Inclusion Criteria:  Consecutive patients diagnosed with palatally impacted canine with a sagittal position in Zone 2-4 as documented on panoramic radiographs according to the criteria proposed by Ericson and Kurol,1988, planned to start treatment with surgical exposure of the impacted canine. Patients with uni- or bilateral impacted canines are included. In bilateral impaction cases, the more severely positioned impacted canine according to the Zone (Zone 2 - 4) is included in the trial. No restriction of presenting malocclusion Dental developmental stage: Maxillary DS2M1 and DS3M2 according to Bjork. Age not older than 16 years at surgery  Exclusion Criteria:  Agenesis of lateral incisors on the impaction side Peg-shaped lateral incisors on the impaction side Previous orthodontic treatment Subjects with craniofacial deformity/ syndromes Documented learning disability Communication problems related to the language when an interpreter is needed Sagittal position of the impacted canine in Zone 5, according to Ericson and Kurol, documented on panoramic radiographs.