[Crown lengthening by orthodontic extrusion. Principles and technics].

Forced Eruption by orthodontic means is an effective way of managing subgingival caries and root fractures at the level of the osseous crest or below. It allows the dentist to construct restorations on otherwise hopeless teeth and maintains the biologic distance between the apical portion of the junctional epithelium and the alveolar crest.