Laminate

Thin plastic or porcelain veneer produced in a dental laboratory and then bonded to a tooth

Laughing Gas

Nitrous oxide; odorless inhalation agent that produces relative analgesic (sedation); reduces anxiety and creates a state of relaxation

Lesion

Injury of bodily tissue due to infection, trauma or neoplasm

Local Anesthesia

Partial or complete elimination of pain sensation, in the immediate vicinity of its application or injection