Pharmacotherapy in Pediatric Dentistry: A Clinical Guide

Pharmacotherapy in pediatric dentistry involves the appropriate selection, dosing, administration, and monitoring of medications used to manage pain, infection, inflammation, and procedural anxiety in children.

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Prescribing requires particular care because drug disposition, organ maturation, body weight, medical history, and age-specific safety considerations influence treatment outcomes.

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Weight-based dosing, accurate medication calculations, and evidence-based indications are essential to minimize adverse drug reactions and prevent medication errors. Antibiotics should be reserved for appropriate indications, while definitive dental treatment remains central to managing odontogenic disease.

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✅ Principles of Pediatric Drug Prescribing
Before prescribing, clinicians should assess:

▪️ Body weight in kilograms: Calculate the dose using the recommended mg/kg regimen and verify the maximum single and daily doses.
▪️ Age and medical history: Consider allergies, renal or hepatic impairment, concurrent medications, and relevant contraindications.
▪️ Formulation and concentration: Confirm the concentration of liquid medications and the appropriate measuring device.
▪️ Route and duration: Choose the appropriate formulation and shortest evidence-supported treatment duration.
▪️ Caregiver instructions: Provide clear written directions, dosing intervals, maximum daily doses, and storage precautions.

A calculated weight-based dose must never exceed the recommended maximum for the child's age, weight, indication, or formulation. Doses should be verified against an authoritative pediatric drug reference and local prescribing guidance.

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✅ Common Medications in Pediatric Dentistry
The following table summarizes commonly used medication classes and their principal indications. Actual prescribing decisions depend on the individual patient and current clinical guidelines.

Medication class	Clinical use	Key safety consideration
NSAIDs (e.g., ibuprofen)	Acute dental pain and postoperative inflammation	Assess dehydration, renal disease, gastrointestinal risk, and contraindications.
Acetaminophen (paracetamol)	Pain when NSAIDs are unsuitable or as an adjunct when indicated	Prevent duplicate products and excessive total daily doses; consider hepatic disease.
Antibiotics (e.g., amoxicillin)	Selected bacterial odontogenic infections with systemic involvement or spreading infection	Check allergy history, indication, dose, local guidance, and antimicrobial stewardship.
Local anesthetics (e.g., lidocaine)	Procedural pain control	Calculate the total dose by weight and document the agent, concentration, and amount administered.
Sedative agents	Selected patients requiring pharmacologic behavior guidance	Require appropriate training, patient selection, monitoring, rescue capability, and recovery protocols.

Sources: American Academy of Pediatric Dentistry (AAPD) guidance on analgesia, local anesthesia, antibiotics, and sedation.

✅ Analgesics for Acute Dental Pain
Nonsteroidal anti-inflammatory drugs (NSAIDs), particularly ibuprofen when appropriate, are first-line options for many cases of acute dental pain in children. Acetaminophen (paracetamol) may be used when NSAIDs are contraindicated or combined with an NSAID when pain control is inadequate and the combination is clinically appropriate.
The 2023 evidence-based guideline from the American Dental Association and collaborating institutions supports NSAIDs alone or combined with acetaminophen for temporary toothache management and after dental extractions in children. The certainty of evidence was very low, so treatment should be individualized.

Clinical considerations:
▪️ Use an accurate weight-based dose and verify the maximum dose and interval.
▪️ Avoid ibuprofen or other NSAIDs when contraindicated, including in relevant renal conditions or significant dehydration.
▪️ Prevent accidental acetaminophen overdose by checking combination products and total daily intake.
▪️ Avoid codeine and tramadol in children younger than 12 years for pain management, consistent with FDA restrictions and the cited dental pain guideline.

Analgesics provide symptom control; they do not replace treatment of the underlying dental disease.

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✅ Antibiotics in Pediatric Dentistry
Antibiotics are not routinely indicated for toothache, uncomplicated pulpitis, or a localized infection that can be managed with definitive dental treatment in an otherwise healthy child. Pulpotomy, pulpectomy, drainage, or extraction should be considered according to the diagnosis and restorability of the tooth.
Systemic antibiotics may be indicated when infection spreads beyond the local site, systemic manifestations develop, or specific medical circumstances warrant treatment. Facial swelling accompanied by fever, progressive swelling, trismus, dysphagia, or respiratory difficulty requires urgent assessment; airway or breathing compromise is an emergency.
Amoxicillin is commonly used when an antibiotic is indicated, but selection must account for allergy history, clinical severity, previous antibiotic exposure, local resistance patterns, and applicable guidelines. Antibiotic prophylaxis is a separate decision reserved for selected patients at increased risk of specific complications.

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✅ Local Anesthesia and Sedation
Local anesthesia is fundamental to pain control during pediatric dental procedures. The agent and dose should be selected according to the child's weight, medical history, developmental status, procedure, and any concurrently administered medications.
The AAPD recommends using the lowest effective total dose, documenting the anesthetic administered, and providing postoperative instructions to reduce accidental lip, cheek, or tongue biting. Benzocaine is contraindicated in children younger than 2 years because of the risk of methemoglobinemia.
Sedation is not a substitute for adequate analgesia. When pharmacologic behavior guidance is necessary, pediatric sedation requires presedation evaluation, appropriate monitoring, personnel trained to rescue a child from a deeper-than-intended level of sedation, emergency equipment, and monitored recovery.

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💬 Discussion
The evidence supports a patient-centered, indication-based approach to pediatric pharmacotherapy. Analgesics, antibiotics, local anesthetics, and sedative agents serve distinct clinical purposes and should not be used interchangeably.
Current guidance emphasizes nonopioid analgesics for acute dental pain, judicious antibiotic prescribing, conservative local anesthetic dosing, and strict safety protocols for sedation. Nevertheless, medication recommendations must be interpreted in the context of the child's medical status, clinical diagnosis, and local regulations.
An important limitation is that evidence supporting individual drug regimens varies in certainty. Furthermore, guidelines developed in one country may differ from local formularies or regulatory requirements. Clinical judgment and verification against current pediatric prescribing references remain essential.

✍️ Conclusion
Pharmacotherapy in pediatric dentistry requires accurate weight-based dosing, careful medication selection, and systematic monitoring for adverse effects. NSAIDs and acetaminophen are central to acute pain management, while antibiotics should be restricted to appropriate indications. Safe local anesthesia and sedation depend on patient assessment, dose control, professional training, and emergency preparedness.
Pharmacological treatment should complement, rather than replace, definitive dental care and preventive strategies.

🎯 Clinical Recommendations
▪️ Standardize prescribing: Use a weight-based calculation and independently verify the dose, concentration, dosing interval, and maximum daily amount before issuing a prescription.
▪️ Document clinical justification: Record the indication, relevant contraindications, allergy assessment, and rationale for antibiotics or sedative medication.
▪️ Establish a safety-net plan: Give caregivers written instructions on administration, expected effects, adverse reactions, and when urgent reassessment is necessary.
▪️ Escalate high-risk cases: Seek medical consultation or specialist support when significant comorbidities, complex drug interactions, or advanced infection complicate treatment.

📚 References
✔ American Academy of Pediatric Dentistry. (2025). Useful medications for oral conditions. In The reference manual of pediatric dentistry (2025–2026 ed., pp. 669–677). https://www.aapd.org/research/oral-health-policies--recommendations/useful-medications-for-oral-conditions/
✔ American Academy of Pediatric Dentistry. (2025). Use of local anesthesia for pediatric dental patients. In The reference manual of pediatric dentistry (2025–2026 ed., pp. 407–414). https://www.aapd.org/media/Policies_Guidelines/BP_LocalAnesthesia.pdf
✔ American Academy of Pediatric Dentistry. (2026). Use of antibiotic therapy for pediatric dental patients. The Reference Manual of Pediatric Dentistry, 2026–2027. https://www.aapd.org/research/oral-health-policies--recommendations/use-of-antibiotic-therapy-for-pediatric-dental-patients/
✔ American Academy of Pediatric Dentistry. (2026). Antibiotic prophylaxis for dental patients at risk for infection. The Reference Manual of Pediatric Dentistry, 2026–2027. https://www.aapd.org/research/oral-health-policies--recommendations/antibiotic-prophylaxis-for-dental-patients-at-risk-for-infection/
✔ American Academy of Pediatric Dentistry, & American Academy of Pediatrics. (2025). Guidelines for monitoring and management of pediatric patients before, during, and after sedation for diagnostic and therapeutic procedures. Pediatric Dentistry, 47(6), E100–E128. https://www.aapd.org/globalassets/media/policies_guidelines/bp_monitoringsedation25.pdf
✔ Carrasco-Labra, A., Polk, D. E., Urquhart, O., Aghaloo, T., Claytor, J. W., Dhar, V., et al. (2023). Evidence-based clinical practice guideline for the pharmacologic management of acute dental pain in children: A report from the American Dental Association Science and Research Institute, the University of Pittsburgh School of Dental Medicine, and the Center for Integrative Global Oral Health at the University of Pennsylvania. Journal of the American Dental Association. https://pmc.ncbi.nlm.nih.gov/articles/PMC10910586/

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Open Bite Correction: Orthodontic vs. Surgical Treatment

Open bite correction aims to establish appropriate vertical overlap between opposing teeth while improving occlusal function, facial balance, and long-term stability.

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Anterior open bite is characterized by the absence of vertical overlap between the upper and lower anterior teeth when the posterior teeth are in occlusion.

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Treatment depends on the underlying etiology, the patient's growth status, the severity of the malocclusion, and the relative contribution of dental and skeletal factors.
Orthodontic treatment can correct many dentoalveolar open bites, whereas severe skeletal discrepancies may require orthognathic surgery combined with orthodontics. Skeletal anchorage provides an additional option for selected nongrowing patients.

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🔹 Diagnosis and Treatment Selection
Before selecting a treatment approach, clinicians should determine whether the open bite is primarily dental, skeletal, or multifactorial.

▪️ Dental open bite: May be associated with persistent digit sucking, tongue interposition, abnormal eruption, or dentoalveolar discrepancies.
▪️ Skeletal open bite: May involve increased lower anterior facial height, excessive posterior dentoalveolar development, and unfavorable mandibular plane relationships.
▪️ Functional contributors: Tongue posture, oral habits, and airway-related symptoms may influence treatment planning and stability.

Clinical examination should be complemented by appropriate records, including photographs, dental models or digital scans, and cephalometric assessment when indicated. Habit evaluation and assessment of growth potential are particularly important because correction of the visible dental gap does not necessarily resolve its underlying cause.

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🔹 Orthodontic Approaches

A. Fixed appliances
Braces can correct dentoalveolar open bites through controlled incisor extrusion, arch coordination, and appropriate vertical mechanics. They are useful when tooth position, rather than a major skeletal discrepancy, is the primary concern.

B. Temporary anchorage devices (TADs)
Miniscrews or miniplates can facilitate posterior tooth intrusion. Molar intrusion may permit counterclockwise mandibular autorotation, improving anterior overlap while reducing reliance on incisor extrusion. A 2024 systematic review and meta-analysis reported a mean overbite increase of approximately 3.88 mm with skeletal anchorage, although outcomes vary among patients and protocols.

C. Clear aligners
Aligners may correct selected mild-to-moderate open bites through a combination of dentoalveolar movements and vertical control. However, predictable skeletal correction should not be assumed, and the evidence for long-term stability remains limited.

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🔹 Orthognathic Surgery: When Is It Indicated?
Orthognathic surgery is considered when a significant skeletal discrepancy cannot be adequately corrected through orthodontic tooth movement alone, particularly in nongrowing patients with severe vertical facial disproportion.

Common surgical approaches include:
▪️ Le Fort I maxillary impaction: Repositions the maxilla superiorly, particularly when excessive vertical maxillary development contributes to the open bite.
▪️ Bimaxillary surgery: Combines maxillary repositioning with mandibular surgery when both jaws contribute to the skeletal discrepancy.
▪️ Mandibular repositioning: May be indicated when mandibular position or orientation contributes substantially to the deformity.

Presurgical orthodontics aligns and decompensates the teeth, allowing the underlying skeletal discrepancy to be corrected. Postsurgical orthodontics then refines intercuspation and occlusion. Surgical planning requires collaboration between the orthodontist and oral and maxillofacial surgeon.

🔹 Orthodontic vs. Surgical Treatment: Clinical Comparison

Feature	Orthodontic	Surgical
Best suited for	Dental or selected skeletal cases	Severe skeletal discrepancies
Skeletal correction	Limited; TADs can modify vertical relationships	Direct repositioning of jaw structures
Invasiveness	Generally lower	Major surgery with recovery and surgical risks
Facial profile change	Usually limited	Can address skeletal facial imbalance
Stability	Depends on mechanics, etiology, and retention	Depends on surgical stability, growth, and functional factors

Clinical interpretation: Neither approach is universally superior. Orthodontic camouflage may be appropriate when dental compensation can achieve acceptable function and esthetics. Surgery is more appropriate when the skeletal discrepancy itself requires correction. Skeletal anchorage can bridge the gap for selected patients, but it does not replace surgery in every severe case.

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💬 Discussion
Evidence supports both nonsurgical and surgical strategies, but direct comparisons remain difficult because studies differ in baseline severity, treatment mechanics, outcome measurements, and follow-up duration.
A systematic review published in 2024 found that skeletal anchorage can improve overbite and produce mandibular autorotation through molar intrusion. A 2025 meta-analysis also reported beneficial outcomes with temporary anchorage devices, although substantial heterogeneity limits the precision with which average results can be applied to individual patients.
Surgical treatment can correct the underlying skeletal deformity and improve facial proportions, but it involves greater morbidity and requires coordinated orthodontic treatment. Relapse remains possible after either approach, especially when unfavorable skeletal patterns or contributing functional habits persist. The current evidence therefore favors etiology-driven treatment planning, rather than choosing a technique based solely on the initial size of the open bite.

✍️ Conclusion
Open bite correction requires a diagnosis-driven approach that distinguishes dental compensation from skeletal correction. Fixed appliances and clear aligners are appropriate for selected dentoalveolar cases, while temporary anchorage devices can improve vertical control in suitable nongrowing patients. Severe skeletal open bites may require combined orthodontic and orthognathic surgical treatment.
Long-term success depends on appropriate case selection, control of contributing factors, individualized retention, and monitoring for relapse. No single treatment modality is optimal for every patient.

🎯 Clinical Recommendations
▪️ Establish the skeletal diagnosis before selecting mechanics. Do not rely on overbite measurements alone; evaluate vertical facial proportions, incisor display, and mandibular plane relationships.
▪️ Define the intended tooth movement. Prefer posterior intrusion when vertical control and mandibular autorotation are desirable, rather than relying on incisor extrusion in every case.
▪️ Refer for interdisciplinary assessment when a severe skeletal discrepancy, substantial facial imbalance, or surgical correction is being considered.
▪️ Plan retention from the outset. Monitor overbite, occlusal contacts, and contributing habits after treatment, adapting the retention strategy to the original etiology and relapse risk.

📚 References
✔ Burgos-Lancero, P., Ibor-Miguel, M., Marqués-Martínez, L., Boo-Gordillo, P., García-Miralles, E., & Guinot-Barona, C. (2025). Correction of anterior open bite using temporary anchorage devices: A systematic review and meta-analysis. Journal of Clinical Medicine, 14(14), Article 4958. https://doi.org/10.3390/jcm14144958
✔ Kwon, T.-G., Elnagar, M. H., Shirazi, S., Goben, A. H., Miloro, M., & Han, M. D. (2024). Orthodontic correction of anterior open bite using skeletal anchorage: Systematic review and meta-analysis. International Journal of Oral and Maxillofacial Surgery, 53(5), 393–404. https://doi.org/10.1016/j.ijom.2023.10.031
✔ Obeisi, A. H., Alanazi, M. M., Natto, S. B., Alsalmi, H. A., Alzahrani, A. A., Alotaibi, R. A., Aljari, A. A., Alzahrani, S. B., Alamri, F. B., Mohammed Alghamdi, A. F., & Katib, H. S. (2025). Long-term stability and safety of orthognathic-orthodontic correction for skeletal anterior open bite: A systematic review and evidence appraisal. Cureus, 17(12), Article e98816. https://doi.org/10.7759/cureus.98816
✔ Rossi, M., Giorgetti, R., Lione, R., Pavoni, C., & Cozza, P. (2021). Outcomes and stability of anterior open bite treatment with skeletal anchorage in non-growing patients and adults compared to the results of orthognathic surgery procedures: A systematic review. Journal of Clinical Medicine, 10(23), Article 5682. https://doi.org/10.3390/jcm10235682
✔ Sabbagh, H., et al. (2025). Skeletal and dental open bite treatment using clear aligners and orthodontic miniscrew-anchored fixed appliances in permanent dentition: A systematic review. Journal of the World Federation of Orthodontists, 14(1), 46–63. https://doi.org/10.1016/j.ejwf.2024.09.003

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Pediatric Zirconia Crowns: Benefits and Clinical Use

Pediatric zirconia crowns are prefabricated, tooth-colored restorations used to restore extensively damaged primary teeth. Their popularity has increased because they combine favorable esthetics, high strength, and a smooth surface with good clinical performance.

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They are an alternative to stainless steel crowns, particularly when esthetics are a major concern. However, their use requires careful case selection because zirconia crowns generally require more extensive tooth reduction and cannot be adjusted in the same way as metal crowns.

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Current evidence supports their clinical use, although outcomes vary according to tooth location, comparator restoration, follow-up period, and study quality.

✅ Indications for Pediatric Zirconia Crowns
Prefabricated zirconia crowns may be considered for primary anterior and posterior teeth when full-coronal coverage is indicated.

Common clinical indications include:
▪️ Extensive caries involving multiple surfaces of a primary tooth.
▪️ Significant structural loss following dental trauma.
▪️ Primary teeth requiring full-coronal restoration after pulp therapy, when sufficient tooth structure remains for retention.
▪️ Developmental defects that compromise the integrity of the primary tooth.
▪️ Cases in which esthetic demands favor a tooth-colored restoration.


Zirconia crowns are not automatically indicated for every carious primary tooth. Treatment should be based on the extent of disease, pulp status, restorability, expected time until exfoliation, and the child's clinical needs.

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✅ Advantages and Limitations

Advantages
▪️ Excellent esthetics and natural tooth-like appearance.
▪️ High fracture resistance and color stability.
▪️ Smooth surfaces associated with reduced plaque accumulation.
▪️ Favorable gingival outcomes reported in several clinical studies.
▪️ High parental satisfaction with esthetic restorations.

Limitations
▪️ Greater tooth reduction than that required for stainless steel crowns.
▪️ Limited ability to adjust the crown after manufacture.
▪️ Technique-sensitive placement and the need for passive seating.
▪️ Higher cost in many clinical settings.
▪️ Potential wear of opposing teeth, particularly if the zirconia surface is rough or occlusal contacts are unfavorable.

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✅ Zirconia Crowns vs. Stainless Steel Crowns
The choice between these restorations should balance esthetics, retention, periodontal response, tooth preparation, and cost.

Clinical feature	Zirconia crowns	Stainless steel crowns
Esthetics	Excellent	Limited
Tooth reduction	Greater	Generally less
Retention	Technique-dependent	Generally favorable
Plaque accumulation	Lower in some studies	May be higher
Cost	Usually higher	Often lower

✅ Clinical Technique and Placement
Successful placement depends on appropriate case selection, adequate preparation, and adherence to the manufacturer's instructions.

1. Assess the tooth: Evaluate caries extent, pulp status, remaining tooth structure, occlusion, and expected time until exfoliation.
2. Select the crown: Choose the appropriate size using the specific manufacturer's fitting protocol.
3. Prepare the tooth: Provide the required circumferential and occlusal or incisal reduction, maintaining adequate clearance without unnecessary removal of tooth structure.
4. Verify passive seating: Ensure that the crown seats completely without excessive pressure or interference with adjacent teeth and occlusion.
5. Cement the crown: Use the cement and isolation protocol recommended for the specific crown system.
6. Check the final result: Assess marginal adaptation, occlusion, gingival tissue response, and patient comfort.

Important: Zirconia crowns should not be forced into position or extensively adjusted to compensate for inadequate preparation. Follow-up should assess retention, marginal integrity, gingival health, and wear of opposing teeth.

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💬 Discussion
Evidence published through 2026 indicates that pediatric zirconia crowns are a clinically useful option for restoring primary teeth, particularly when esthetics and restoration durability are priorities.
A 2025 systematic review and meta-analysis by Alrashdi and Alkhuwaiter included 40 studies. It found broadly comparable retention, recurrent caries, and other clinical outcomes between prefabricated zirconia crowns and alternative restorations, with moderate-certainty evidence of reduced plaque retention at 12 months.
A 2026 systematic review and meta-analysis focused on primary anterior teeth found higher retention and fewer restoration failures with zirconia crowns than with composite strip crowns. However, it also identified significantly greater wear of opposing teeth in the zirconia groups. These findings support careful consideration of occlusal effects rather than assuming that superior esthetics necessarily indicate superiority in every clinical outcome.
The principal limitation is that evidence remains heterogeneous across crown designs, clinical protocols, comparators, and follow-up periods. Consequently, zirconia crowns should be considered an alternative rather than a universal replacement for stainless steel crowns or composite strip crowns.

✍️ Conclusion
Pediatric zirconia crowns offer a valuable combination of esthetics, strength, and favorable plaque-related outcomes for selected primary teeth requiring full-coronal coverage. Their limitations include greater tooth reduction, technique-sensitive placement, cost, and possible wear of opposing teeth.
The most appropriate restoration is the one that achieves a predictable clinical result while preserving tooth structure and meeting the child's functional and esthetic needs.

🎯 Clinical Recommendations
▪️ Prioritize case selection: Reserve zirconia crowns for teeth that genuinely require full-coronal coverage and for which sufficient tooth structure can be prepared safely.
▪️ Assess occlusal risk: Examine opposing teeth and occlusal contacts before and after placement, particularly in children with existing tooth wear.
▪️ Choose the restoration individually: Consider zirconia when esthetics are important, but retain stainless steel crowns as a practical option when conservative preparation, cost, or predictable retention is a priority.
▪️ Maintain preventive care: Combine restorative treatment with caries-risk management, oral hygiene instruction, dietary counseling, and periodic clinical review.

These recommendations align with the available comparative evidence and the American Academy of Pediatric Dentistry's guidance on restorative treatment in children.

📚 References
✔ Alrashdi, M., Ardoin, J., & Liu, J. A. (2022). Zirconia crowns for children: A systematic review. International Journal of Paediatric Dentistry, 32(1), 66–81. https://doi.org/10.1111/ipd.12793
✔ Alrashdi, M., & Alkhuwaiter, S. (2025). Clinical outcomes for prefabricated zirconia crowns in primary dentition: A systematic review and meta-analysis. Pediatric Dentistry, 47(5), 312–321. https://pubmed.ncbi.nlm.nih.gov/41121559/
✔ American Academy of Pediatric Dentistry. (2025). Pediatric restorative dentistry. In The reference manual of pediatric dentistry (2025–2026 ed., pp. 473–486). American Academy of Pediatric Dentistry. https://www.aapd.org/media/Policies_Guidelines/BP_RestorativeDent.pdf
✔ Chen, Y., Pu, H., Xu, R., & Zeng, R. (2026). Effectiveness of prefabricated zirconia crowns and resin-bonded composite strip crowns in the restoration of pediatric primary anterior teeth: A systematic review and meta-analysis. BMC Oral Health, 26, Article 369. https://doi.org/10.1186/s12903-026-07759-z
✔ Douf Alzanbaqi, S., Alogaiel, R. M., Alasmari, M. A., Al Essa, A. M., Khogeer, L. N., Alanazi, B. S., Hawsah, E. S., Shaikh, A. M., & Ibrahim, M. S. (2022). Zirconia crowns for primary teeth: A systematic review and meta-analyses. International Journal of Environmental Research and Public Health, 19(5), Article 2838. https://doi.org/10.3390/ijerph19052838

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Fluoride Use in Infants: Safe Dosing and Guidelines

Fluoride use in infants is an important component of early childhood caries prevention. Although primary teeth begin erupting at approximately 6 months of age, preventive measures should start before the first tooth appears.

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Appropriate fluoride exposure helps strengthen enamel, promotes remineralization, and reduces the risk of dental caries.

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The clinical objective is to provide effective topical fluoride while minimizing excessive ingestion, particularly during infancy, when swallowing control is still developing.

✅ Fluoride Toothpaste in Infants
The American Academy of Pediatric Dentistry (AAPD) and the American Dental Association (ADA) recommend using fluoride toothpaste from the eruption of the first primary tooth.

▪️ Children younger than 3 years: Use a smear or rice-grain-sized amount of fluoride toothpaste.
▪️ Fluoride concentration: A toothpaste containing approximately 1,000 ppm fluoride or more is generally recommended for effective caries prevention.
▪️ Brushing frequency: Brush twice daily, particularly before bedtime.
▪️ Supervision: A caregiver should perform or assist with brushing and minimize swallowing.

Fluoride toothpaste should not be withheld solely because an infant cannot spit reliably; the recommended small amount limits ingestion while providing topical protection.

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✅ Fluoride Varnish in Infants
Fluoride varnish is a professionally applied topical treatment recommended for infants beginning when the first primary tooth erupts. The USPSTF recommends application to the primary teeth of all children younger than 5 years, while the frequency of subsequent applications should be guided by caries risk and clinical assessment.

▪️ Common formulation: 5% sodium fluoride varnish, equivalent to approximately 22,600 ppm fluoride.
▪️ Purpose: Enhance enamel resistance to acid dissolution and support remineralization.
▪️ Clinical application: Apply according to the product instructions and professional guidelines, with additional preventive measures for children at elevated caries risk.

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✅ Oral Fluoride Supplements: When Are They Indicated?
Fluoride supplements are not routinely required for every infant. They may be prescribed from 6 months of age when the primary water supply contains insufficient fluoride, after evaluating other fluoride sources and the child's caries risk.

The following table summarizes the American Academy of Pediatric Dentistry (AAPD) supplementation schedule.

Age	Water fluoride <0.3 ppm	Water fluoride 0.3–0.6 ppm	Water fluoride >0.6 ppm
Birth–6 months	0 mg/day	0 mg/day	0 mg/day
6 months–3 years	0.25 mg/day	0 mg/day	0 mg/day

Clinical note: Fluoride supplements should be prescribed only after assessing the drinking water fluoride concentration, other fluoride sources, and individual caries risk. Doses refer to fluoride ion.

✅ Discussion: Balancing Caries Prevention and Fluorosis Risk
Fluoride prevention in infancy requires balancing the benefits of caries reduction against the risk of excessive systemic ingestion during enamel development. Topical fluoride toothpaste and professionally applied varnish are central preventive measures, whereas systemic supplementation depends on the fluoride concentration of the water supply and other sources of exposure.
The evidence supports fluoride varnish for preventing caries in young children and supplements for children aged 6 months or older whose water supply is fluoride-deficient. The USPSTF found a moderate net benefit for both interventions in the populations covered by its recommendations.

✍️ Conclusion
Fluoride use in infants should begin with appropriate preventive care as soon as the first primary tooth erupts. Twice-daily brushing with a rice-grain-sized amount of fluoride toothpaste, professional fluoride varnish, and individualized assessment of systemic fluoride exposure form the foundation of early caries prevention. Supplements should be reserved for infants who meet established clinical criteria.

🎯 Clinical Recommendations
▪️ Assess the fluoride concentration of drinking water before prescribing supplements, including water used to prepare infant formula.
▪️ Document caries risk, existing fluoride exposure, and relevant feeding practices during preventive visits.
▪️ Establish a dental home by the first birthday, or within 6 months of the first tooth erupting, whichever comes first, consistent with AAPD guidance.
▪️ Educate caregivers to store fluoride products securely and dispense only the recommended toothpaste quantity.

📚 References
American Academy of Pediatric Dentistry. (2025). Fluoride therapy. In The reference manual of pediatric dentistry (pp. 372–378). https://www.aapd.org/globalassets/media/policies_guidelines/bp_fluoridetherapy.pdf
American Dental Association. (n.d.). Fluoride: Topical and systemic supplements. Retrieved October 24, 2026, from https://www.ada.org/resources/ada-library/oral-health-topics/fluoride-topical-and-systemic-supplements
US Preventive Services Task Force. (2021). Screening and interventions to prevent dental caries in children younger than 5 years: US Preventive Services Task Force recommendation statement. JAMA, 326(21), 2172–2178. https://doi.org/10.1001/jama.2021.20007

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Utility Arch in Mixed Dentition: Uses and Clinical Guide

The utility arch in mixed dentition is a fixed orthodontic appliance used to control anterior tooth position and modify the vertical relationship between anterior and posterior teeth.

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Commonly associated with the Ricketts Bioprogressive Therapy, it can be designed to produce incisor intrusion, extrusion, protrusion, or retraction, depending on its configuration and activation.

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During the mixed dentition stage, treatment planning must account for ongoing eruption, root development, anchorage requirements, and the patient's facial growth pattern. The utility arch can provide targeted tooth movement when these factors are carefully evaluated.

🔹 What Is a Utility Arch?
A utility arch is a wire appliance that typically extends from the molar tubes, bypasses the premolar region, and engages the incisors. It is commonly fabricated from rectangular or round orthodontic wire, depending on the intended mechanics and stage of treatment.
Its segmented design allows the clinician to apply forces to the anterior teeth while using the permanent first molars as anchorage units.

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🔹 Main Clinical Indications

Deep bite correction
Intrusion of the incisors may reduce excessive overbite, particularly when the patient's vertical facial pattern and incisor display support this approach.

Anterior tooth positioning
Controlled protrusion or retraction may be indicated to improve incisor inclination and alignment, provided adequate space and anchorage are available.

Vertical control
The appliance can be configured to influence anterior and posterior vertical tooth positions when treating selected developing malocclusions.

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🔹 Utility Arch Biomechanics
The resulting tooth movement depends on wire geometry, activation, force magnitude, and the relationship between the line of action of the force and each tooth's center of resistance. Reciprocal forces and moments act on the anchorage teeth.

The following table summarizes the principal movements.

Movement	Clinical Objective
Intrusion	Reduce excessive incisor overlap in selected deep-bite cases.
Extrusion	Increase anterior tooth eruption or vertical position when indicated.
Protrusion	Move incisors labially to improve their inclination or position.
Retraction	Move incisors lingually when space and anchorage permit.

🔹 Advantages and Limitations

Advantages	Limitations
Targeted control of anterior tooth movement.	Requires accurate wire design and activation.
Can address selected vertical and sagittal dental problems.	Reciprocal forces may cause unwanted molar movement.
Useful during selected interceptive orthodontic treatments.	Excessive forces may increase the risk of root resorption and periodontal complications.

💬 Discussion
The utility arch offers a versatile biomechanical approach to managing selected malocclusions during mixed dentition. Its effectiveness depends on the diagnosis, force system, anchorage control, and growth pattern rather than on the appliance alone.
A randomized controlled trial involving children aged 9–12 years with deep bite and a hypodivergent skeletal pattern found that both a utility arch combined with intermaxillary elastics and a fixed anterior bite plane reduced overbite. However, the bite plane produced a greater reduction in overbite in that study. The findings support the utility arch as a treatment option, not as a universally superior appliance.

✍️ Conclusion
The utility arch in mixed dentition is a valuable fixed orthodontic appliance for selected cases requiring anterior tooth positioning or vertical control. Its clinical success depends on appropriate case selection, controlled biomechanics, and monitoring of anchorage and periodontal responses. It should be selected according to the individual treatment objectives rather than used routinely for every developing malocclusion.

🎯 Clinical Recommendations
▪️ Assess the facial pattern and overbite before prescribing incisor intrusion or posterior extrusion.
▪️ Establish the intended tooth movement and anchorage requirements before activating the wire.
▪️ Monitor incisor inclination, molar position, periodontal health, and signs of unwanted tooth movement at follow-up visits.
▪️ Reassess the force system if the clinical response differs from the intended movement; avoid increasing force indiscriminately.

📚 References
✔ Alsawaf, D. H., & Rajah, N. (2023). Evaluation of efficacy of utility arch with inter-maxillary elastics for treating skeletal deep bite with retroclined upper incisors in the mixed dentition: A clinical randomized controlled trial. The Angle Orthodontist, 93(3), 296–305. https://doi.org/10.2319/072722-520.1
✔ Sharma, K., et al. (2015). Curve of Spee—from orthodontic perspective. Journal of Orthodontic Science, 4(3), 75–79. https://doi.org/10.4103/2278-0203.160232

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Square and Rectangular Archwires in Orthodontics: A Guide

Square and rectangular archwires play an important role in fixed orthodontic treatment, particularly during the stages requiring precise three-dimensional control of tooth movement.

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Unlike round archwires, these wire configurations can engage more surfaces within a bracket slot, facilitating control of torque, angulation, and rotational movements, depending on wire dimensions, bracket design, and engagement.

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Although both cross-sections can provide greater control than round wires under appropriate conditions, their clinical performance depends on the wire material, slot dimensions, ligation, and treatment objectives.
Understanding these factors helps clinicians select archwires more effectively throughout orthodontic treatment.

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🔹 What Are Square and Rectangular Archwires?

Based on Material Used
1	Gold and gold alloys
2	Stainless steel
3	Nickel-titanium (NiTi) alloys
4	Beta-titanium alloys (TMA)
5	Cobalt-chromium-nickel alloys
6	Optiflex archwires

▪️ Square archwires: Have a square cross-section and can provide control in multiple planes when adequately engaged in the bracket slot.
▪️ Rectangular archwires: Have a rectangular cross-section, with different vertical and horizontal dimensions, and are commonly used to improve control of root torque and tooth position during working and finishing stages.

The distinction is not simply geometric. The effective interaction between the wire and bracket slot determines how much movement can be expressed clinically.

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🔹 Stainless Steel Archwire Dimensions

Stainless Steel Archwire Dimensions

Round (in)	Rectangular (in)	Square (in)
.012	.016 × .022	.016 × .016
.014	.017 × .022	.018 × .018
.016	.017 × .025	—
.018	.018 × .025	—
.020	.019 × .025	—
—	.021 × .025	—

Important: Dimensions are expressed in inches and reproduce the supplied reference. Available sizes vary by manufacturer, bracket-slot system, and product line; verify the manufacturer's specifications before clinical use.

🔹 Clinical Applications and Comparison
The choice between square and rectangular archwires depends on the desired tooth movement, bracket-slot dimensions, and mechanical properties of the wire.

Feature	Square Archwires	Rectangular Archwires
Cross-section	Equal height and width	Different height and width
Torque control	Can provide torque control when sufficiently engaged	Often provides greater torque expression at comparable conditions
Clinical application	Selected working or finishing mechanics, depending on the appliance system	Commonly used during working and finishing stages for three-dimensional control
Main limitation	Torque expression depends on dimensions and slot engagement	Slot-wire play, stiffness, and material properties can limit effective control

Note: These are general biomechanical tendencies, not universal rules. Direct comparisons depend on the specific wire-bracket combination.

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🔹 The Importance of Wire-Slot Play
Wire-slot play refers to the angular freedom between an archwire and the bracket slot before the wire contacts the slot walls and begins expressing its full torsional effect.

A larger clearance can delay torque expression, even when a rectangular archwire is used. The effective interaction is influenced by:
▪️ Bracket slot size: 0.018-inch and 0.022-inch systems behave differently.
▪️ Archwire dimensions: Larger cross-sections generally reduce play when other factors are comparable.
▪️ Wire material: Stainless steel, nickel-titanium, and beta-titanium have different mechanical properties.
▪️ Manufacturing tolerances: Actual dimensions and edge bevels may differ from nominal specifications.
▪️ Bracket positioning and ligation: These influence the expression of the prescribed tooth movement.

A 2020 study by Tepedino et al. demonstrated substantial variability in bracket-slot and archwire dimensions, with corresponding effects on theoretical torsional play.

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💬 Discussion
Square and rectangular archwires are important components of fixed orthodontic biomechanics, but cross-sectional shape alone does not determine treatment effectiveness.
Papageorgiou et al. (2016) found that rectangular stainless steel archwires generated higher torque moments than square wires in the tested conventional bracket systems. However, this was an experimental study, and its findings should not be interpreted as proof of superior clinical outcomes in every patient.
Similarly, Archambault et al. (2010), in a systematic review, reported that torque expression varies with wire dimensions, bracket-slot dimensions, and engagement angle. These findings reinforce the importance of selecting archwires according to the intended mechanics rather than relying solely on their geometric classification.
Further clinical research is needed to establish how differences in torque expression translate into long-term tooth positioning and treatment outcomes.

✍️ Conclusion
Square and rectangular archwires provide different biomechanical options for controlling tooth movement during orthodontic treatment. Rectangular archwires commonly offer greater torque expression under comparable conditions, while square archwires may be appropriate in selected systems and treatment stages.
Successful application requires consideration of bracket-slot dimensions, wire material, manufacturing tolerances, and the intended movement. Understanding these variables supports more predictable orthodontic mechanics.

🎯 Clinical Recommendations
▪️ Select archwire dimensions according to the bracket-slot system and the desired biomechanical effect.
▪️ Assess actual torque expression rather than assuming the bracket prescription will be fully transmitted to the teeth.
▪️ Consider wire material, edge bevel, and ligation when evaluating insufficient torque control.
▪️ Before adding compensatory torque bends, assess bracket positioning, wire engagement, and the patient's clinical response.

📚 References
✔ Archambault, A., Lacoursiere, R., Badawi, H., Major, P. W., Carey, J., & Flores-Mir, C. (2010). Torque expression in stainless steel orthodontic brackets: A systematic review. The Angle Orthodontist, 80(1), 201–210. https://doi.org/10.2319/080508-352.1
✔ Papageorgiou, S. N., Sifakakis, I., Doulis, I., Eliades, T., & Bourauel, C. (2016). Torque efficiency of square and rectangular archwires into 0.018 and 0.022 in. conventional brackets. Progress in Orthodontics, 17, Article 5. https://doi.org/10.1186/s40510-016-0118-0
✔ Tepedino, M., Paiella, G., Potrubacz, M. I., Monaco, A., Gatto, R., & Chimenti, C. (2020). Dimensional variability of orthodontic slots and archwires: An analysis of torque expression and clinical implications. Progress in Orthodontics, 21, Article 32. https://doi.org/10.1186/s40510-020-00333-5

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Dexamethasone in Endodontics: Benefits Beyond Injections.

Intracanal dexamethasone is an emerging topic of interest in endodontics because of its potential to modulate inflammation and reduce post-instrumentation pain.

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Unlike systemic corticosteroid therapy, local application aims to deliver an anti-inflammatory agent directly into the root canal system.

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Dexamethasone has been investigated as an intracanal solution and as a component of calcium hydroxide-based medicaments. Related corticosteroid-containing pastes also provide a clinical context for understanding the potential benefits and limitations of local anti-inflammatory therapy.
However, these formulations are not interchangeable, and evidence supporting one preparation cannot automatically be extrapolated to another.

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✅ Why Use Dexamethasone as an Intracanal Medicament?
Dexamethasone is a potent glucocorticoid that suppresses inflammatory mediator production and modulates the host inflammatory response.

In endodontics, its proposed benefits include:
▪️ Reduction of postoperative pain associated with periapical inflammation.
▪️ Modulation of inflammatory responses following instrumentation.
▪️ Potential improvement in patient comfort during interappointment periods.

Importantly, dexamethasone is not an antimicrobial substitute for sodium hypochlorite irrigation, adequate chemomechanical preparation, or other established infection-control procedures.

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✅ Intracanal Dexamethasone: Solutions and Paste Formulations
Two approaches deserve particular attention: direct intracanal application of a corticosteroid solution and incorporation of dexamethasone into an intracanal paste.

Formulation	Potential Purpose	Main Limitation
Intracanal dexamethasone solution	Potential local anti-inflammatory action and postoperative pain control.	Limited clinical evidence and variation in application protocols.
Calcium hydroxide–dexamethasone paste	Combines the intended antimicrobial action of calcium hydroxide with corticosteroid-mediated inflammation control.	Optimal formulation, compatibility, dosage, and clinical indications remain uncertain.
Corticosteroid–antibiotic paste	Combines anti-inflammatory activity with antimicrobial activity, depending on the ingredients.	Antibiotic-specific risks, potential discoloration, allergies, and antimicrobial stewardship concerns.

Clinical note: Ledermix is a corticosteroid–antibiotic paste containing triamcinolone acetonide and demeclocycline, not dexamethasone. Evidence for one formulation should not be extrapolated directly to another.

✅ What Does the Clinical Evidence Show?
A randomized clinical trial by Ghanbarzadegan et al. (2019) evaluated intracanal medicaments in 90 necrotic molars and premolars. The investigators compared calcium hydroxide mixed with saline, calcium hydroxide mixed with 2% chlorhexidine, and calcium hydroxide mixed with dexamethasone.
The calcium hydroxide–dexamethasone group demonstrated lower pain scores than the calcium hydroxide–saline group during the first 24–72 hours. Differences were no longer statistically significant at 96 hours. These findings suggest a possible short-term analgesic benefit, but they do not establish universal superiority or define an optimal formulation.
A separate randomized trial published in 2024 investigated dexamethasone as a final intracanal rinse in patients with symptomatic irreversible pulpitis. The investigators reported better postoperative pain relief than with saline. However, this study evaluated a rinse, not a paste, and its findings should not be treated as direct evidence for sustained intracanal medication.
The broader evidence remains limited by differences in study design, patient selection, formulations, and outcome measurements. Intracanal dexamethasone is promising, but the evidence is insufficient to support routine use in every root canal treatment.

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✅ Safety and Clinical Limitations
Local administration does not eliminate the possibility of adverse effects. Relevant considerations include:

▪️ Potential local immunomodulation and effects on tissue healing.
▪️ Possible systemic exposure, depending on the preparation and amount used.
▪️ Formulation compatibility, stability, and removability.
▪️ The risk of suppressing inflammatory symptoms without adequately controlling infection.

When antibiotics are included in a paste, clinicians must also consider allergies, antimicrobial stewardship, and formulation-specific adverse effects.
Calcium hydroxide remains an established intracanal medicament when an interappointment dressing is indicated. Adding dexamethasone should not be assumed to improve disinfection or long-term healing without stronger comparative evidence.

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💬 Discussion
The clinical interest in intracanal dexamethasone reflects an important distinction in endodontic pharmacology: controlling inflammation is not the same as controlling infection. A corticosteroid may reduce inflammatory symptoms, while successful treatment still depends on adequate microbial control and an effective coronal seal.
Combining dexamethasone with calcium hydroxide is scientifically interesting because the components have different intended functions. Nevertheless, the clinical performance of a combination depends on its formulation, concentration, chemical compatibility, and biological effects. Evidence from a small number of clinical trials cannot establish the safety or effectiveness of all compounded preparations.
The 2024 expert consensus on irrigation and intracanal medication emphasizes that intracanal medicaments are adjuncts to, rather than replacements for, thorough preparation and irrigation. Further randomized clinical trials should evaluate standardized formulations, adverse effects, postoperative pain, and long-term periapical healing.

✍️ Conclusion
Intracanal dexamethasone represents a potential adjunct for managing inflammation and postoperative pain in endodontics. Preliminary clinical evidence supports further investigation of calcium hydroxide–dexamethasone combinations and local corticosteroid application.
However, differences between solutions, compounded pastes, and commercially available corticosteroid–antibiotic preparations must be respected. Until stronger evidence establishes standardized protocols and long-term outcomes, intracanal dexamethasone should be regarded as a promising but insufficiently validated approach rather than a routine replacement for established endodontic medicaments.

🎯 Clinical Recommendations
▪️ Consider intracanal corticosteroid evidence critically and distinguish findings for dexamethasone from those for other glucocorticoids.
▪️ Do not assume that adding dexamethasone to calcium hydroxide improves antimicrobial efficacy or long-term healing.
▪️ Avoid unvalidated compounded formulations when compatibility, stability, dosage, and tissue safety have not been established.
▪️ Prioritize definitive infection control, appropriate case selection, and a durable coronal seal.

📚 References
✔ Ghanbarzadegan, A., Ajami, M., & Aminsobhani, M. (2019). The effect of different combinations of calcium hydroxide as intra-canal medicament on endodontic pain: A randomized clinical trial study. Iranian Endodontic Journal, 14(1), 1–6. https://doi.org/10.22037/iej.v14i1.22815
✔ Moskow, A., Morse, D. R., Krasner, P., & Furst, M. L. (1984). Intracanal use of a corticosteroid solution as an endodontic anodyne. Oral Surgery, Oral Medicine, and Oral Pathology, 58(5), 600–604. https://doi.org/10.1016/0030-4220(84)90086-0
✔ Negm, M. M. (2001). Intracanal use of a corticosteroid-antibiotic compound for the management of posttreatment endodontic pain. Oral Surgery, Oral Medicine, Oral Pathology, Oral Radiology, and Endodontics, 92(4), 435–439. https://doi.org/10.1067/moe.2001.115975
✔ Zou, X., Zheng, X., Liang, Y., Zhang, C., Fan, B., Liang, J., Ling, J., Bian, Z., Yu, Q., Hou, B., Chen, Z., Wei, X., Qiu, L., Chen, W., He, W., Xu, X., Meng, L., Chen, Z., Chen, L., ... Yue, L. (2024). Expert consensus on irrigation and intracanal medication in root canal therapy. International Journal of Oral Science, 16, Article 23. https://doi.org/10.1038/s41368-024-00280-5

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