Barodontalgia is a symptom that reflects a flare up of preexisting sub clinical oral disease.Deep sea divers, Aircrew members and passengers are at increased risk of experiencing barodontalgia due to exposure to increased air pressure.It is important for dentists to understand the etiology and features of barodontalgia in order to prevent it.This article reviews the literature regarding barodontalgia, its etiology, features, and prevention.