Understanding Tooth Trauma

Tooth trauma can be a distressing experience, but understanding the types, causes, and treatments of dental injuries can help you manage them effectively. This guide provides essential information and pictures of traumatic injuries to both primary (baby) teeth and permanent teeth, ensuring you know what to do in case of an emergency.


IMPORTANT: What to Do If You Experience Dental Trauma

If you or your child experiences dental trauma, quick and appropriate action can make a significant difference in the outcome. Here’s what you should do immediately:

  1. Stay Calm: Keep calm to help manage the situation effectively.
  2. Assess the Injury: Check for visible damage to the teeth, gums, and surrounding areas. Look for signs of concussion or other head injuries.
  3. Control Bleeding: Use a clean cloth or gauze to gently apply pressure to any bleeding areas.
  4. Preserve Knocked-Out Teeth: If a permanent (adult) tooth is knocked out, try to reinsert it into the socket if possible. DO NOT try to reinsert a primary (child’s teeth) as you may unknowingly injure the permanent tooth beneath. If you cannot reinsert a permanent tooth, place it in milk or a saline solution and seek dental care immediately.
  5. Avoid Touching the Root: Handle the tooth by the crown (top part), not the root.
  6. Manage Pain: Over-the-counter pain relievers can help manage pain. Avoid aspirin in young children.
  7. Seek Professional Help: Contact your dentist or visit an emergency dental clinic as soon as possible.

Quick action can significantly improve the chances of saving a tooth and preventing further complications. Always seek professional dental care for any dental trauma.


Dental Trauma: An Overview

Dental Trauma (Primary Teeth)

Dental trauma refers to any injury to the teeth, gums, or surrounding bone. It is particularly common among children, especially in their maxillary incisors (front teeth), due to falls and accidents.

  • By age 5, one-third of boys and one-fourth of girls experience dental trauma.
  • The peak age for trauma to primary teeth is between 2-4 years old.
  • About 30% of children in North America will experience dental trauma.

These injuries can have long-term consequences if not treated properly, affecting the development and alignment of permanent teeth.


Types of Tooth Trauma

Children’s teeth are typically pushed around within the jaw bone, instead of fracturing outright, when injured. These types of injuries are more common than fractures due to the spongy nature of young children’s bones and their comparatively smaller roots. In contrast, adult teeth are more likely to fracture, due to higher density of bone and longer tooth roots.

After receiving trauma teeth the following signs are usually seen:

  • Discoloration: Changes in the color of the tooth.
  • Pulp Canal Obliteration (PCO): Loss of pulp space.
  • Pulpal Necrosis with Abscess: Death of the pulp tissue leading to infection.
  • Accelerated Root Resorption/Early Exfoliation: Premature loss of the tooth.
  • Internal Resorption: Breakdown of the internal structure of the tooth.
  • Ankylosis: Fusion of the tooth to the bone, preventing normal tooth eruption.

A dentist’s main goal if tooth trauma occurs will be to:

  • Control bleeding, pain, and infection.
  • Maintain pulp and PDL vitality (the health of the live tissue inside your teeth).
  • Allow continuous root development in young permanent teeth.
  • Restore function and esthetics.

The exact treatment depends on what injury has occurred and what high-quality X-ray radiographs show when planning treatment for dental trauma. This is explained in great detail below:


Injuries to Teeth

Tooth Fracture Types
Types of Tooth Fractures

Enamel Fracture

An enamel fracture involves the chipping or breaking of the outer layer of the tooth. Treatment usually involves smoothing off rough edges or applying a composite resin “band-aid” to protect the tooth.

Enamel and Dentin Fracture

Enamel and Dentin Fracture
Enamel and Dentin Fracture

This type of fracture affects both the enamel and the underlying dentin. A composite resin filling can be used to cover the exposed dentin and protect the tooth.

Enamel, Dentin Fracture with Pulp Exposure

Enamel, Dentin Fracture with Pulp Exposure
Enamel, Dentin Fracture with Pulp Exposure

This severe type of fracture exposes the tooth’s pulp. The pulp of the tooth contains blood vessels and nerves. Treatment options include pulpectomy, indirect pulp capping, partial pulpotomy, or extraction to prevent infection and further complications.

Root Fracture

Root Fracture
Crown and Root Fracture

A root fracture involves a break in the tooth’s root. Since the root is located beneath the gums, these teeth are usually no longer saveable. These fractures typically require extraction to prevent damage to the surrounding bone and tissues.


Injuries to Periodontal Tissues

Concussion

In a concussion injury, the tooth is not mobile or displaced. The periodontal ligament (PDL) which connects your tooth to bone absorbs the injury, causing inflammation and sensitivity to touch and pressure. These types of injuries are usually not severe and can be managed with regular care of your teeth.

Subluxation

Subluxation involves slight loosening of the tooth without displacement. Some bleeding may be evident, but any abnormalities in an x-ray are usually not visible. Like concussions, these types of injuries are usually not severe and can be managed with regular care of your teeth.

Intrusion

Intrusion of Tooth
Intrusion of Upper Right Tooth (Maxillary Central Incisor)

Intrusion occurs when the tooth is driven into its socket, compressing the PDL and often causing a crushing fracture of the alveolar socket. Treatment may include allowing the tooth to re-erupt or extracting it if it affects the permanent tooth.

Extrusion

Tooth Extrusion
Extrusion of Upper Right Tooth (Maxillary Central Incisor)

Extrusion is a partial movement of a tooth out of the socket where the tooth appears elongated and mobile. Minor extrusions may reposition spontaneously, but severe cases require extraction and or dentist intervention.

Lateral Luxation

Lateral Luxation
Lateral Luxation of Maxillary Incisors Inwards

Lateral luxation involves the tooth being displaced sideways, usually with the crown moving in a palatal (inwards) or lingual (sideways) direction. Treatment depends on the severity of the luxation and whether or not your bite is affected. Mild cases may heal spontaneously, while severe cases may require extraction and or dentist intervention.

Avulsion

Tooth Avulsion
Avulsion of Maxillary Central Incisor

An avulsion is the complete displacement of the tooth out of the socket. Avulsed primary teeth should never be replanted to avoid damaging the developing permanent tooth underneath. For permanent teeth immediate replantation is often necessary to save the tooth.


Injuries to the Supporting Bone

Bony Fracture
Fracture of Mandible

Bony fractures involve breaks in the supporting bone structure, such as the alveolar process, maxilla, or mandible. Treatment may require surgical intervention to stabilize the bone and prevent further complications.


Conclusion

Tooth trauma requires prompt and appropriate care to prevent long-term damage and ensure proper healing. If you or your child experiences a dental injury, seek professional dental care immediately. By understanding the types of injuries and their treatments, you can help manage the situation effectively and maintain your oral health.

For further guidance, always consult with a dental professional who can provide tailored advice based on the specific nature of the injury.


Disclaimer

The contents of this website, such as text, graphics, images, and other material are for informational purposes only and are not intended to be substituted for professional medical advice, diagnosis, or treatment. Nothing on this website constitutes the practice of medicine, law or any other regulated profession.

No two mouths are the same, and each oral situation is unique. As such, it isn’t possible to give comprehensive advice or diagnose oral conditions based on articles alone. The best way to ensure you’re getting the best dental care possible is to visit a dentist in person for an examination and consultation.

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