[The restoration of teeth with subgingival fractures].

The authors review the history of forced advancing of teeth and describe 10 patients with 10 upper teeth (3 lateral and 6 central canines and 1 first molar) with root fractures near the alveolar osseous crest which were treated by orthodontic forced advancing of the roots. For this purpose an orthodontic device consisting of an arch, provisional pin with a hook, and elastic traction were used. The rate of tooth advancing and time of adjacent periodontium rehabilitation were measured.