Internal Resorption — Incisor

Why this case matters

Internal resorption expands the canal into an irregular chamber. Treat it early and the tooth is saveable; miss it, and the next presentation is a perforation.

Training outcomes

• Internal resorption radiographic diagnosis
• Warm vertical compaction in irregular canals
• Bioceramic sealer adaptation

Common mistakes this model helps you avoid

• Mistaking internal for external resorption on the film
• Mechanical instrumentation of the irregular chamber
• Inadequate irrigation of undercuts
• Single-cone obturation leaving voids

Suggested training protocol

1. Bi-angulated radiographs to confirm internal origin
2. Chemo-mechanical debridement with ultrasonic activation
3. Calcium hydroxide inter-appointment dressing
4. Thermoplasticized gutta-percha to adapt to irregularities
5. Bioceramic sealer

What a successful exercise looks like

• Complete filling of the resorptive defect
• No voids on multi-angle films
• Arrested lesion at follow-up