Dental Trauma (Luxation)

Overview

What is Dental Luxation?

Dental luxation refers to displacement of a tooth from its normal position within the socket without complete removal. Types include concussion, subluxation, lateral luxation, extrusion, and intrusion, each with different treatment approaches.

• Tooth displacement within the socket
• Ranges from minimal to severe displacement
• Most common in anterior teeth
• Often occurs from falls, sports, or accidents
• Prompt treatment improves prognosis

Overview of the Condition

Luxation injuries damage the periodontal ligament, pulp, and sometimes alveolar bone. The severity and direction of displacement determine treatment. Early intervention and proper management can save most luxated teeth and preserve vitality.

References

• NCBI - Dental Trauma
• Dental Trauma Guide

Symptoms and Causes

Symptoms

• Tooth appears displaced or at wrong angle
• Pain, especially when touching tooth
• Tooth mobility (looseness)
• Bleeding from the gums
• Difficulty biting normally
• Tooth may appear shorter (intrusion) or longer (extrusion)
• Sensitivity to touch or temperature
• Swelling around the tooth

Causes

• Falls (most common in children)
• Sports injuries
• Motor vehicle accidents
• Physical altercations
• Bicycle accidents
• Playground injuries
• Objects striking the face

Diagnosis and Treatment Options

Diagnosis

• Clinical examination of tooth position
• Mobility testing
• Percussion testing
• Pulp vitality tests (may be unreliable initially)
• Periapical radiographs
• Assessment for alveolar bone fracture

Treatment by Type

• Concussion: observation, soft diet
• Subluxation: flexible splint 2 weeks, soft diet
• Lateral luxation: reposition, splint 4 weeks
• Extrusion: reposition, splint 2 weeks
• Intrusion: allow re-eruption or orthodontic/surgical repositioning
• Root canal if pulp necrosis develops

Non-Surgical Care

Immediate Care

After luxation injury, the tooth should be repositioned if displaced and stabilized with a flexible splint. The goal is to allow the periodontal ligament to heal while monitoring for pulp vitality.

Post-Treatment Care

1. Soft diet for recommended period
2. Careful brushing with soft brush
3. Chlorhexidine mouthwash
4. Avoid biting on affected tooth
5. Attend all follow-up appointments
6. Watch for signs of infection or pulp death

Surgical Care

When is Surgical Intervention Needed?

Severe intrusions may require surgical or orthodontic repositioning. If pulp necrosis develops, root canal treatment is needed. Severe injuries with poor prognosis may require extraction and replacement.

Surgical Options

• Surgical repositioning of intruded teeth
• Root canal treatment for necrotic pulp
• Extraction if tooth non-salvageable
• Bone grafting if alveolar bone damaged
• Implant or bridge for missing teeth

Anatomy and Affected Areas

Anatomy Overview

Luxation injuries affect the tooth, periodontal ligament (PDL), alveolar bone, and neurovascular supply. The PDL is crucial for healing; its damage determines long-term outcome. The pulp may survive or become necrotic depending on injury severity.

Luxation Types

• Concussion: tender but not mobile or displaced
• Subluxation: mobile but not displaced
• Lateral luxation: displaced to one side, often with bone fracture
• Extrusion: partially pulled out of socket
• Intrusion: pushed into the socket (worst prognosis)

Frequently Asked Questions

Frequently Asked Questions

QuestionAnswerWill my tooth survive?Many luxated teeth can be saved with prompt treatment.How long do I need a splint?Typically 2-4 weeks depending on injury type.Will I need a root canal?Maybe; the pulp is monitored and treated if it dies.When can I eat normally?Soft diet is recommended during splinting period.What signs indicate problems?Increasing pain, discoloration, swelling, or pus.Will my tooth be stable long-term?Most heal well; some may develop root resorption.

Prevention Tips

Prevention Strategies

• Wear mouthguards during contact sports
• Use protective helmets when cycling
• Childproof home environments
• Wear seatbelts in vehicles
• Supervise children at play
• Address protruding teeth with orthodontics

Related Conditions

Related Conditions

• Tooth avulsion (complete displacement)
• Crown or root fracture
• Alveolar bone fracture
• Pulp necrosis
• Root resorption

Long-Term Monitoring

All luxated teeth require long-term follow-up to monitor for pulp necrosis, root resorption, and ankylosis. Follow-up visits are typically at 2 weeks, 4 weeks, 3 months, 6 months, and yearly thereafter.