Dental Trauma Health Article

Definition

Dental trauma is an injury to the mouth and teeth, including oral structures such as the lips, tongue and cheeks.

Description

Dental trauma can occur during contact sports, motor vehicle accidents, falling and hitting the face, fighting and/or from untreated tooth decay. It can be caused by physical abuse or domestic violence.

Causes and symptoms

Injuries to a broken or knocked out (evulsed) tooth can cause severe pain. If the lower jawbone is cracked or broken, the patient will be unable to move the jawbone without pain and discomfort. Broken fillings or old crowns are susceptible to decay. They can weaken and undermine the tooth structure, causing the tooth to break. This could result in sharp edges and corners that may damage the tongue tissue.

Diagnosis

X rays (taken to reveal the extent of dental trauma to hard tissue) together with a thorough examination, aid in finding the source of the trauma.

Tooth movement

If the entire tooth is knocked out of the socket (evulsion), the tooth must be found and repositioned back in the socket. If this is done in the first 20 minutes, there is a 90% chance of tooth survival. Thirty to 60 minutes cuts the tooth survival rate to 75%.

• The tooth should be picked up gently and held by the crown, not the root.
• The tooth should be carefully rinsed with water; it should not be scrubbed.
• The tooth should be kept moist; it should not be dried.
• If possible, the tooth should be placed in the socket; if this is not possible, it should be placed in a cup of milk.

If a tooth is bumped and still in the socket, but in the wrong position (luxation), dental help should be sought immediately. The following steps should be followed, depending on the position of the tooth.

• An upper tooth hanging down or lower tooth raised up (extrusion) should be repositioned in the socket using firm pressure. The tooth should then be stabilized by having the patient bite down firmly, or bite on a piece of cloth or a handkerchief.
• A tooth pushed back toward the tongue or pulled forward toward the face (lateral displacement) requires repositioning by using firm pressure. This may cause severe pain and biting down on a piece of cloth or handkerchief will help alleviate some of this pain and help to stabilize the tooth.
• Teeth pushed into the gum tissue or teeth that look short (intrusion) require no intervention. Repositioning may damage both tooth nerve and tissue.