Posts for tag: dental implants
If you're considering dental implants to replace one or more missing teeth, you'll need to undergo a minor to moderate surgical procedure (depending on the number of implants) to install them. Depending on your current health status and medical history, you may need antibiotics before or after the procedure to help ensure a successful outcome.
Although implants have a high success rate (over 95%), they can still fail — and bacterial infection is a major culprit. Installing implants requires surgically accessing the bone through the gum tissues; you may also need other invasive procedures like tooth extraction or bone or gum tissue grafting. These disruptions to the soft tissues can introduce bacteria into the bloodstream.
In certain individuals, this can increase infection risk not only around the implant but also in other parts of the body. You may be at higher risk, for example, if you have serious health problems like cardiovascular disease or diabetes, a weakened immune system, you use tobacco or you're over or under normal weight. The American Dental and American Heart Associations both recommend antibiotics before dental implant surgery as a preventive measure against infection if you have a prosthetic heart valve, a history of infective endocarditis, a heart transplant or some congenital heart conditions.
For other patients with low to moderate risk for infection, there's vigorous debate on administering antibiotics before implant surgery. There are some side effects to antibiotic use, ranging from diarrhea to allergic reactions, and an increased concern in general to the developing resistance of many infectious agents due to the prevalent use of antibiotics. Many dentists and physicians are becoming more discriminate in the patients for which they prescribe antibiotics before surgical procedures.
It really comes down, then, to your particular case: not only the specific procedures you need but also your general health. After weighing these factors against the possible benefits for protecting your health and improving your odds of a successful outcome, we'll recommend whether antibiotic treatment for implants is right for you.
Even with modern prevention and treatment advances, losing teeth in later life is still a sad but common part of human experience. Just as generations have before, many today rely on dentures to regain their lost dental function and smile.
But although effective, dentures have their weaknesses. The most serious: they can't prevent jawbone deterioration, a common problem associated with tooth loss.
Bone health depends on chewing forces applied to the teeth to stimulate replacement growth for older bone cells. When teeth are gone, so is this stimulation. Dentures can't replicate the stimulus and may even accelerate bone loss because they can irritate the bone under the gums as they rest upon them for support.
But there's a recent advance in denture technology that may help slow or even stop potential bone loss. The advance incorporates implants with dentures to create two hybrid alternatives that may be more secure and healthier for the supporting bone.
The first is known as an overdenture, a removable appliance similar to a traditional denture. But instead of deriving its support from the gums alone, the overdenture attaches to three to four implants (or only two, if on the lower jaw) that have been permanently set into the jawbone. This not only increases stability, but the implants made of bone-friendly titanium attract and foster increased bone growth around them. This can help slow or even stop the cycle of bone loss with missing teeth.
The second type is a fixed denture. In this version, four to six implants are implanted around the jaw arch. The denture is then secured in place to these implants with screws. It's a little more secure than the overdenture, but it's also more expensive and requires good quality bone at the implant sites.
If you've already experienced significant bone loss you may first need bone grafting to build up the implant sites for these options, or choose traditional dentures instead. But if you're a good candidate for an implant-supported denture, you may find it provides better support and less risk of continuing bone loss than traditional dentures.
If you would like more information on implant-supported dental restorations, 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 “Overdentures & Fixed Dentures.”
If you’re considering a dental implant as a replacement for a lost tooth, you’re looking at a restoration method with an amazing 95% success rate after ten years. But that being said there’s still a risk, albeit quite low, the implant might fail.
And if you smoke, the risk is slightly higher. In a recent study of implant patients, twice as many of the failures occurred in smokers compared to non-smokers. If you’re a smoker, you can increase your chances of a successful outcome if you quit the habit.
Nicotine, a chemical within tobacco, is the primary cause for this higher risk. Besides its effect on the pleasure centers of the brain, nicotine also restricts smaller blood vessels that are abundant in the mouth and skin, causing less blood flow. As a result, the mouth doesn’t have as many antibodies and other substances available to fight infection and help traumatized tissues heal.
Because of this, as well as reduced saliva flow due to the habit, smokers have an increased risk of dental disease and are slower to respond to treatment. This can be especially problematic if the gum tissues around an implant become infected, which could lead to a catastrophic failure. Slower healing also impacts the post-surgery period when bone cells in the jaw are growing and adhering to the implant surface, forming a stronger bond.
To avoid these potential risks you should stop smoking before you undergo implant surgery. If you can’t completely kick the habit, you should at least stop a week before surgery and for two weeks after. It’s also critical that you practice good oral hygiene — both brushing and flossing — to minimize the occurrence of dental disease and see us for regular checkups and maintenance appointments.
Taking these steps will greatly increase your chances of being in the vast majority of people who continue to enjoy success with their implants for many years.
If you would like more information on the impact of smoking on dental health, 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 & Smoking.”
We've been using bridges to replace missing teeth for decades. Now, recently-developed implant-supported bridges are even more dependable, promising greater durability and less interference with remaining natural teeth.
But just like other restorations, you'll need to keep implant bridges clean to ensure their longevity. Although both the bridge and implants are impervious to disease, the supporting gums and bone aren't. If they become infected, they can break down and your restoration will fail.
Cleaning an implant-supported bridge includes flossing around each of the implants to remove dental plaque, a thin film of food particles and bacteria most responsible for dental disease. To perform this task, you'll have to pass the floss between the bridge and gums to access the sides of each implant.
To help make it easier, you can use a tool like a floss threader, a thin, shaft-like device with a loop on one end and a needle-like point on the other. You'll first thread about 18" of floss through the end and then pass the threader between the bridge and gums with the sharp end toward the tongue.
With the threader completely through, you'll then wrap the floss around your fingers as with regular flossing and move the floss up and down each side of the implants you can access. You'll then pull the floss out, reload the threader and move to the next section, repeating this process until you've flossed each side of each implant.
You can also use pre-cut floss with a stiffened end to thread between the bridge and gums or an interproximal brush with a thin bristled head that can reach underneath the bridge. And you might consider using an oral irrigator, a pump device that sprays a stream of pressurized water to remove and flush away plaque around implants.
To round out your hygiene efforts, be sure you visit your dentist at least twice a year for dental cleanings. Your dentist can also advise you and give you training on keeping your implants clear of disease-causing plaque. Cleaning around your implants will help ensure your restoration will last.
If you would like more information on caring for your dental restoration, 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 “Oral Hygiene for Fixed Bridgework.”
Dental implant technology has advanced at such an astounding rate in recent years that you can now walk into a dentist's office with a problem tooth and out the same day with a new one. Unfortunately, not all dental situations allow for this possibility.
For example, you might be considering an implant many years after losing a tooth. But there's a potential problem: there might not be enough supporting bone. While an implant might still be possible, inadequate bone complicates the matter.
Because implants are essentially tooth root replacements, they require a certain amount of bone for stability and the best attractive outcome. As a general rule, implants need to be surrounded by at least 1.5-2.0 millimeters of healthy bone to support an implant. But you might not have enough if your tooth has been missing for awhile, regardless if you have or haven't worn dentures or other restorations.
That's because bone has a life cycle in which older cells die and newer ones form to take their place. As we chew or bite, the force generated travels up through the teeth to the bone to stimulate this new growth. Without a tooth the bone doesn't receive this stimulus, which can slow the growth rate. Over time the affected bone can lose its volume and density.
If we find you've experienced loss to the point your bone won't support an implant, that doesn't automatically mean this popular restoration is out of the picture. But it will require us first performing a procedure known as augmentation or bone grafting to help rejuvenate some of the lost bone.
With grafting, we place processed bone grafting material in the jaw through a minor surgical procedure to form a scaffold for new bone to grow upon. After several months this can result in several millimeters of new growth maintaining the width of the underlying bone, which in turn may be able to support an implant.
Bone grafting is quite common, often performed at the same time as tooth extraction if there's going to be a time lag before installing an implant. Even if performed later, though, it can successfully rejuvenate lost bone and make it possible for you to take advantage of durable, life-like implants.
If you would like more information on dental implants, 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 after Previous Tooth Loss.”