The “magic” behind a dental implant’s durability is the special affinity its imbedded titanium post has with bone. Over time bone grows and attaches to the titanium surface to produce a strong and secure hold.
But there’s one important prerequisite for ultimate implant success—there must be an adequate amount of bone available initially to properly position the post during implantation. Otherwise, the implant may not have enough support to position it properly or cover the implant surface completely with bone.
Inadequate bone can be a problem for patients who lost teeth some time before and now desire to an implant restoration. This happens because when teeth are missing, so are the forces they generate during chewing. These forces stimulate new bone growth around the tooth root to replace older, dissolved bone at a healthy rate. If that replacement rate is too slow, the volume and density of bone may gradually diminish.
There is a way, though, to build up the bone for future implantation. Known as bone preservation procedure or a ridge augmentation, it’s a surgical procedure in which the dentist adds bone grafting material to the extraction socket or the bony ridge. The graft serves as a scaffold for new bone cells to grow and multiply. If successful, there will be enough new bone volume after several months of healing to support proper implant placement.
Bone grafting can add more time to the implant process. It may also mean you will not be able to undergo immediate crown placement after implantation (a “tooth in one day” procedure). Instead we would probably suture gum tissue over the implant to protect it and allow for full integration with the bone over a few more months. In the meantime, though, we could fit you with a temporary restoration like a removable partial denture (RPD) or a bonded bridge to improve the appearance of the space while the bone continues to heal.
After several months, your implant will have a better chance of a secure hold and we can then attach a life-like crown. Even if you’ve suffered bone loss, you’ll then have the benefit of not only a durable implant but also a new smile.
The March 27th game started off pretty well for NBA star Kevin Love. His team, the Cleveland Cavaliers, were coming off a 5-game winning streak as they faced the Miami Heat that night. Less than two minutes into the contest, Love charged in for a shot on Heat center Jordan Mickey—but instead of a basket, he got an elbow in the face that sent him to the floor (and out of the game) with an injury to his mouth.
In pictures from the aftermath, Love’s front tooth seemed clearly out of position. According to the Cavs’ official statement, “Love suffered a front tooth subluxation.” But what exactly does that mean, and how serious is his injury?
The dental term “subluxation” refers to one specific type of luxation injury—a situation where a tooth has become loosened or displaced from its proper location. A subluxation is an injury to tooth-supporting structures such as the periodontal ligament: a stretchy network of fibrous tissue that keeps the tooth in its socket. The affected tooth becomes abnormally loose, but as long as the nerves inside the tooth and the underlying bone have not been damaged, it generally has a favorable prognosis.
Treatment of a subluxation injury may involve correcting the tooth’s position immediately and/or stabilizing the tooth—often by temporarily splinting (joining) it to adjacent teeth—and maintaining a soft diet for a few weeks. This gives the injured tissues a chance to heal and helps the ligament regain proper attachment to the tooth. The condition of tooth’s pulp (soft inner tissue) must also be closely monitored; if it becomes infected, root canal treatment may be needed to preserve the tooth.
So while Kevin Love’s dental dilemma might have looked scary in the pictures, with proper care he has a good chance of keeping the tooth. Significantly, Love acknowledged on Twitter that the damage “…could have been so much worse if I wasn’t protected with [a] mouthguard.”
Love’s injury reminds us that whether they’re played at a big arena, a high school gym or an outdoor court, sports like basketball (as well as baseball, football and many others) have a high potential for facial injuries. That’s why all players should wear a mouthguard whenever they’re in the game. Custom-made mouthguards, available for a reasonable cost at the dental office, are the most comfortable to wear, and offer protection that’s superior to the kind available at big-box retailers.
If you have questions about dental injuries or custom-made mouthguards, please contact our office or schedule a consultation. You can read more in the Dear Doctor magazine articles “The Field-Side Guide to Dental Injuries” and “Athletic Mouthguards.”
Periodontal (gum) disease is a serious matter. Not only can it wreak havoc with your gums, it could also cause bone loss in the jaw that supports your teeth.
Gum disease is a bacterial infection that originates from a thin film of food particles on tooth surfaces called plaque. If you're not diligent about removing plaque through daily brushing and flossing, it can become a feeding ground for certain strains of bacteria that trigger gum infections. Left untreated, the disease can advance deeply into the teeth's supporting structures.
We're particularly concerned about furcations, the specific locations where multiple roots of a tooth fork or separate. When these locations become infected we call it a furcation involvement or invasion. The bone along the furcation will begin to deteriorate and dissolve, following a progression of stages (or classes) we can measure by probing the gum tissue or through x-ray evaluation:
- Class I: the furcation feels like a groove, but without any noticeable bone loss;
- Class II: a depression of about two or more millimeters develops indicating definite bone loss;
- Class III: Â bone loss now extends from one side of the root to the other, also known as “through and through.”
Treating furcation involvements can prove challenging because the infection is usually well below the gum line (sub-gingival). As with all gum disease treatment, our primary approach is to remove all plaque and calculus (hardened plaque deposits) where we find it, including around the roots. We typically use specially shaped instruments to clean the root surfaces. We can also employ an ultrasonic device that loosens plaque and calculus with high-frequency vibrations and flushed away with water.
Sometimes, we may need to surgically access involved furcations to clean them and stimulate bone growth with grafting. We can also use surgery to make the areas easier to clean — both for you and for us during your regular office cleanings — to prevent reoccurrences of infection.
Of course, preventing gum disease in the first place is your best defense against oral problems like furcation bone loss. Be sure you brush and floss every day, and visit us for thorough cleanings at least twice a year (unless we recommend more). This will help make sure not only your gums, but the bone that supports your teeth stays healthy.
If you would like more information on treating periodontal (gum) disease, 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 “What are Furcations?”
While it's possible for a teenager to lose a tooth from decay, it's more common they'll lose one from an accidental knockout. If that happens to your teenager, there are some things you should know to achieve a good outcome.
Our top concern is to preserve the underlying bone following tooth loss. Like other tissues, bone has a life cycle: older cells dissolve and are absorbed by the body (resorption), then replaced by new cells. The biting pressure generated when we chew helps stimulate this growth. But bone around a missing tooth lacks this stimulation and may not keep up with resorption at a healthy rate.
This can cause a person to lose some of the bone around an empty tooth socket. To counteract this, we may place a bone graft at the site. Made of bone minerals, usually from a donor, the graft serves as a scaffold for new bone growth. By preventing significant bone loss we can better ensure success with a future restoration.
Because of its lifelikeness, functionality and durability, dental implants are considered the best of the restoration options that can be considered to replace a missing tooth. But placing an implant during the teen years is problematic because the jaws are still growing. If we place an implant prematurely it will appear to be out of alignment when the jaw fully matures. Better to wait until the jaw finishes development in early adulthood.
In the meantime, there are a couple of temporary options that work well for teens: a removable partial denture (RFP) or a fixed modified bridge. The latter is similar to bridges made for adults, but uses tabs of dental material that bond a prosthetic (false) tooth to the adjacent natural teeth to hold it in place. This alleviates the need to permanently alter the adjacent natural teeth and buy time so that the implant can be placed after growth and development has finished.
And no need to worry about postponing orthodontic treatment in the event of a tooth loss. In most cases we can go ahead with treatment, and may even be able to incorporate a prosthetic tooth into the braces or clear aligners.
It's always unfortunate to lose a tooth, especially from a sudden accident. The good news, though, is that with proper care and attention we can restore your teenager's smile.
If you would like more information on how to treat lost teeth in teenagers, 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 “Dental Implants for Teenagers.”
Many people learn they have periodontal (gum) disease after noticing gum swelling, soreness or bleeding. But what you can see or feel may be only the tip of the iceberg — the damage may extend much deeper.
Gum disease is caused mainly by dental plaque, a thin film of bacteria and food particles built up on teeth due to ineffective brushing and flossing. Infection of the visible gums is only the beginning — left untreated, it can advance well below the gum line and even infect supporting bone.
One critical concern in this regard is the areas where the roots of a tooth separate from each other, known as furcations. Here an infection known as a furcation invasion can cause the bone to weaken and dissolve.
This usually occurs in stages (or classes) we can detect through manual probing and/or with x-rays. In the earliest stage, Class I, we might only notice a slight pocket in the gums with no significant bone loss. In Class II, though, the pocket between the roots has become a horizontal opening of two or more millimeters, indicating definite bone loss with increased pocket depth getting “under” the crown of the tooth. Class III, the last and most serious stage, describes an opening we can probe under the crown all the way to the other side of the tooth; the bone loss now extends “through and through” the furcation.
The basic goal of gum disease treatment is to remove plaque and calculus (tartar) from all tooth and gum surfaces. But removing plaque below the gum line, especially “into” the furcations, can be challenging. We will need instruments called scalers to clean root surfaces, assisted sometimes by ultrasonic equipment to vibrate plaque loose. With furcations we may also need to employ surgery to aid gum or bone tissue regeneration or to make the area easier to access for future cleaning.
Of course, the best way to protect against furcation invasions is to prevent gum disease in the first place. Be sure to brush and floss daily and visit us for thorough dental cleanings and checkups at least every six months.
And don’t delay contacting us if you see any signs of teeth or gum problems. The sooner we can identify gum disease, the more likely we’ll be able to prevent it from doing serious damage to your gums, bone and teeth.
If you would like more information on treating gum disease, 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 “What are Furcations?”
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