Crown-root fracture with pulp involvement - Diagnostic signs

Definition A fracture involving enamel, dentin, cementum and the pulp.
Visual signs Crown fracture extending below gingival margin. The crown is split into two or more fragments, one of which is mobile.
Percussion test Tenderness to percussion.
Mobility test At least one coronal fragment is mobile. Beause of mobility during mastication there might be transitory pain.
Sensibility test Not reliable in primary teeth. Inconsistent results.
Radiographic findings Apical extension of fracture usually not visible. In laterally positioned fractures, the extent in relation to the gingival margin can be seen.
Radiographs recommended An occlusal exposure.

Dental Trauma Guide 2010 - produced in cooperation with the Resource Centre for Rare Oral Diseases and Department of Oral and Maxillo-Facial Surgery
at the University Hospital of Copenhagen - Last edited the 07-01-2014.