The canine space (also termed the infraorbital space) is a thin potential space on the face, and is paired on either side.
It is located between the levator anguli oris muscle inferiorly and the levator labii superioris muscle superiorly. This space is in the region of the canine fossa, and infections originating from the maxillary canine tooth may spread to involve the space
The canine space communicates with the buccal space posteriorly.
Maxillary canine and first premolar infection