International Association of Dental Traumatology Guidelines for the Management of Traumatic Dental Injuries: General Introduction

Board takeaway

• Sequence: Describe a trauma case in this order: dentition → injury and associated injuries → root maturity → urgent treatment → prognosis and follow-up.

• Primary teeth: In primary teeth, protect the successor and account for cooperation and exfoliation.

• Immature permanent teeth: In immature permanent teeth, preserve viable pulp to support root development.

• Avulsion: For permanent avulsion, accident-site care and periodontal-ligament viability strongly affect prognosis.

• Injury-specific guidance: The IADT introduction explains these principles; the injury-specific tables determine treatment and review intervals.

• Surveillance: Successful emergency treatment begins a course of surveillance rather than completing it.

Scope and strength of guidance

• Dental trauma is especially common in children and young adults. Luxation injuries predominate in primary teeth; crown fractures are more commonly reported in permanent teeth.
• The source reports that dental trauma accounts for approximately 5% of injuries, affects about one-quarter of schoolchildren, and has affected the permanent dentition of roughly one-third of adults. Most injuries occur before age 19.
• The primary purpose is immediate or urgent care. Later care may require dental or medical specialists experienced in trauma.
• The 2020 update draws on literature searches through 2019 and multidisciplinary expert judgment. Where published evidence is inconclusive, recommendations reflect working-group consensus reviewed by the IADT board.
• Apply recommendations to the actual clinical circumstances. Consider compliance, financial circumstances, and the immediate and long-term consequences of treatment options or no treatment.
• Following the guideline improves the opportunity for favorable healing but does not guarantee it. This document does not provide a recommendation-by-recommendation evidence grade or a comprehensive treatment textbook.

Primary teeth: protect the developing successor

• Examination and treatment may be difficult because of fear, limited cooperation, and distress affecting both child and parent.
• The injured primary tooth's root apex lies close to the developing permanent tooth germ.
• Severe trauma to primary teeth or alveolar bone can contribute to permanent-tooth malformation, impaction, or eruption disturbances.
• Treatment selection must account for:
  • Child's maturity and ability to cope with the emergency.
  • Expected time until the injured tooth exfoliates.
  • Occlusal relationships.
• Ask about previous injuries: repeated traumatic episodes are common and may influence the eventual outcome.
• These considerations guide individualized care; this introduction does not establish a universal extraction or retention rule.

Permanent teeth: root maturity matters

• Make every effort to preserve the pulp in an immature permanent tooth so root development can continue.
• Immature teeth have substantial healing potential after traumatic pulp exposure, luxation, or root fracture.
• Tooth loss during childhood or adolescence carries consequences over the patient's lifetime.
• Recognize the distinction between immature and mature roots before selecting treatment; obtain specific procedures and intervention criteria from the relevant injury guideline.

Permanent-tooth avulsion: first aid changes prognosis

• Actions taken where the accident occurs are major determinants of the outcome.
• Public education about appropriate first aid for an avulsed permanent tooth is strongly encouraged.
• Assess periodontal ligament viability and root maturity when discussing treatment and prognosis.
• Consult the dedicated avulsion guideline for management. This introduction does not specify dry-time thresholds, storage media, replantation technique, or endodontic timing.

Root maturity changes the preservation goal

Dentition and root maturity change prognosis and treatment goals. Permanent avulsion additionally depends on extraoral time, storage, and PDL viability; this introduction does not replace the dedicated injury protocols.

Patient and parent instructions

• Explain that home care and attendance at review visits contribute to healing.
• Counsel the patient and caregiver about care of the injured teeth, prevention of additional injury, and meticulous oral hygiene.
• The source suggests an antibacterial agent such as alcohol-free chlorhexidine gluconate 0.12% for 1–2 weeks.
• For a young child, the source favors application to the affected area with a cotton swab as an alternative to rinsing.
• Include the caregiver in the explanation and establish a follow-up plan; successful initial treatment alone does not complete trauma care.

Follow-up, splinting, and outcome documentation

• The guideline organizes follow-up activities, core outcomes, and splinting durations by injury and dentition.
• Use the injury-specific schedule and splinting indication; do not apply one duration or review schedule to every traumatic injury.
• The guideline distinguishes a clinical review, splint removal, and a scheduled radiograph: those are separate decisions. Use the primary-injury follow-up table, permanent fracture/luxation note, or avulsion recall schedules for the specific injury.
• The core outcome set distinguishes outcomes relevant across traumatic injuries from outcomes specific to particular injuries.
• Its development used systematic review and a structured consensus process, including decisions about what to measure, how and when to measure it, and who should assess it.
• Standardized documentation supports comparison and combination of studies. Replication across centers is needed because much of the existing trauma literature comes from a single Copenhagen research center.

Splint-duration reference

This summarizes IADT 2020. Associated bone injury and the selected repositioning method can change the plan; consult the injury-specific table rather than treating the duration as an instruction to splint every tooth.

• Outcomes: At review, track pain, tooth retention, discoloration, function/appearance, trauma-related anxiety, quality of life, and visit burden.
• Healing: Add pulp and periodontal healing, restoration quality, realignment, root-fracture healing, or infraocclusion as relevant.
• Primary successor: Primary injuries also require attention to the permanent successor.
• Limit: A comfortable tooth alone is an incomplete outcome assessment.

Common board traps

Answer aloud

What changes your approach when the injured tooth is primary?

Protect the developing successor and choose injury-specific care the child can tolerate.

• Consider proximity of the tooth germ, possible developmental sequelae, cooperation, time to exfoliation, and occlusion.
• Ask about previous trauma; repeated injury may change prognosis.
• The introduction does not establish a universal extraction or retention rule.

Why does an immature permanent tooth deserve special consideration after trauma?

Preserve viable pulp whenever possible to support continued root development.

• Immature teeth have substantial healing potential after exposure, luxation, or root fracture.
• Tooth loss during childhood has lifelong consequences.
• Root maturity must be known before applying the injury-specific treatment table.

What most affects prognosis after permanent-tooth avulsion?

Accident-site actions, periodontal-ligament viability, and root maturity strongly influence prognosis.

• Teach first aid and use the dedicated avulsion guideline for storage, dry-time thresholds, replantation, and endodontic timing.
• Those details are not specified in this introduction.
• Favorable healing cannot be guaranteed even with guideline-concordant care.

How should you select a splint duration after dental trauma?

Use the injury-specific indication and duration, accounting for associated bone injury and treatment method.

• Permanent extrusion/avulsion: usually 2 weeks; subluxation needs a splint only in selected cases.
• Permanent lateral luxation, splinted intrusion, middle/apical root fracture, or alveolar fracture: 4 weeks.
• Permanent cervical root fracture: up to 4 months.
• Primary root fracture/lateral luxation requiring splinting and primary alveolar fracture: 4 weeks.

What must trauma counseling and follow-up include beyond pain relief?

Prognosis, home care, and the scheduled assessment of pulp, periodontal, functional, and patient-reported outcomes.

• Give injury-specific hygiene and antibacterial-care instructions; the introduction describes alcohol-free 0.12% chlorhexidine for 1–2 weeks, applied by cotton swab in young children.
• Prevent further injury and arrange review even when the tooth feels comfortable.
• Record retention, color, function/appearance, anxiety, quality of life, visit burden, and injury-specific healing.
• Primary injuries also require attention to the permanent successor; clinical review, splint removal, and radiography are separate decisions.