Posts for: September, 2020
We Americans love our sports, whether as participants or spectators. But there's also a downside to contact sports like soccer, football or basketball: a higher risk of injury, particularly to the mouth and face. One of the most severe of these is a knocked out tooth.
Fortunately, that doesn't necessarily mean it's lost: The tooth can be reinserted into the empty socket and eventually return to normal functionality. But it must be done as soon as possible after injury. The more time elapses, the lower the chances of long-term survival.
That's because of how teeth are held in place in the jaw, secured by an elastic, fibrous tissue known as the periodontal ligament. When a tooth is knocked out some of the ligament's periodontal cells remain on the tooth's root. If these cells are alive when the tooth is reinserted, they can regenerate and reestablish attachment between the ligament and the tooth.
Eventually, though, the cells can dry out and die. If that has already happened before reinsertion, the tooth's root will fuse instead with the underlying bone. The tooth may survive for a short time, but its roots can eventually dissolve and the tooth will be lost.
Your window of opportunity for taking advantage of these live periodontal cells is only 5-20 minutes with the best chances in those earlier minutes. You should, therefore, take these steps immediately after an injury:
- Find the tooth, hold it by the crown (not the root end), and rinse off any debris with clean water;
- Reinsert the root end into the empty socket with firm pressure;
- Place clean gauze or cloth in the person's mouth between the tooth and the other jaw, and ask them to bite down gently and hold their bite;
- Seek dental or emergency medical care immediately;
- If you're unable to reinsert the tooth, place it quickly in a container with milk and see a dentist immediately.
You can also obtain an Android or IOS smartphone app developed by the International Association of Dental Traumatology called ToothSOS, which will guide you through this process, as well as for other dental emergencies. The quicker you act, the better the chances that the injured person's knocked out tooth can be rescued.
If you would like more information on what to do in a dental emergency, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor magazine article “When a Tooth is Knocked Out.”
If all goes normally, we have most of our permanent teeth as we enter puberty. Except, though, when it doesn't—sometimes incoming permanent teeth don't fully erupt, often because there's not enough room for them on the jaw. This can leave all or part of a tooth still up inside the gum and bones.
This condition is known as impaction, and it can cause problems with a person's bite and their smile. This is especially true of the upper canines, those pointed teeth located just under the eyes. Without them present, a person's smile can look oddly different. Moreover, it can worsen their bite and increase the risk of trauma and disease for nearby teeth.
Fortunately, there may be a way to coax impacted canines into erupting into their proper position on the jaw. It will involve, though, some minor surgery and orthodontic intervention to accomplish that feat.
First, though, a patient with missing canines should undergo a thorough orthodontic evaluation. This exam will reveal not only what may be going on with the missing teeth, but how the whole bite has been affected. Knowing the big picture will help direct the next treatment steps.
After pinpointing the impacted teeth's exact position (usually through x-rays or cone beam CT scanning), we then decide whether it's feasible to attempt to expose the teeth. Sometimes, a tooth's position is so out of place that it may be best to remove it and consider a dental implant or other restorative measures.
If it is in a workable position, then the impacted teeth would be exposed surgically (usually by an oral surgeon or periodontist). The surgeon would then bond a small bracket to the exposed tooth and then attach a small chain.
After suturing the incised gum tissues back in place, the chain extending outward from the gums would then be looped over orthodontic hardware attached to other teeth. This will place downward pressure on the upper canine tooth, and over several months prod it to fully erupt.
This may sound like an elaborate procedure, but it's fairly routine and predictable. As a result, a patient can finally get the full benefit of all their teeth, enhance their dental health and transform their smile.
If you would like more information on dealing with impacted teeth, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor magazine article “Exposing Impacted Canines.”