| Description |
Displacement of the tooth into the alveolar bone. This injury is accompanied by comminution or fracture of the alveolar socket. |
| Visual signs |
The tooth is displaced axially into the alveolar bone. |
| Percussion test |
Usually gives a high metallic (ankylotic) sound. |
| Mobility test |
The tooth is immobile. |
| Sensibility test |
Sensibility test will likely give negative response.
In immature, not fully developed teeth, pulpal revascularization may occur. |
| Radiographic findings |
The periodontal ligament space may be absent from all or part of the root. The cemento-enamel junction is located more apically in the intruded tooth than in adjacent non-injured teeth, at times even apical
to the marginal bone level. |
| Radiographs recommended |
As a routine: Occlusal, periapical exposure and lateral view from the mesial or distal aspect of the tooth in question. If the tooth is totally intruded a lateral exposure is indicated to make sure the tooth has not penetrated the nasal cavity. |