Intrusion

The tooth has been pressed into its bone socket by the accident. This makes the tooth appear shorter.

Clinical

• Tooth appears shorter
• Wedging in the alveolar bone with metallic percussion sound

Radiological

• Tooth is shifted into the alveolar bone, usually along the axis of the tooth
• Absence of periodontal gap

Therapy

• Reposition
• Splinting for 2-4 weeks
• Systemic administering of Doxycycline
• Root canal treatment as soon as orthograde access can be safely produced (Ledermix for 1 to 2 weeks due to the anti-resorptive effect)

Prognosis

• Unlikely that vitality of the pulp will be maintained in the case of teeth with fully-grown roots (somewhat better prognosis if apex open)
• Resorptions in almost 100% of cases, often infection-related resorptions with inadequate, usually delayed endodontic management!