Craig S. Karriker, DMD, P.A.- 400 South Granard Street, Gaffney, SC 29341, (864) 487-0710

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By Craig S. Karriker, DMD, PA
October 13, 2020
Category: Dental Procedures
Tags: dental injury  
ActQuicklyWithaKnockedOutToothtoEnsureItsLong-TermSurvival

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:

  1. Find the tooth, hold it by the crown (not the root end), and rinse off any debris with clean water;
  2. Reinsert the root end into the empty socket with firm pressure;
  3. 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;
  4. Seek dental or emergency medical care immediately;
  5. 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.”

By Craig S. Karriker, DMD, PA
August 05, 2018
Category: Oral Health
TreatingaChildsToothInjuryMayRequireSpecialConsideration

Often as children grow older, their participation in sports or similar activities increases. While generally encouraged, this greater activity does increase injury risk, especially to the mouth.

In fact, the late childhood to early adulthood demographic is the most prone portion of the population to incur dental injuries. To complicate matters, their dental development is often incomplete, posing a number of treatment obstacles for an injured tooth.

For example, the primary means for preserving an injured adult tooth is a root canal treatment: damaged or diseased tissue within the pulp, the tooth’s innermost layer, is removed and the empty chamber and root canals filled and sealed to prevent infection. But while a fully matured tooth can function without the nerves and blood vessels of the pulp, a developing tooth needs these tissues for continued tooth formation. Otherwise, tooth development can stall and cause problems later on.

The most common solution for younger teeth is to remove any damaged tooth structure without disturbing the pulp if at all possible followed by a filling. That’s contingent, though, on whether we find the pulp unexposed or undamaged—if it is, we’ll try to remove only damaged or diseased pulp tissue and leave as much healthy tissue intact as possible. To aid with healing and tissue re-growth, we may also place medicinal stimulators between the pulp and the filling.

Jaw development may also pose a challenge if the injured tooth is too far gone and must be removed. Our best choice is to replace it with a dental implant; but if we install the implant while the jaw is still growing, it may eventually appear out of place with the rest of the teeth. It’s best to postpone an implant until full jaw maturity in early adulthood.

In the meantime we could provide a temporary solution like a removable partial denture or a modified bonded bridge that won’t permanently alter nearby teeth. These methods can adequately restore the function and appearance of missing teeth until the jaw is mature enough for an implant.

While injuries with young permanent teeth do pose extra challenges, we have effective ways to address them. With the right approach, the outcome can be just as successful as with a mature tooth.

If you would like more information on dental care in the formative years, 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 “Saving New Permanent Teeth after Injury.”

By Craig S. Karriker, DMD, PA
July 31, 2018
Category: Oral Health
Tags: dental injury   mouthguards  
MouthguardsFoundtobeEffectiveinPreventingTeethandMouthInjuries

Athletes in contact sports are at significant risk for traumatic injury to their teeth and mouth. It’s estimated 600,000 emergency room visits each year involve a sports-related dental injury.

Athletic mouthguards have become the premier safeguard against sports-related oral injuries. First worn by professional boxers in the 1920s, mouthguards are now required for use by various sports associations and leagues — from amateur youth to professional — for a number of sports. The National Collegiate Athletic Association (NCAA), for example, requires their use during play for hockey, lacrosse, field hockey and football. The American Dental Association recommends mouthguards for 29 sports or exercise activities.

But do mouthguards actually prevent injury? To answer that question in a scientific manner, the Journal of Sports Medicine published an evidence-based report in 2007 on mouthguard effectiveness for preventing or reducing the severity of oral-facial injuries and concussions. While the report objectively analyzed many of the problems and issues associated with mouthguards (like materials, design and durability), it concluded the risk of an oral-facial injury was nearly two times greater without the wearing of a mouthguard.

That being said, most dentists and other professionals in sports safety would advise not all mouthguards are alike. The stock, “off the shelf” mouthguard found in many retail stores with limited size offerings is the least expensive, but also least protective, of mouthguard types. Mouth-formed or “boil-and-bite” protectors, which are softened in boiling water and then bit down on by the player to form the fit, are better than the stock version — however, they often don’t cover all of the player’s back teeth.

The best option is a custom-designed guard made by a dentist for the individual patient. Although relatively expensive (costs range in the hundreds, compared with $25 or less for a stock guard), they provide the highest recognized level of mouth protection.

The bottom line: a mouthguard is a must-wear part of any uniform for any sport that involves contact or high velocity objects of play. If you or a family member is a contact sport athlete, it’s essential you protect your teeth and mouth with a custom-fit, high quality mouthguard.

If you would like more information on mouthguards, 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 “Athletic Mouthguards.”

By Craig S. Karriker, DMD, PA
December 19, 2017
Category: Dental Procedures
Tags: dental injury  
AChildsDamagedToothmayrequireaDifferentApproachthananAdults

A traditional root canal procedure can be a “life-saver” for a decayed or injured tooth. But while it’s usually the best course for a damaged adult tooth, variations of the procedure are advisable for a new permanent tooth in a child or young adolescent.

This is because the inner pulp, the focus of the treatment, plays an important role in a young tooth’s development. When it first erupts a tooth’s dentin layer, the living tissue that makes up most of the body and roots of the tooth, hasn’t fully formed. The pulp increases the dentin layer over time in conjunction with jaw development.

Because a full root canal treatment removes all of the pulp tissue, it could interrupt any remaining dentin development in a young tooth. This could lead to poorly-formed roots and a less healthy tooth. For an immature permanent tooth, then, we would use variations of a root canal treatment depending on the nature and extent of the injury, the patient’s overall health and medications they may be taking.

Our main objective is to expose or remove as little of the pulp tissue as possible when treating the tooth. If the pulp hasn’t been exposed by the decay or injury, we may only need to remove the softened decayed or injured dentin while leaving harder dentin nearer the pulp intact. If, however, the pulp has become partially exposed by disease or injury, we would then perform a pulpotomy in which we remove only the exposed tissue and then place calcium hydroxide or mineral trioxide aggregate (MTA) to stimulate dentin growth that will eventually patch the exposure site.

In cases where decay or injury has rendered an immature tooth’s pulp tissue unsalvageable, we may use a procedure known as apexification that seals off the open, cylindrical root end of the tooth. This will allow bone-like tissue to grow around the root to serve as added support for the tooth. Although it can save a tooth in the short run, the tooth’s long-term survival chances may be lower.

By using these and other techniques we may be able to save your child’s immature tooth. At the very least, such a technique could postpone replacing the tooth until a more opportune time in adulthood.

If you would like more information on treating damaged teeth in children, 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 “Saving New Permanent Teeth after Injury.”

By Craig S. Karriker, DMD, PA
November 11, 2014
Category: Oral Health
Tags: oral health   dental injury  
TheTimeIntervaltoReplantaKnockedOutToothCanAffectitsLongevity

Contrary to what you might think, a knocked out tooth doesn’t inevitably mean tooth loss. Time is of the essence — the shorter the interval between injury and replanting the tooth, the better the tooth’s long-term survival. The longer the interval, on the other hand, the less likely the tooth can survive beyond a few years. That phenomenon is due to the mouth’s natural mechanism for holding teeth in place.

The tooth root maintains its attachment with the jaw bone through an intermediary tissue known as the periodontal ligament. Tiny fibers from one side of the ligament securely attach to the tooth root, while similar fibers attach to the bone on the opposite side of the ligament. This maintains stability between the teeth and bone while still allowing incremental tooth movement in response to mouth changes like tooth wear.

While the ligament fibers will attempt to reattach to a replanted tooth’s root, the longer the tooth is out of the socket the less likely the fibers will fully reattach. An “ankylosis” may instead form, in which the root attaches directly to the jaw bone without the periodontal ligament. In this situation the body no longer “recognizes” the tooth and begins to treat it like a foreign substance. In all but the rarest cases, the tooth root will begin to resorb (dissolve); at some point (which varies from patient to patient) the attachment becomes too weak for the tooth to remain in place and is lost.

Ideally, a knocked out tooth should be replanted within 5 minutes of the injury (for step-by-step instructions, refer to The Field-Side Guide to Dental Injuries available on-line at www.deardoctor.com/dental-injuries). Even if you pass the 5-minute window, however, it’s still advisable to attempt replanting. With a subsequent root canal treatment (to remove dead tissue from the inner tooth pulp and seal it from infection), it’s possible the tooth can survive for at least a few years, plenty of time to plan for a dental implant or similar tooth replacement.

If you would like more information on treatment for a knocked out tooth, 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 “Knocked Out Tooth.”