Dentigerous Cyst Associated with Impacted Third Molar

A dentigerous cyst is an odontogenic cyst associated with the crown of the impacted or unerupted teeth. Such cyst remains initially completely asymptomatic unless when infected and can be discovered only on routine radiographic examination. Here is a case of dentigerous cyst, present in left mandibular region associated with cortical expansion and facial asymmetry which has been enucleated and the tooth extracted surgically is discussed in present case report.