Tooth fragment reattachment following crown root fracture: a case report.

A 32-year-old man presented with a complicated crown-root fracture of a maxillary lateral incisor. The fracture extended subgingivally, and apical to the alveolar bone crest, invading the biologic width. Flap surgery to expose the fractured root face was performed and the coronal tooth fragment reattached with a dual-cure resin adhesive. Examination six months after treatment revealed periodontal health, good aesthetics and normal function.