Lateral dislocation

The tooth has been shifted in its bone socket.

Clinical

• Dislocation usually towards oral
• Often "wedged" in this position (ankylotic percussion sound!) or substantially increased mobility in the case of extended alveole

Radiological

• Tooth appears to have been shifted within its alveole with marked dislocation
• The alveole may be extended in the apical area (and simulate an apical lesion)
• Additional fracture in the root area should be ruled out

Therapy

• Repositioning (it is often necessary to loosen the tooth carefully from its wedged-in position using forceps)
• Splinting for approx. 2-4 weeks
• Root canal treatment if regeneration of the pulp appears unrealistic (dislocation > 1-2 mm in the case of a tooth in which the roots are fully grown)

Prognosis

• Vitality of the pulp maintained in > 40% of cases (more favourable prognosis if apex open)
• Increased risk of pulp necrosis in the case of additional, unfilled dentine wounds or exposed pulp
• Transient resorptions in approx. 30% of cases, rarely infection-related resorptions!