[Damage to the remaining teeth from displaced upper canines].

25 patients with 35 retained upper canines were examined by high resolution CT; only 5 patients did not show evidence of damage to the remaining teeth. 8 patients showed resorption related to medial and lateral incisors. 19 teeth were in contact with the crowns of the displaced canines and were therefore liable to damage. The average extent of the resorption was 4.5 mm. Contact between teeth was demonstrable by means of two consecutive CT cuts.