We know from CT-studies that in about 50 per cent of cases with ectopically positioned maxillary canines there is associated resorption of the roots of the neighbouring incisors.
The question is the long term fate of these severely resorbed incisors, left in situ. Very little has been written about the long term survival of these incisors with root resorption.
At the Orthodontic department in Jönköping 2 studies have been conducted to investigate what has happened with the resorbed incisor roots. In one of the studies the long term follow- up was more than 10 years, after surgical exposure and orthodontic treatment of the ectopically positioned canines was finished, in all cases.