Background: This report describes the case where a successful diagnosis of arteriovenous malformation was made who reported with periodontal complaints. Case Description: A thorough periodontal assessment was done along with necessary radiographic and histologic investigations to make an accurate diagnosis and subsequent surgical management was carried out. Literature Review: Arterio venous malformation is a developmental anomaly and the occurrence in mandible is rare. So, any undetected malformation during regular dental procedure like extraction or periodontal surgery can lead to hemorrhagic complications. Clinical Significance: Within the limits of this study, the result demonstrates that a thorough assessment of periodontal clinical signs can help in the diagnosis and management of a rare and potentially life threatening condition like arteriovenous malformation of mandible.

Keywords: Periodontal Pocket; Bleeding on Probing; Arteriovenous Malformation.