Incisive canal cysts related to periodontal osseous defects: case reports.

The incisive canal cyst is the most common non-odontogenic cyst of the oral cavity. While the cyst has frequently been described, the relationship between the lesion and adjacent periodontal osseous defects has rarely been reported. This paper describes the occurrence and treatment of incisive canal cysts in two patients with severe adult periodontitis on maxillary incisor teeth.