Emergency Tooth Trauma Management (Replantation of Avulsed Teeth)

The major goal of replantation of an avulsed tooth is to replace the child’s natural tooth to restore function in the oral cavity. Timely management of this treatment will:

• Preserve the natural tooth without requiring the child to undergo premature use of prosthetics.
• Prevent shifting of adjacent teeth, which preserves integrity of the arch.
• Maintain the speech and chewing function of the affected child.
• Maintain aesthetic composition of the face.

Further, replacing the natural tooth maintains proper physiologic bone development in the area, which is vital in growing children.

The treatment is intended for children or adolescents who have endured traumatic dental avulsion involving their permanent dentition. In general, children in the following categories should be offered treatment:

• Children aged 6-12 years who have experienced avulsion of an upper front tooth (the most common site for dental traumata).
• Patients who have retrieved the tooth promptly (ideally within 60 minutes).
• Any tooth with a closed apex  (complete root tip) will respond favorably, however, immature teeth can still be replanted if performed by a qualified pediatric dental professional.

Replantation treatments are not recommended for primary (milk teeth) teeth due to the risk of damage to the developing permanent tooth germ beneath.

The approach to replantation is based on the state of the tooth and surrounding tissues:

• Immediate Replantation: This occurs when the tooth is put back in its socket shortly after avulsion and achieves the best success rate.
• Delayed Replantation: This involves attaching a tooth after the avulsion for more than 60 minutes; this procedure will need special case handling, and may potentially require a root canal due to the increased risk of root resorption.
• Replantation with Extraoral Endodontics: This occurs when a root canal is required prior to reattaching the tooth.
• Decoronation and Replantation (for younger kids): This occurs when the tooth structure is compromised, but the root is healthy; the tooth will be decoronated to preserve the alveolar bone until a more permanent solution may be determined.

The replantation procedure includes:

• Initial Assessment: The dentist identifies the level of trauma, identifies if a tooth was avulsed, and also checks for other injuries to the face.
• Tooth Handling: The avulsed tooth is rinsed with saline/milk (not scrubbed) and kept moist.
• Reimplanting the Tooth: The socket is cleaned, and the tooth is carefully placed back in its original location with light pressure.
• Splinting: A flexible dental splint is used to stabilize the tooth for 1-2 weeks.
• Follow-up Care: Antibiotics may be prescribed depending on the injury.
• Pulp Vitality Monitoring: Regularly attending appointments to check on the root health. Eventually, a root canal may be necessary afterwards, especially with closed-apex teeth.

• There are many benefits for paediatric patients considering replantation:
• Preservation of Natural Dentition: The child's original tooth remains in place.
• Maintains Jaw Growth: Jaw bone and dental arch grow normally.
• Aesthetic and Functional Recovery: Prompt improvement in appearance and chewing function.
• Boosts Confidence: Lessens the emotional toll of losing a front tooth. Cost
• Effective: Avoids early prosthetic options that will require continual modifications as children grow.

• Natural Function: No artificial replacement can replicate the function of a natural developed tooth.
• Bone Maintenance: Maintains the height and width of the alveolar bone and does not resorb.
• Development: Supports the eruption and alignment of adjacent teeth.
• Lower Long-Term Cost: Postpones or avoids the need for implants or bridges later in life.

The longevity of a replanted tooth will depend on several factors including:

• How long has it been out before putting it back in.
• The maturity of the tooth. The storage medium.
• The care after the tooth has been put back in.

If properly managed and followed up with the dentist regularly, a replanted tooth may last several years, possibly into adulthood. Though, in some instances, it could eventually be lost due to root resorption or trauma. 

In India, emergency replantation of the avulsed teeth costs approximately ₹2,000 to ₹10,000, depending upon the:

• Location and reputation of the dental facility.
• Complexity of the trauma.
• Need for additional procedures (such as root canal treatment, splinting of the tooth, etc.)
• Follow-up management / X-Ray after the replantation.

In the government hospital set-ups or dental colleges it may be less costly, or even free. 

Replantation is fairly successful, but complications can occur:

• Root resorption: The root may be dissolved by the body over time.
• Ankylosis: The tooth may fuse with the bone, and become immobile.
• Infection or inflammation: Infection or degeneration may develop (if the pulp is dead/ necrotic.)
• Non reattachment: Generally, when the replantation is delayed.
• Discoloration: The tooth may discolor due to decay or trauma.

Timely care and follow-up will mitigate most of the risks. 

There are also disadvantages, even with the benefits:

• Not 100% successful: The teeth may or may not replant successfully, more often when the replantation is delayed or the tooth is improperly stored.
• May require further treatment: Root canal treatment, apexification or extraction; maybe all of the above.
• Requires long follow-up: Affects the follow-up over many months, or years– to have a truthful outcome.
• Mental stress: A bit traumatic for an emergency case for the child/parents.

When replantation may not be possible; the choices include:

• Space Maintainers: To keep the space for later permanent prosthesis.
• Partial Dentures: Removable false teeth that are suitable for children.
• Orthodontic Closure: In select cases, braces can be used to close the space.
• Dental Implants: Only after the child's jaw growth is complete for the space to be implantable.

Each option has advantages and disadvantages and needs to be discussed in light of the child's age and oral condition.

The care after treatment is also very important to have a good outcome of a replantation:

• Oral Hygiene: Gentle brushing with a soft-bristled toothbrush and chlorhexidine mouth rinse once your dentist allows it.
• Diet: Soft diet for 2 weeks; do not bite into foods with front teeth.
• Medication: Complete the prescribed antibiotics.
• Avoid Trauma: Use a mouthguard for sports, and avoid any high-risk physical activities.
• Follow-up visits: To monitor healing and the vitality of the pulp and identify any issues as early as possible.

Identifying and managing any issues early on will greatly improve the overall long-term outcome.