Labial – relating to the lips.

Laminate Veneer – a porcelain or composite covering, bonded to the front surfaces to teeth to restore damage and discoloration.

Lateral – to the side.

Lesion – any wound or local degeneration.

Leukoplakia – a medical condition that manifests as hard, rough oral lesions.

Lingual – the surface of the tooth nearest to the tongue; of or relating to the tongue.

Lobe – the center of tooth formation.

Local Anesthesia – relieves the sensation of pain in a small, localized area.