Orthokeratinized odontogenic cyst: Report of eight cases and review of literature regarding its malignant transformation.

Orthokeratinized odontogenic cyst (OOC) is an uncommon odontogenic cyst. It has been categorized as a subtype of odontogenic keratocyst (OKC). In 2005, it was classified as a distinct entity.

Challenging Diagnosis of Severe Bilateral Cervicofacial Subcutaneous Emphysema following Root Perforation in a Maxillary Lateral Incisor: A Case Report.

Cervicofacial subcutaneous emphysema (CFSE) is a rare complication. CFSE may happen following some dental procedures including root canal therapy and is caused by unintentional entry of air into potential spaces of head and neck. In the current report, a case of extensive bilateral subcutaneous emphysema -following the root perforation of a maxillary anterior tooth- is presented.