NSAID

Non steroidal anti-inflammatory drug, often used as a dental analgesic

Nerve

Tissue that conveys sensation, temperature, position information to the brain

Nerve (root) Canal

Dental pulp; the internal chamber of a tooth

Night Guard

Acrylic appliance used to prevent wear and temporomandibular damage caused by grinding or gnashing of the teeth during sleep

Nitrous Oxide

A gas used to reduce patient anxiety

Novocain

Older brand name for a local anesthetic, currently replaced by safer, more effective agents