Management of Partially Avulsed Primary Tooth in a 5-Year-Old
For a partially avulsed (extruded) primary tooth in a 5-year-old, perform gentle digital repositioning if the extrusion is minor, but extract the tooth immediately if it is severely extruded (>3 mm) or interferes with the child's bite, followed by immediate dental referral. 1
Initial Assessment
First, determine the severity of the extrusion by examining:
- How far the tooth has been displaced from its normal position
- Whether the child can bite their teeth together normally - ask them to say "cheese" or the letter "e" to visualize occlusion
- Whether the posterior molars can fully interdigitate for proper chewing function
The key distinction is whether this is a minor or severe extrusive luxation, as management differs significantly between the two.
Management Algorithm
Minor Extrusive Luxation
- Gently reposition the tooth back into its socket using digital pressure
- Ensure the tooth does not interfere with occlusion
- Refer immediately to a dentist for stabilization and follow-up 1
Severe Extrusive Luxation (>3 mm displacement)
- Extract the tooth - do not attempt repositioning
- Immediate dental referral is mandatory 1
- Extraction is indicated because severe displacement in primary teeth has poor prognosis and risks damage to the developing permanent tooth
Critical Considerations
Do NOT replant if the tooth is completely avulsed. Primary teeth should never be replanted to avoid damaging the underlying permanent tooth germ 1. This is fundamentally different from permanent tooth management.
Important Pitfalls to Avoid
- Never force repositioning if the tooth interferes with the bite - this indicates extraction is needed
- Do not delay referral - immediate dental consultation is required for all extrusive luxations
- Check for tooth mobility - excessive mobility may indicate root fracture requiring radiographic evaluation 1
Follow-Up Monitoring
After repositioning or extraction, monitor for:
- Pulpal necrosis - tooth may turn gray or develop a parulis (gum boil) adjacent to the root
- Gingival or facial swelling - requires immediate re-referral
- Signs of infection or abscess formation
If tooth discoloration or localized parulis develops after repositioning, refer to dentist within a few days 1.
Special Consideration: Child Abuse Screening
In any child younger than 5 years with dental trauma, consider child abuse as a possible etiology, especially when trauma affects lips, gingiva, tongue, palate, or involves severe tooth injury 1. Document the injury pattern and mechanism carefully.
The guideline evidence is clear and consistent across all sources: the management hinges on displacement severity, with the 3 mm threshold determining whether conservative repositioning or extraction is appropriate 1.