What immediate management is recommended for a tooth that has been driven into the gum?

Management of Intrusive Luxation (Tooth Driven Into Gum)

For a primary tooth driven into the gum, observation without intervention is the recommended approach, as the tooth will typically re-erupt spontaneously; however, for a permanent tooth with intrusive luxation, immediate dental referral is required for radiographic assessment and potential surgical repositioning or orthodontic extrusion. 1

Primary Dentition (Ages 2-6 Years)

Immediate Management

• No immediate treatment is indicated for intruded primary teeth 1
• The tooth will typically re-erupt without intervention 1
• Observation is the standard approach for all intruded primary incisors 1

When to Obtain Imaging

• In cases of severe intrusion, an intraoral radiograph is indicated to determine the location or absence of the injured tooth 1
• Radiographic examination helps rule out complete avulsion (tooth may appear missing but is actually severely intruded) 1

Referral Timing

• Immediate referral to a dentist is indicated for more severe intrusions or to confirm the tooth has not been avulsed 1
• If the tooth is not found clinically, radiographic examination can confirm whether it is intruded versus avulsed 1

Important Caveats

• In rare circumstances, the intruded primary tooth may become ankylosed (fused to bone) and require extraction to prevent blocking eruption of the permanent successor 1
• There is potential for damage to the developing permanent tooth germ with any intruded primary tooth 1
• This risk of damage to the underlying permanent tooth is why primary teeth should never be forcibly repositioned 1

Permanent Dentition (Ages 6+ Years)

Immediate Management

• Immediate dental referral is essential for radiographic evaluation and treatment planning 1
• The tooth will need to be stabilized with a flexible splint for 4 weeks after repositioning 1
• Management within 24 hours for pediatric patients or 48 hours for adults is recommended 2

Treatment Options Based on Severity

• Mild intrusion (up to 3 mm): Excellent prognosis; may allow for spontaneous re-eruption with close monitoring 3
• Moderate to severe intrusion (>3-6 mm): Unfavorable prognosis without intervention due to risk of inflammatory resorption and pulp necrosis 3
• Complete intrusion: Requires immediate surgical repositioning 3

Repositioning Strategies

• Immediate surgical repositioning is preferred for severe intrusions, particularly in immature teeth 3
• Orthodontic extrusion is a valid alternative when spontaneous re-eruption fails or is incomplete 4
• The "wait-and-see" strategy should cease when no further spontaneous elongation is observed beyond 2 mm 4

Follow-up Care

• The tooth should be monitored for possible periodontal and pulpal pathology 1
• Root canal therapy may be required within 3 days to 12 weeks for children or 2-12 weeks for adults, depending on pulp vitality 2
• Long-term follow-up is essential to identify pulp necrosis, external resorption, or ankylosis 3

Critical Pitfalls to Avoid

• Never attempt to replant an avulsed primary tooth - this can damage the developing permanent tooth 1
• Do not delay referral - timing is critical for permanent tooth prognosis 2
• Do not assume a "missing" tooth is avulsed - severe intrusion can make the tooth appear absent; radiographic confirmation is mandatory 1
• Avoid rigid splinting - flexible splints are required to allow physiologic tooth movement 1

Determining Tooth Type

If uncertain whether the tooth is primary or permanent:

• Primary maxillary incisors are typically present from 12 months to 6 years of age 1
• Exfoliation of primary maxillary incisors occurs between 5-7 years of age 1
• When in doubt, obtain dental consultation before any intervention 1