Canine angle classification identifies malocclusion by classifying the relationship between the upper and lower canine teeth. It is a system used in dentistry to describe the position of the teeth when the mouth is closed, specifically focusing on the canine teeth. Classes of Canine Angle Classification: Class I: The maxillary canine's tip sits between the mandibular canine and the first premolar, indicating a normal canine relationship. Class II: The maxillary canine's tip is positioned mesial (forward) to the normal position, meaning it's positioned in front of the mandibular canine. Class III: The maxillary canine's tip is distal (backward) to the normal position, meaning it's positioned behind the mandibular canine.