Dental trauma frequently affects immature permanent teeth, particularly in children and adolescents. When trauma occurs before complete root development, it often results in teeth with open apices, posing significant clinical challenges.
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✅ Understanding Open Apex in Traumatized Teeth
An open apex is characterized by:
▪️ Incomplete root formation
▪️ Thin dentinal walls
▪️ Wide apical foramen
Traumatic injuries such as luxation, avulsion, or complicated crown fractures may compromise pulpal vitality, interrupting root development and increasing the risk of infection and fracture.
Early and accurate diagnosis is critical to determine prognosis and select the most appropriate therapeutic approach.
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Key diagnostic factors include:
▪️ Type and severity of trauma
▪️ Pulp vitality status
▪️ Stage of root development
▪️ Presence of infection or apical pathology
Radiographic evaluation (periapical radiographs or CBCT when indicated) is essential to assess root length, apical diameter, and periapical status.
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➤ Apexification
Apexification is indicated for non-vital immature teeth and aims to create an apical barrier to allow obturation.
Calcium hydroxide (traditional method)
Mineral trioxide aggregate (MTA) or bioceramic materials (modern approach)
Bioceramic apexification has largely replaced long-term calcium hydroxide due to improved outcomes and reduced treatment time.
➤ Regenerative Endodontic Procedures (REPs)
Regenerative endodontics is currently the preferred approach for many immature teeth with necrotic pulps. Benefits include:
▪️ Continued root maturation
▪️ Increased dentinal wall thickness
▪️ Improved fracture resistance
This approach is supported by AAPD and IADT guidelines, particularly in young patients.
➤ Vital Pulp Therapy in Traumatized Teeth
In cases of reversible pulp damage, procedures such as:
▪️ Partial pulpotomy (Cvek pulpotomy)
▪️ Direct pulp capping
may allow continued root development (apexogenesis) when performed promptly.
📊 Comparative Table: Evidence-Based Management Options for Open Apex Teeth
| Aspect | Advantages | Limitations |
|---|---|---|
| Calcium Hydroxide Apexification | Long history of use, induces apical hard tissue barrier | Long treatment time, increased fracture risk, multiple visits |
| MTA / Bioceramic Apexification | Shorter treatment time, predictable apical seal, biocompatible | No continued root development, higher material cost |
| Regenerative Endodontic Procedures | Promotes root maturation and dentinal thickening | Technique-sensitive, variable outcomes |
| Vital Pulp Therapy | Preserves pulp vitality and allows apexogenesis | Limited to cases with minimal pulpal inflammation |
Recent evidence supports a paradigm shift toward biologically based therapies, particularly regenerative endodontics, for immature teeth with necrotic pulps. While apexification remains a valid option, it does not promote continued root development, which is critical for long-term tooth survival.
Case selection, patient compliance, and clinician expertise remain decisive factors in treatment success.
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▪️ Prioritize pulp vitality preservation whenever possible
▪️ Consider regenerative endodontic procedures as first-line therapy for necrotic immature teeth
▪️ Use bioceramic materials for apexification when regeneration is not feasible
▪️ Ensure long-term follow-up to monitor root development and periapical healing
▪️ Follow IADT and AAPD trauma guidelines strictly
✍️ Conclusion
Management of traumatized teeth with open apices requires an evidence-based, individualized approach. Advances in regenerative endodontics and bioceramic materials have significantly improved clinical outcomes. Early intervention, accurate diagnosis, and adherence to current guidelines are essential to ensure functional and long-lasting results.
📚 References
✔ American Academy of Pediatric Dentistry. (2023). Pulp therapy for primary and immature permanent teeth. The Reference Manual of Pediatric Dentistry.
✔ Diogenes, A., Henry, M. A., Teixeira, F. B., & Hargreaves, K. M. (2013). An update on clinical regenerative endodontics. Endodontic Topics, 28(1), 2–23.
✔ Fouad, A. F., Abbott, P. V., Tsilingaridis, G., et al. (2020). International Association of Dental Traumatology guidelines for the management of traumatic dental injuries. Dental Traumatology, 36(4), 314–330.
✔ Torabinejad, M., & Parirokh, M. (2010). Mineral trioxide aggregate: A comprehensive literature review. Journal of Endodontics, 36(1), 16–27.
✔ American Association of Endodontists. (2021). Clinical considerations for regenerative procedures.
📌 More Recommended Items
► Understanding Pulpal Diseases: Reversible Pulpitis, Irreversible Pulpitis, and Pulp Necrosis in Adults and Children
► Mineral Trioxide Aggregate (MTA) in Pediatric Dentistry: Uses, Benefits, and Clinical Evidence
► Partial Pulpotomy in Pediatric Dentistry: Technique, Benefits, and Key Differences





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