the lips or cheeks.
So next time you go to the dentist and you hear her call out, "#11 MFL," you'll have an idea about what she's talking about!