Sometimes the buccal space is reported to be the most commonly involved fascial space by dental abscesses,[1] although other sources report it is the submandibular space.[2] Infections originating in either maxillary or mandibular teeth can spread into the buccal space, usually maxillary molars (most commonly) and premolars or mandibular premolars.[1] Odontogenic infections which erode through the buccal cortical plate of the mandible or maxilla will either spread into the buccal vestibule (sulcus) and drain intra-orally, or into the buccal space, depending upon the level of the perforation in relation to the attachment of buccinator to the maxilla above and the mandible below (see diagrams). Frequently infection spreads in both directions as the buccinator is only a partial barrier.[3] Infections associated with mandibular teeth with apices at a level inferior to the attachment, and maxillary teeth with apices at a level superior to the attachment are more likely to drain into the buccal space.