[Etiology and diagnostics of upper canine tooth retention].

Upper canines have significant esthetical and functional roles in the dental arch. Upper canine retention is a frequent anomaly as the germ develops rather far from its final place. Moreover, the neighboring teeth may narrow the place of the canine because of its late eruption. Impacted canines without treatment may cause severe complications. Impaction of canines can be diagnosed early by clinical and radiological findings, which enables the clinician to perform a complete rehabilitation by successful surgical and orthodontic treatment.