Pediatric Endodontics: Current Concepts and Techniques

Pediatric endodontics focuses on preserving primary and immature permanent teeth affected by dental caries, trauma, developmental abnormalities, or pulpal and periapical disease.

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Contemporary management has shifted from a predominantly tissue-removal approach toward biologically based pulp therapy, emphasizing preservation of healthy pulp tissue whenever possible.

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Current recommendations distinguish treatment according to pulpal diagnosis, tooth restorability, root development, and the expected lifespan of the tooth.
For primary teeth, evidence increasingly supports indirect pulp treatment and calcium-silicate cement pulpotomy for appropriately selected vital teeth. In immature permanent teeth, maintaining pulp vitality is particularly important because it permits continued root maturation and apexogenesis.

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✅ Pulpal Diagnosis in Children
Accurate diagnosis is the foundation of pediatric endodontic treatment. Clinical history, symptoms, clinical examination, radiographic findings, and, when appropriate, pulp sensibility testing should be interpreted collectively.
In primary teeth, symptoms may be less predictable than in permanent teeth; therefore, clinical and radiographic findings should not be interpreted in isolation. Important findings include spontaneous or lingering pain, abnormal mobility, swelling, sinus tract formation, furcation radiolucency, pathological root resorption, and changes in the supporting tissues.

The principal diagnostic categories include:
▪️ Normal pulp
▪️ Reversible pulpitis
▪️ Symptomatic or asymptomatic irreversible pulpitis
▪️ Pulp necrosis
▪️ Previously treated or previously initiated therapy, when applicable
The treatment objective is not simply to eliminate pain but to control infection and preserve the tooth and surrounding tissues for as long as clinically appropriate.

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✅ Vital Pulp Therapy in Primary Teeth
For primary teeth with normal pulp or reversible pulpitis, contemporary management favors conservative approaches that preserve radicular pulp vitality.

Indirect Pulp Treatment
Indirect pulp treatment (IPT) is particularly useful for deep carious lesions when the pulp is considered vital and there are no clinical or radiographic findings indicating irreversible disease.
Selective caries removal reduces the probability of pulp exposure while allowing the remaining dentin and pulp-dentin complex to maintain biological activity. The 2024 AAPD guideline provides strong evidence supporting IPT for deeply carious primary teeth.

Pulpotomy
A pulpotomy removes the coronal pulp while preserving the radicular pulp. It remains an important treatment for vital primary teeth when caries removal results in exposure and the remaining radicular pulp is considered capable of healing.
Current evidence favors calcium-silicate materials, particularly mineral trioxide aggregate (MTA) and Biodentine, over several traditional pulpotomy medicaments. The AAPD 2024 guideline found higher 24-month success with IPT or calcium-silicate cement pulpotomy compared with several alternative approaches.
Consequently, calcium-silicate cement pulpotomy has become a major contemporary approach in primary-tooth vital pulp therapy.

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✅ Non-Vital Pulp Therapy in Primary Teeth
When a primary tooth presents with irreversible pulpitis or pulp necrosis, treatment generally requires removal of infected or necrotic tissue.

Pulpectomy
Pulpectomy involves removal of the pulp from the entire root canal system, followed by canal debridement, disinfection, and filling with a resorbable material.
Hand and rotary instrumentation can both be used. Evidence reviewed by the AAPD indicates that rotary instrumentation can substantially reduce instrumentation time without demonstrating a significant difference in filling quality or overall treatment success compared with manual instrumentation.
Irrigation is an essential component of canal disinfection. Sodium hypochlorite may be used at appropriate concentrations, but because of its tissue toxicity, extrusion beyond the root apex must be avoided. The final obturation material should be compatible with the physiologic resorption of primary roots.

Lesion Sterilization and Tissue Repair
Lesion sterilization and tissue repair (LSTR) is a non-instrumentation or minimally instrumented approach involving antimicrobial agents. It may have a role in selected primary teeth, particularly when conventional pulpectomy is unfavorable.
However, the evidence indicates that its application should be selective. LSTR may be advantageous in teeth with preoperative root resorption, whereas conventional pulpectomy performs better when roots remain intact. Close clinical and radiographic follow-up is therefore essential.

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✅ Vital Pulp Therapy in Immature Permanent Teeth
The management of immature permanent teeth differs fundamentally from that of primary teeth because preservation of vital pulp tissue can allow continued physiologic root development.

For permanent teeth with normal pulp or reversible pulpitis, contemporary options include:
▪️ Indirect pulp treatment
▪️ Direct pulp capping
▪️ Partial pulpotomy
▪️ Complete pulpotomy
The 2025 AAPD guideline indicates that selective caries removal is strongly recommended for deep caries in permanent teeth with normal pulp or reversible pulpitis. When pulp exposure occurs, calcium-silicate materials may be used for direct pulp capping, partial pulpotomy, or complete pulpotomy.

Partial Pulpotomy
Partial pulpotomy removes a limited portion of inflamed coronal pulp while preserving deeper healthy tissue. It is particularly relevant for traumatic exposures and selected carious exposures.
For traumatic exposures, the Cvek technique removes approximately 1–3 mm of superficial inflamed pulp, or more when necessary to reach healthy tissue. Hemostasis and a biologically compatible pulp-capping material are then required.

Complete Pulpotomy
Contemporary evidence has expanded the potential indications for complete pulpotomy in permanent teeth. In selected teeth with symptoms traditionally associated with irreversible pulpitis, complete pulpotomy may be considered when the pulp remains vital and adequate hemostasis can be achieved.
The 2025 AAPD guideline recommends calcium-silicate materials for vital pulp therapy and emphasizes appropriate hemostasis, with sodium hypochlorite recommended for pulp-hemostasis procedures.

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✅ Apexogenesis, Apexification, and Regenerative Endodontics
The primary biological objective in an immature permanent tooth with vital pulp is apexogenesis, allowing continued root development and thickening of the dentinal walls.
When the pulp is necrotic, conventional treatment may compromise further physiologic root development. Depending on the clinical situation, regenerative endodontic procedures or apexification may therefore be considered.
Regenerative approaches aim to promote continued root maturation and development of the apical region. Treatment selection should consider the stage of root development, infection control, restorability, and the long-term prognosis of the tooth. The current AAPD framework includes apexification and regenerative endodontics among the principal options for non-vital immature permanent teeth.

✅ Contemporary Materials and Techniques

Clinical Situation	Preferred Contemporary Approach	Key Consideration
Deep caries, vital primary tooth	Indirect pulp treatment	Selective caries removal and an effective coronal seal
Pulp exposure in a vital primary tooth	Calcium-silicate pulpotomy	MTA or another appropriate calcium-silicate cement
Necrotic primary tooth	Pulpectomy	Effective disinfection and resorbable obturation
Immature permanent tooth, vital pulp	Vital pulp therapy	Preserve vitality and promote apexogenesis
Traumatic pulp exposure	Partial pulpotomy	Remove inflamed superficial pulp and obtain hemostasis
Necrotic immature permanent tooth	Regenerative endodontics or apexification	Root maturity, infection control, and long-term prognosis

Table based on current AAPD recommendations and contemporary evidence.

✅ Technical Principles for Pediatric Endodontic Procedures
Successful pediatric endodontics depends not only on treatment selection but also on infection control, isolation, tissue preservation, and coronal sealing.

Isolation
Rubber dam isolation should be considered fundamental whenever endodontic treatment is performed. It improves moisture control, reduces microbial contamination, and protects the child from aspiration or ingestion of instruments and materials.

Magnification
Magnification can improve visualization of pulp tissue and facilitate assessment during vital pulp procedures. Its value is particularly relevant when determining the quality of the remaining pulp and controlling hemorrhage.

Hemostasis
In vital pulp therapy, controlled hemorrhage is an important clinical indicator. Persistent bleeding may indicate more extensive inflammation and influence the decision to remove additional pulp tissue or change the treatment approach.

Coronal Seal
A durable coronal restoration is essential because bacterial leakage can compromise otherwise successful pulp therapy. The definitive restoration should provide an effective seal and sufficient structural protection for the expected life of the tooth.

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💬 Discussion
The contemporary concept of pediatric endodontics is increasingly centered on biological preservation rather than routine removal of the entire pulp. This is particularly evident in the growing evidence supporting IPT and calcium-silicate pulpotomy in primary teeth and vital pulp therapy in immature permanent teeth.
The 2024 AAPD guideline found high-certainty evidence favoring IPT and calcium-silicate cement pulpotomy for deeply carious vital primary teeth. It also moved clinical practice further away from several traditional medicaments, including calcium hydroxide as a primary pulpotomy medicament and toward calcium-silicate materials.
At the same time, the 2025 AAPD guideline for permanent teeth reflects an important conceptual change: irreversible pulpitis does not automatically require complete pulpectomy or conventional root canal treatment when the pulp remains clinically viable and the tooth can be appropriately managed. Selected cases may benefit from partial or complete pulpotomy using calcium-silicate materials.
Nevertheless, evidence quality is not uniform across all pediatric endodontic interventions. Treatment decisions should therefore integrate the best available evidence with clinical diagnosis, tooth restorability, root development, infection status, patient cooperation, and long-term prognosis.

🎯 Clinical Recommendations
1. Prioritize biological diagnosis over symptoms alone. Combine history, clinical examination, radiographic findings, and pulp testing when appropriate.
2. Preserve vital pulp tissue whenever predictable healing is possible, particularly in immature permanent teeth where vitality supports continued root development.
3. Consider IPT as a first-line approach for appropriately selected deeply carious vital primary teeth, avoiding unnecessary pulp exposure.
4. When pulpotomy is indicated in a primary tooth, calcium-silicate cements such as MTA or Biodentine should be strongly considered based on current evidence.
5. For necrotic primary teeth, select pulpectomy or carefully indicated LSTR according to root resorption, infection, restorability, and prognosis.
6. In immature permanent teeth, consider partial or complete pulpotomy before conventional root canal treatment when the pulp remains potentially reparable and adequate hemostasis can be achieved.
7. Do not compromise apical development unnecessarily. Preservation of pulp vitality in immature permanent teeth should remain a major treatment objective.
8. Establish an effective coronal seal and schedule clinical and radiographic follow-up, because treatment success depends on both biological management and restoration quality.

✍️ Conclusion
Pediatric endodontics has evolved toward conservative, biologically oriented treatment. Current evidence supports indirect pulp treatment and calcium-silicate pulpotomy as important approaches for selected primary teeth, while vital pulp therapy has an increasingly important role in immature permanent teeth.
The fundamental principle is to match the intervention to the biological condition of the pulp rather than relying exclusively on historical treatment protocols. Accurate diagnosis, strict isolation, effective disinfection, appropriate biomaterials, durable coronal sealing, and systematic follow-up remain essential to achieving predictable outcomes.

📚 References

✔ American Academy of Pediatric Dentistry. (2026). Pulp therapy for primary and immature permanent teeth. In The Reference Manual of Pediatric Dentistry. American Academy of Pediatric Dentistry.
✔ Coll, J. A., Dhar, V., Chen, C.-Y., Crystal, Y. O., Guelmann, M., Marghalani, A. A., AlShamali, S., Xu, Z., Glickman, G. N., & Wedeward, R. (2024). Use of vital pulp therapies in primary teeth 2024. Pediatric Dentistry, 46(1), 13–26.
✔ Coll, J. A., Dhar, V., Chen, C.-Y., et al. (2023). Primary tooth vital pulp treatment interventions: Systematic review and meta-analyses. Pediatric Dentistry, 45(6), 474–546.
✔ Coll, J. A., Vargas, K., Marghalani, A. A., et al. (2020). Use of non-vital pulp therapies in primary teeth. Pediatric Dentistry, 42(5), 337–349.
✔ Coll, J. A., Dhar, V., Guelmann, M., Crystal, Y. O., Chen, C.-Y., Marghalani, A. A., Alshamali, S., Xu, Z., Ather, A., Sabeti, M., & Wedeward, R. (2025). Guideline for use of vital pulp therapy in permanent teeth. Pediatric Dentistry, 47(5), 299–311.
✔ Duggal, M., Gizani, S., Albadri, S., Krämer, N., Stratigaki, E., Tong, H. J., Seremidi, K., Kloukos, D., BaniHani, A., Santamaría, R. M., Hu, S., Maden, M., Amend, S., Boutsiouki, C., Bekes, K., Lygidakis, N., Frankenberger, R., Monteiro, J., Anttonen, V., ... Parekh, S. (2022). Best clinical practice guidance for treating deep carious lesions in primary teeth: An EAPD policy document. European Archives of Paediatric Dentistry, 23(5), 659–666. https://doi.org/10.1007/s40368-022-00718-6
✔ Da Silva, E. J. N. L., et al. (2024). Success of primary teeth pulpotomy using calcium silicate cements: A systematic review and meta-analysis of randomized clinical trials. Pediatric Dentistry, 46(6), 373–395.

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Pulp Exposure in Children: Emergency Treatment Guide

Pulp exposure in children is a time-sensitive clinical finding that may occur during deep caries removal, restorative procedures, or dental trauma.

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The appropriate emergency treatment depends primarily on the pulpal diagnosis, extent and cause of exposure, ability to achieve hemostasis, tooth restorability, root development, and presence of infection.

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Current pediatric guidelines emphasize preserving vital pulp tissue whenever predictable healing is possible. However, pulp exposure should not automatically lead to pulpotomy or extraction. A structured diagnosis is essential to select the least invasive treatment with a reasonable prognosis.

✅ Initial Assessment of Pulp Exposure
The emergency assessment should include:
▪️ History: spontaneous pain, provoked pain, duration, nocturnal pain, trauma, and previous symptoms.
▪️ Clinical examination: caries extent, pulp exposure characteristics, swelling, sinus tract, mobility, tenderness, and restorability.
▪️ Radiographic assessment: periapical or bitewing imaging when indicated to evaluate the depth of the lesion, furcation/periapical changes, root resorption, and the developing permanent successor.
▪️ Pulp assessment: determine whether the pulp appears clinically vital and whether bleeding can be controlled after exposure or tissue removal.
In primary teeth, pulpal diagnosis is particularly challenging because conventional sensibility testing has limited reliability. Therefore, clinical and radiographic findings must be interpreted together rather than relying on a single diagnostic test.

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✅ Emergency Treatment Options

1. Direct Pulp Cap
A direct pulp cap (DPC) may be considered when a small pulp exposure occurs in a tooth with a favorable pulpal diagnosis and adequate conditions for maintaining pulp vitality.
The exposed pulp should be protected with a biocompatible pulp-capping material, followed by an effective coronal seal. Calcium-silicate materials are increasingly used because of their biological properties.
However, the indication for DPC differs between primary and permanent teeth. Contemporary evidence supports DPC more strongly in appropriately selected permanent teeth, whereas its routine use for carious exposures in primary teeth is less predictable.

2. Partial Pulpotomy
A partial pulpotomy removes a limited portion of inflamed coronal pulp while preserving the remaining vital tissue.
This approach is particularly valuable for traumatic pulp exposures in immature permanent teeth, where maintaining vitality allows continued root development and apical maturation. IADT guidelines recommend partial pulpotomy for complicated crown fractures with pulp exposure in primary teeth when preservation of the pulp is appropriate, while treatment should be adapted to the child's age, cooperation, and clinical circumstances.

3. Full Pulpotomy
Pulpotomy is one of the principal emergency treatments for a vital primary tooth with pulp exposure when the coronal pulp is inflamed but the radicular pulp remains suitable for treatment.
The contemporary AAPD guideline supports pulpotomy as a vital pulp therapy for primary teeth with appropriate pulpal status. Calcium-silicate-based materials, including mineral trioxide aggregate (MTA), are important contemporary options. The 2024 AAPD guideline specifically recommends against calcium hydroxide as the pulpotomy medicament for primary teeth with deep caries lesions.
A key clinical determinant is hemostasis. Failure to obtain adequate control of pulpal bleeding after appropriate tissue removal should prompt reassessment of the diagnosis and treatment plan rather than simply proceeding with definitive coverage.

4. Pulpectomy or Root Canal Treatment
When the pulp is necrotic or irreversibly diseased, vital pulp therapy is no longer the appropriate treatment.
For a restorable primary tooth, pulpectomy may be indicated when there are clinical or radiographic findings consistent with irreversible pulpitis or necrosis. For permanent teeth, conventional root canal treatment may be required depending on root development and the biological status of the pulp.
In immature permanent teeth, preservation of vitality should remain a priority whenever feasible because it supports continued root maturation and dentinal wall development.

5. Extraction
Extraction should be considered when the tooth is non-restorable, has an unfavorable prognosis, presents extensive pathological root resorption, or cannot be predictably treated because of its clinical condition.
In primary teeth, treatment planning must also consider the stage of exfoliation, space requirements, occlusion, and the developing permanent successor.

✅ Emergency Decision-Making

Clinical Situation	Preferred Approach
Small exposure, favorable vital pulp, permanent tooth	Direct pulp cap or partial pulpotomy
Traumatic exposure in immature permanent tooth	Partial/full pulpotomy to preserve vitality
Vital primary tooth with suitable coronal pulp	Pulpotomy
Primary tooth with necrotic or irreversibly diseased pulp	Pulpectomy
Non-restorable tooth or unfavorable prognosis	Extraction
Uncertain diagnosis	Stabilize, diagnose carefully, and refer when necessary

For traumatic exposure of primary teeth, IADT guidance supports partial pulpotomy for complicated crown fractures, while larger exposures may require cervical pulpotomy. In selected cases, definitive treatment can be delayed briefly when rapid referral to a pediatric dental provider is possible.

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✅ Material Selection and Hemostasis
Modern vital pulp therapy increasingly favors calcium-silicate-based biomaterials because of their biocompatibility and bioactive properties. MTA and other hydraulic calcium-silicate cements have demonstrated favorable clinical outcomes, particularly in permanent teeth.
Hemostasis is not merely a technical step; it is an important diagnostic indicator. After appropriate pulp tissue removal, persistent uncontrolled bleeding may indicate more extensive inflammation and should influence treatment selection.
A well-sealed definitive restoration is equally important. Even an appropriately performed pulp therapy can fail if the restoration permits microleakage or bacterial recontamination.

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💬 Discussion
The management of pulp exposure in children has shifted toward biologically based treatment rather than automatically removing all exposed pulp tissue. The current evidence supports a conservative approach when the remaining pulp has the capacity to heal.
For primary teeth, however, clinicians should avoid directly extrapolating evidence from permanent teeth. The 2024 AAPD guideline emphasizes that treatment selection should integrate the pulpal diagnosis, clinical findings, radiographic findings, tooth restorability, and the child's circumstances.
In permanent teeth, particularly immature teeth, preservation of pulp vitality has an additional biological objective: continued root development. Contemporary AAPD recommendations indicate that direct pulp capping, partial pulpotomy, or full pulpotomy using calcium-silicate cement may be considered for selected exposed permanent teeth, including teeth at different stages of root maturation.
Therefore, the emergency objective should not simply be to "cover the nerve." The clinician should determine which pulp tissue remains biologically salvageable and which treatment provides the best opportunity for long-term tooth survival.

🎯 Clinical Recommendations
1. Do not treat pulp exposure as a diagnosis. Establish the pulpal and periapical diagnosis before selecting therapy.
2. Prioritize vital pulp preservation in appropriately selected primary and immature permanent teeth.
3. After pulp exposure, evaluate bleeding control carefully; persistent bleeding should trigger reassessment of the treatment plan.
4. Use calcium-silicate-based materials when indicated for contemporary vital pulp therapy.
5. Ensure an immediate, well-sealed definitive restoration whenever clinically appropriate.
6. In primary teeth, always consider the permanent successor, exfoliation timing, restorability, and space implications.
7. For traumatic exposures, follow established IADT trauma protocols and arrange appropriate follow-up.
8. When diagnosis, cooperation, restorability, or prognosis is uncertain, early referral to a pediatric dentist or endodontist may provide the safest approach.

✍️ Conclusion
Pulp exposure in children requires rapid but biologically guided decision-making. Direct pulp capping, partial pulpotomy, full pulpotomy, pulpectomy, and extraction each have specific indications. Current evidence increasingly supports vital pulp therapy and minimally invasive treatment when the remaining pulp has healing potential. Accurate diagnosis, effective hemostasis, appropriate biomaterials, and a durable coronal seal remain the principal determinants of successful emergency management.

📚 References

✔ American Academy of Pediatric Dentistry. (2024). Use of vital pulp therapies in primary teeth 2024. Pediatric Dentistry, 46(1), 13–26.
✔ American Academy of Pediatric Dentistry. (2025). Guideline for vital pulp therapy in permanent teeth. Pediatric Dentistry, 47(5), 299–311.
✔ American Academy of Pediatric Dentistry. (2026). Pulp therapy for primary and immature permanent teeth: Indications and objectives. In The Reference Manual of Pediatric Dentistry 2026–2027. American Academy of Pediatric Dentistry.
✔ Day, P. F., Flores, M. T., O'Connell, A. C., Abbott, P. V., Tsilingaridis, G., Fouad, A. F., Cohenca, N., Lauridsen, E., Bourguignon, C., Hicks, L., Andreasen, J. O., Cehreli, Z. C., Harlamb, S., Kahler, B., Oginni, A., Semper, M., & Levin, L. (2020). International Association of Dental Traumatology guidelines for the management of traumatic dental injuries: 3. Injuries in the primary dentition. Dental Traumatology, 36(4), 343–359. https://doi.org/10.1111/edt.12576
✔ Duncan, H. F., Galler, K. M., Tomson, P. L., Simon, S., El-Karim, I., Kundzina, R., Krastl, G., Dammaschke, T., Fransson, H., Markvart, M., Zehnder, M., & Bjørndal, L. (2019). European Society of Endodontology position statement: Management of deep caries and the exposed pulp. International Endodontic Journal, 52(7), 923–934. https://doi.org/10.1111/iej.13080

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Formocresol vs Modern Pulpotomy Agents: Safety & Outcomes

Pulpotomy in primary teeth has evolved significantly, transitioning from traditional medicaments like formocresol (FC) to biocompatible materials such as mineral trioxide aggregate (MTA), Biodentine, and ferric sulfate.

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This article critically evaluates safety concerns, clinical outcomes, and current evidence-based recommendations, highlighting why modern agents are increasingly preferred in pediatric dentistry.

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✅ Introduction
For decades, formocresol pulpotomy was considered the gold standard due to its ease of use and high clinical success rates. However, concerns regarding toxicity, systemic distribution, and potential carcinogenicity have prompted a shift toward bioactive and regenerative materials.
Today, clinicians must balance clinical success, biological compatibility, and long-term safety when selecting pulpotomy agents.

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✅ Current Pulpotomy Agents: An Overview

1. Formocresol (FC)
▪️ Fixative agent causing partial devitalization of pulp tissue
▪️ Antibacterial effect
▪️ Historically high success rates
▪️ Concerns: cytotoxicity and systemic exposure to formaldehyde

2. Mineral Trioxide Aggregate (MTA)
▪️ Bioactive material promoting dentin bridge formation
▪️ Excellent sealing ability
▪️ High biocompatibility

3. Biodentine
▪️ Calcium silicate-based material
▪️ Faster setting than MTA
▪️ Stimulates pulp regeneration

4. Ferric Sulfate
▪️ Hemostatic agent
▪️ Comparable outcomes to FC in some studies

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✅ Clinical Outcomes: Evidence-Based Comparison

Success Rates
▪️ Multiple systematic reviews demonstrate that MTA shows superior clinical and radiographic success compared to formocresol
▪️ Long-term data indicate:
- MTA success ≈ 95%
- Formocresol success ≈ 80%
▪️ Meta-analyses confirm statistically significant better outcomes with MTA in primary molars

Radiographic Findings
▪️ FC associated with:
- Internal root resorption
- Pulp canal obliteration
▪️ MTA shows:
- More favorable healing patterns
- Less pathological resorption

Newer Materials
▪️ Recent randomized trials (2024) show NeoMTA and calcium silicate materials outperform FC in both clinical and radiographic success

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✅ Safety Profile: A Critical Issue

Formocresol
▪️ Contains formaldehyde, classified as a potential carcinogen
▪️ Demonstrates:
- Cytotoxicity to pulp and periapical tissues
- Systemic distribution after application
▪️ Safety concerns remain controversial but significant in modern practice

Modern Agents (MTA, Biodentine)
▪️ Highly biocompatible
▪️ Promote tissue regeneration rather than fixation
▪️ Minimal systemic risk

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💬 Discussion
The shift from formocresol to bioactive materials reflects a broader movement toward minimally invasive and biologically driven dentistry.
While FC still demonstrates acceptable short-term outcomes, its mechanism (tissue fixation and devitalization) contradicts current principles of vital pulp therapy, which emphasize preservation and regeneration.
Modern materials such as MTA and Biodentine not only achieve higher success rates but also align with biological healing processes, making them superior choices.

However, barriers remain:
▪️ Higher cost (especially MTA)
▪️ Technique sensitivity
▪️ Availability in low-resource settings

✍️ Conclusion
Formocresol is no longer the ideal pulpotomy agent in contemporary dentistry. Although it provides acceptable clinical outcomes, modern materials outperform it in both safety and long-term success.
MTA and other calcium silicate materials are currently the gold standard due to their:
▪️ Superior biocompatibility
▪️ Higher success rates
▪️ Regenerative potential

🎯 Clinical Recommendations
▪️ Prefer MTA or Biodentine for pulpotomy in primary teeth
▪️ Avoid routine use of formocresol, especially in pediatric patients
▪️ Consider ferric sulfate as an alternative where cost is a concern
▪️ Follow evidence-based guidelines (AAPD) for vital pulp therapy
▪️ Ensure proper case selection and coronal seal

📚 References

✔ Marghalani, A. A., Omar, S., & Chen, J. W. (2014). Clinical and radiographic success of mineral trioxide aggregate compared with formocresol as a pulpotomy treatment in primary molars: A systematic review and meta-analysis. Journal of the American Dental Association, 145(7), 714–721. https://doi.org/10.14219/jada.2014.36
✔ Ghajari, M. F., Mirkarimi, M., Vatanpour, M., & Kharrazi Fard, M. J. (2008). Comparison of pulpotomy with formocresol and MTA in primary molars: A systematic review and meta-analysis. Iranian Endodontic Journal, 3(3), 45–49.
✔ Wang, Y., Luo, S., Tang, W., Yang, L., Liao, Y., & Liu, F. (2022). Efficacy and safety of mineral trioxide aggregate pulpotomy for caries-exposed permanent teeth in children: A systematic review and meta-analysis. Translational Pediatrics, 11(4), 537–546. https://doi.org/10.21037/tp-22-68
✔ Gisour, E. F., Jahanimoghadam, F., & Karimipour, P. (2024). Clinical and radiographic comparison of primary molar pulpotomy using formocresol, Portland cement, and NeoMTA plus: A randomized controlled clinical trial. Scientific Reports, 14, 29690. https://doi.org/10.1038/s41598-024-81180-w
✔ Holan, G., & Fuks, A. B. (2013). A comparison of pulpotomy using formocresol and ferric sulfate. Pediatric Dentistry. (Referenced in systematic reviews)

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Hall Technique vs Pulpotomy: Decision-Making in Deep Caries

Deep caries management in primary teeth remains a clinical challenge, requiring a balance between biological preservation and long-term success.

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✅ Introduction
The management of deep carious lesions in primary teeth has evolved toward minimally invasive dentistry. Traditional approaches such as pulpotomy aim to remove infected pulp tissue, whereas the Hall Technique seals caries without removal.
Understanding the biological basis, patient factors, and clinical indications is essential for optimal outcomes in pediatric patients.

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✅ Clinical Approaches for Deep Caries Management

Hall Technique
The Hall Technique involves placement of a preformed metal crown (PMC) over a carious primary molar without caries removal, tooth preparation, or local anesthesia.
▪️ Mechanism: Seals cariogenic biofilm, depriving bacteria of nutrients
▪️ Indications:
₀ Asymptomatic teeth
₀ No signs of irreversible pulpitis or abscess
₀ Cooperative or anxious pediatric patients
▪️ Contraindications:
Pulpal pathology (pain, fistula, radiolucency)

Pulpotomy
Pulpotomy is a vital pulp therapy procedure involving removal of the coronal pulp, preserving radicular pulp vitality.
▪️ Mechanism: Elimination of infected pulp tissue and placement of medicament (e.g., MTA, Biodentine)
▪️ Indications:
₀ Deep caries with reversible pulpitis
₀ No radicular pathology
▪️ Contraindications:
₀ Necrosis or irreversible pulpitis

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✅ Comparative Clinical Outcomes
▪️ Success rates: Both techniques demonstrate high success rates (>85–90%) in properly selected cases
▪️ Longevity: Hall Technique shows comparable or superior survival due to reduced technique sensitivity
▪️ Patient acceptance: Higher in Hall Technique due to non-invasive nature
▪️ Operator dependency: Higher in pulpotomy, requiring strict asepsis and technique

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💬 Discussion
The key difference lies in treatment philosophy:

▪️ Hall Technique supports a non-invasive, biofilm control approach
▪️ Pulpotomy follows a surgical intervention model
Recent evidence suggests that sealing caries is as effective as removing it, provided the pulp remains vital. However, accurate diagnosis is critical, as misjudging pulpal status may lead to failure.
Additionally, material selection in pulpotomy (e.g., MTA vs formocresol) significantly influences outcomes, with modern biomaterials showing superior biocompatibility.

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✅ Clinical Decision-Making Framework
Clinicians should consider:

▪️ Pulp status (vital vs inflamed)
▪️ Child behavior and cooperation
▪️ Extent of caries and tooth restorability
▪️ Availability of materials and expertise
The Hall Technique is preferred for asymptomatic cases, while pulpotomy is indicated when pulpal inflammation is evident but reversible.

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✍️ Conclusion
Both Hall Technique and pulpotomy are effective for managing deep caries in primary teeth, but their success depends on case selection and diagnosis. Minimally invasive strategies are increasingly favored, positioning the Hall Technique as a first-line option in suitable cases.

🎯 Recommendations
▪️ Use the Hall Technique in asymptomatic deep caries to preserve pulp vitality
▪️ Reserve pulpotomy for cases with confirmed reversible pulp involvement
▪️ Adopt bioactive materials (MTA, Biodentine) in pulpotomy procedures
▪️ Prioritize accurate diagnosis using clinical and radiographic criteria
▪️ Incorporate minimally invasive dentistry principles into pediatric care

📊 Summary Table: Hall Technique vs Pulpotomy in Deep Caries

Clinical Criteria	Hall Technique	Pulpotomy
Invasiveness	Non-invasive, no caries removal	Invasive, requires pulp removal
Pulp Status Requirement	Vital, asymptomatic pulp	Reversible pulpitis
Anesthesia	Usually not required	Required
Technique Sensitivity	Low	High
Patient Acceptance	High	Moderate
Longevity	High survival rates	High with proper technique
Main Limitation	Not suitable for symptomatic teeth	Risk of failure if diagnosis is incorrect

📚 References

✔ Innes, N. P. T., Evans, D. J. P., & Stirrups, D. R. (2007). The Hall Technique: A randomized controlled clinical trial of a novel method of managing carious primary molars in general dental practice. British Dental Journal, 203(11), 1–9. https://doi.org/10.1038/bdj.2007.1110
✔ Innes, N. P. T., Ricketts, D., & Evans, D. J. (2011). Preformed metal crowns for decayed primary molar teeth. Cochrane Database of Systematic Reviews, (12), CD005512. https://doi.org/10.1002/14651858.CD005512.pub3
✔ American Academy of Pediatric Dentistry. (2023). Guideline on pulp therapy for primary and immature permanent teeth. Pediatric Dentistry, 45(6), 384–392.
✔ Holan, G., & Fuks, A. B. (2013). A comparison of pulpotomy using formocresol and ferric sulfate in primary molars: Long-term results. Pediatric Dentistry, 35(2), 129–134.
✔ Cushley, S., Duncan, H. F., Lappin, M. J., Chua, P., Clarke, M., & Elamin, F. (2020). Efficacy of vital pulp therapy in primary teeth: Systematic review and meta-analysis. International Endodontic Journal, 53(10), 1401–1425. https://doi.org/10.1111/iej.13375

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TheraCal in Pediatric Dentistry: Uses, Benefits & Limits

TheraCal is a light-cured, resin-modified calcium silicate material widely used in pediatric dentistry for vital pulp therapy. Its bioactive properties and ease of handling have positioned it as an alternative to traditional materials such as calcium hydroxide and mineral trioxide aggregate (MTA).

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This article reviews the versions, properties, clinical applications, advantages, and limitations of TheraCal in pediatric patients.

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✅ Introduction
Vital pulp therapy in primary dentition requires materials that promote pulp healing, dentin bridge formation, and bacterial control. TheraCal has emerged as a modern biomaterial combining calcium release and resin-based handling properties, addressing some limitations of conventional pulp-capping agents.
Its application in pediatric dentistry is increasing due to its clinical efficiency and reduced chair time, which are critical factors in managing young patients.

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✅ What Is TheraCal?
TheraCal is a light-cured, resin-modified calcium silicate liner/base designed for direct and indirect pulp capping. It releases calcium ions, promoting mineralization and pulp healing.

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✅ Versions of TheraCal

TheraCal LC (Light-Cured):
▪️ Most commonly used version
▪️ Indicated for pulp capping and as a liner

TheraCal PT (Pulpotomy Treatment):
▪️ Designed for pulpotomy procedures
▪️ Enhanced handling and consistency for coronal pulp therapy

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✅ Properties of TheraCal

▪️ Calcium ion release → stimulates reparative dentin formation
▪️ Alkaline pH → antibacterial effect
▪️ Light-curing capability → immediate setting
▪️ Low solubility compared to calcium hydroxide
▪️ Resin-modified matrix → improved handling

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✅ Clinical Uses in Pediatric Dentistry

▪️ Direct pulp capping
▪️ Indirect pulp capping
▪️ Pulpotomy (TheraCal PT)
▪️ Base/liner under restorations

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✅ Benefits and Advantages

▪️ Reduced chair time due to light curing
▪️ Immediate placement of restorative material
▪️ Improved seal and marginal adaptation
▪️ Enhanced patient cooperation in pediatric settings
▪️ Bioactivity supporting dentin bridge formation

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✅ Limitations

▪️ Presence of resin components may affect biocompatibility
▪️ Lower long-term evidence compared to MTA
▪️ Technique sensitivity (requires proper isolation)
▪️ Potential polymerization shrinkage

📊 Step-by-step Instructions: TheraCal Application in Pediatric Dentistry

Clinical Step	Key Action	Clinical Consideration
Diagnosis and Case Selection	Confirm vital pulp and absence of irreversible pathology	Essential for treatment success
Cavity Preparation	Remove caries and clean the cavity	Avoid pulp overexposure when possible
Isolation	Apply rubber dam	Prevents contamination and moisture interference
Material Placement	Apply TheraCal in a thin layer (≤1 mm)	Do not overfill; ensure adaptation
Light Curing	Cure according to manufacturer instructions	Ensure adequate light intensity
Final Restoration	Place definitive restorative material	Immediate restoration is possible

💬 Discussion
TheraCal represents a significant advancement in pulp therapy materials, particularly in pediatric dentistry where efficiency and ease of use are essential. Compared to traditional calcium hydroxide, it demonstrates superior physical properties and reduced solubility.
However, concerns remain regarding its resin content and long-term biological performance, especially when compared to materials such as MTA, which have extensive clinical validation. Current evidence supports its use in selective cases, but emphasizes the importance of proper case selection and technique.

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✍️ Conclusion
TheraCal is a promising biomaterial in pediatric dentistry, offering bioactivity, convenience, and improved clinical handling. While it is not a complete replacement for traditional materials, it serves as a valuable option in vital pulp therapy, particularly when efficiency is required. Further long-term studies are necessary to fully establish its clinical reliability.

🎯 Clinical Recommendations
▪️ Use TheraCal in well-selected vital pulp cases
▪️ Ensure proper isolation to optimize outcomes
▪️ Prefer TheraCal PT for pulpotomy procedures
▪️ Consider alternative materials (e.g., MTA) in cases requiring proven long-term success
▪️ Follow manufacturer instructions for curing time and thickness

📚 References

✔ Bortoluzzi, E. A., Niu, L. N., Palani, C. D., El-Awady, A. R., Hammond, B. D., Pei, D. D., ... & Tay, F. R. (2014). Cytotoxicity and osteogenic potential of silicate calcium cements as potential protective materials for pulpal revascularization. Dental Materials, 30(5), 475–483. https://doi.org/10.1016/j.dental.2014.02.002
✔ Gandolfi, M. G., Siboni, F., Prati, C. (2012). Properties of a novel light-cured calcium-silicate direct pulp capping material. International Endodontic Journal, 45(6), 571–579. https://doi.org/10.1111/j.1365-2591.2012.02014.x
✔ Hebling, J., Lessa, F. C. R., Nogueira, I., & de Souza Costa, C. A. (2019). Cytotoxicity of resin-based light-cured liners applied in deep cavities. Operative Dentistry, 44(3), E97–E105. https://doi.org/10.2341/17-282-L
✔ American Academy of Pediatric Dentistry. (2023). Pulp therapy for primary and immature permanent teeth. The Reference Manual of Pediatric Dentistry.

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Pulpotomy Materials Comparison: Calcium Hydroxide vs. Mineral Trioxide Aggregate (MTA) in Primary Molars

Pulpotomy is a widely accepted vital pulp therapy for primary molars affected by carious exposure or traumatic injury, aiming to preserve the radicular pulp and maintain tooth function until natural exfoliation.

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The selection of an appropriate pulpotomy material is critical, as it directly influences clinical success, pulpal healing, and long-term prognosis. Among the materials most frequently studied, calcium hydroxide (CH) and mineral trioxide aggregate (MTA) have received significant attention due to their biological properties and historical relevance.

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This article provides an updated and evidence-based comparison of these two materials, emphasizing their performance in primary molar pulpotomy from a contemporary pediatric dentistry perspective.

✅ Biological Rationale of Pulpotomy Materials

Calcium Hydroxide
Calcium hydroxide has been traditionally used in vital pulp therapy due to its high alkalinity, antibacterial effect, and ability to stimulate reparative dentin formation. However, its application in primary teeth has shown limitations, including internal resorption and incomplete dentinal bridge formation, which may compromise treatment outcomes.

Mineral Trioxide Aggregate (MTA)
MTA is a bioactive calcium silicate-based material known for its excellent biocompatibility, sealing ability, and capacity to induce hard tissue formation. In primary molars, MTA promotes favorable pulpal responses, including reduced inflammation and consistent dentin bridge formation, contributing to higher long-term success rates.

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✅ Clinical and Radiographic Outcomes
Multiple randomized clinical trials and systematic reviews have demonstrated that MTA exhibits superior clinical and radiographic success compared to calcium hydroxide in primary molar pulpotomy. While CH may provide acceptable short-term outcomes, MTA consistently shows lower rates of pathological root resorption, pulp necrosis, and treatment failure during follow-up periods extending beyond 12 months.

💬 Discussion
The declining use of calcium hydroxide in primary molar pulpotomy is supported by growing evidence highlighting its biological instability in primary pulp tissue. In contrast, MTA has emerged as the reference material due to its predictable healing response and long-term effectiveness. Despite its higher cost and handling complexity, MTA’s advantages outweigh these limitations, particularly in pediatric patients where preservation of primary teeth is essential for occlusal development and space maintenance.

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✍️ Conclusion
Based on current scientific evidence, mineral trioxide aggregate demonstrates superior clinical performance compared to calcium hydroxide in pulpotomy of primary molars. Its enhanced biocompatibility, sealing properties, and reduced risk of internal resorption make MTA the preferred material for vital pulp therapy in primary dentition.

🎯 Clinical Recommendations
▪️ MTA should be considered the material of choice for pulpotomy in primary molars when available.
▪️ Calcium hydroxide should be used with caution due to its association with internal resorption and lower long-term success.
▪️ Proper case selection, hemorrhage control, and coronal sealing remain critical regardless of the material used.
▪️ Long-term clinical and radiographic follow-up is essential to evaluate pulpal response and tooth integrity.

📊 Comparative Table: Calcium Hydroxide vs. MTA in Primary Molar Pulpotomy

Clinical Parameter	Calcium Hydroxide	Mineral Trioxide Aggregate (MTA)
Biocompatibility	Moderate; may induce chronic inflammation	Excellent; promotes favorable pulpal healing
Dentin bridge formation	Inconsistent and porous	Homogeneous and well-organized
Risk of internal resorption	High incidence reported	Minimal to none
Long-term clinical success	Lower success rates over time	High success rates in long-term follow-up

📚 References

✔ American Academy of Pediatric Dentistry. (2023). Pulp therapy for primary and immature permanent teeth. Pediatric Dentistry, 45(6), 403–412.
✔ Agamy, H. A., Bakry, N. S., Mounir, M. M., & Avery, D. R. (2004). Comparison of mineral trioxide aggregate and formocresol as pulp-capping agents in pulpotomized primary teeth. Pediatric Dentistry, 26(4), 302–309.
✔ Holan, G., Eidelman, E., & Fuks, A. B. (2005). Long-term evaluation of pulpotomy in primary molars using mineral trioxide aggregate or formocresol. Pediatric Dentistry, 27(2), 129–136.
✔ Peng, L., Ye, L., Guo, X., Tan, H., Zhou, X., Wang, C., & Li, R. (2007). Evaluation of formocresol versus mineral trioxide aggregate primary molar pulpotomy: A meta-analysis. Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology, 104(6), e40–e44.

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Pulpotomy Failure in Primary Teeth: Causes, Early Warning Signs, and Evidence-Based Prevention

Pulpotomy is one of the most common vital pulp therapies in pediatric dentistry, aiming to preserve primary teeth affected by deep caries while maintaining function until natural exfoliation.

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Despite its high success rates when properly indicated, pulpotomy failure remains a clinically relevant concern, often leading to pain, infection, or premature tooth loss.

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Understanding why pulpotomies fail, how to identify early warning signs, and how to prevent unfavorable outcomes is essential for long-term success and optimal pediatric oral health.

✅ What Is Pulpotomy Failure?
Pulpotomy failure occurs when inflammation or infection progresses beyond the coronal pulp, affecting the radicular pulp or surrounding tissues. This failure may be clinical, radiographic, or both, and can appear weeks or months after treatment.
Failure does not necessarily indicate poor technique alone—it is often the result of multifactorial biological and restorative factors.

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✅ Main Causes of Pulpotomy Failure

1. Incorrect Case Selection
Performing pulpotomy on teeth with irreversible pulpitis or necrotic pulp significantly increases failure risk.
➤ Common red flags include:
▪️ Spontaneous pain
▪️ Swelling or sinus tract
▪️ Pathologic mobility
▪️ Furcation radiolucency at baseline

2. Inadequate Hemostasis
Failure to achieve proper hemostasis after coronal pulp removal suggests radicular pulp inflammation, which compromises prognosis.

3. Bacterial Microleakage
Poor coronal seal allows salivary and bacterial contamination, leading to reinfection of the pulp tissue.

4. Suboptimal Restorative Coverage
Lack of full coronal coverage, especially in multi-surface lesions, increases the risk of restoration breakdown and microleakage.

5. Material-Related Factors
Although modern materials show improved outcomes, incorrect manipulation or improper placement can reduce their effectiveness.

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✅ Early Clinical and Radiographic Signs of Failure
Early detection is critical to avoid more invasive treatment.

➤ Clinical Signs
▪️ Persistent or recurrent pain
▪️ Gingival swelling or abscess formation
▪️ Increased tooth mobility
▪️ Sensitivity to percussion

➤ Radiographic Signs
▪️ Furcation radiolucency
▪️ Internal or external root resorption
▪️ Widening of the periodontal ligament
▪️ Periapical pathology
Radiographic follow-up is essential, as some failures remain asymptomatic in early stages.

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💬 Discussion
Recent evidence confirms that pulpotomy success is highly dependent on accurate diagnosis, strict asepsis, and durable coronal restoration. Systematic reviews demonstrate that failures are more commonly linked to diagnostic errors and restorative leakage than to the pulpotomy medicament itself.
Modern bioactive materials have improved outcomes; however, they do not compensate for poor case selection or inadequate isolation. Therefore, pulpotomy should be considered a biologically sensitive procedure, not merely a mechanical intervention.

✅ How to Prevent Pulpotomy Failure

Evidence-Based Preventive Strategies
▪️ Strict adherence to case selection criteria
▪️ Achieve complete hemostasis within a few minutes
▪️ Use rubber dam isolation whenever possible
▪️ Ensure hermetic coronal sealing
▪️ Prefer full-coverage restorations in posterior primary teeth
▪️ Schedule regular clinical and radiographic follow-up
Prevention begins before the bur touches the tooth.

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✍️ Conclusion
Pulpotomy failure in primary teeth is largely preventable when evidence-based protocols are followed. Proper diagnosis, meticulous technique, and durable restoration are far more influential than the choice of medicament alone. Early recognition of failure signs allows timely intervention, preserving function and preventing infection-related complications in pediatric patients.

📊 Comparative Table: Key Factors Influencing Pulpotomy Outcomes

Aspect	Advantages	Limitations
Proper case selection	Improves long-term success and pulp healing	Requires accurate clinical judgment
Effective coronal seal	Prevents bacterial microleakage	Dependent on restoration quality
Full-coverage restoration	Enhances durability and tooth survival	Higher cost and chair time
Regular follow-up	Allows early detection of failure	Relies on patient compliance

📚 References

✔ American Academy of Pediatric Dentistry. (2023). Pulp therapy for primary and immature permanent teeth. Pediatric Dentistry, 45(6), 380–392.
✔ Coll, J. A., Seale, N. S., Vargas, K., Marghalani, A. A., Al Shamali, S., & Graham, L. (2017). Primary tooth vital pulp therapy: A systematic review and meta-analysis. Pediatric Dentistry, 39(1), 16–23.
✔ Holan, G., & Fuks, A. B. (2013). A comparison of pulpotomy using ferric sulfate and mineral trioxide aggregate in primary molars. Pediatric Dentistry, 35(1), 13–18.
✔ Peng, L., Ye, L., Tan, H., & Zhou, X. (2007). Evaluation of the formocresol versus mineral trioxide aggregate primary molar pulpotomy: A meta-analysis. Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontology, 103(6), e40–e44. https://doi.org/10.1016/j.tripleo.2007.01.008

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