Posts for: May, 2019
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.”
A loose adult tooth isn't normal. It could be loose because it's been subjected to high biting forces like those that occur with a tooth grinding habit. Or, it could be the result of periodontal (gum) disease or some other infection that has weakened some of the tooth's supporting gums and bone. Whatever the underlying cause, we'll need to act quickly to save your tooth.
Our first step is to find out this exact cause—that will determine what treatment course we need to follow. For a tooth grinding habit, for example, you might need to wear an occlusal guard or have your bite (teeth) adjusted. With gum disease, we'll focus on removing dental plaque, the thin film of bacteria and tartar (calculus) fueling the infection. This stops the infection and minimizes any further damage.
While we're treating the cause, we may also need to secure the loose tooth with splinting. This is a group of techniques used to join loose teeth to more stable neighboring teeth, similar to connecting pickets in a fence. Splinting can be either temporary or permanent.
Temporary splinting usually involves composite materials with or without strips of metal to bond the loose tooth to its neighbors as the periodontal structures heal. Once the tooth's natural attachments return to health, we may then remove the splint.
There are a couple of basic techniques we can use for temporary splinting. One way is to bond the splint material to the enamel across the loose tooth and the teeth chosen to support it (extra-coronal splinting). We can also cut a small channel across all the affected teeth and then insert metal ligatures and bond the splint material within the channel (intra-coronal).
If we're not confident the loose tooth will regain its natural gum attachment, we would then consider a permanent splint. The most prominent method involves crowning the loose tooth and supporting teeth with porcelain crowns. We then fuse the crowns together to create the needed stability for the loose teeth.
Whatever splinting method we use, it's important to always address the root cause for a tooth's looseness. That's why splinting usually accompanies other treatments. Splinting loose teeth will help ensure your overall treatment is successful.
If you would like more information on treating loose 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 “Treatment for Loose Teeth.”
X-ray imaging is such an intricate part of dentistry, we usually don't think twice about it. Without it, though, the fight against dental disease would be much harder.
At the same time, we can't forget that x-rays are a form of electromagnetic radiation that can penetrate human tissue. It's that very quality and the difference in the absorption rate between denser bone and teeth and softer diseased tissue that makes disease diagnosis possible.
But this same penetrative power can potentially harm the tissues it passes through. For that reason when practicing any form of x-ray diagnostics, dentists follow a principle known as ALARA, an acronym for "As Low As Reasonably Achievable." In lay terms ALARA means getting the most benefit from x-rays that we can with the lowest dose and exposure time possible.
While practicing ALARA with x-rays is important for patients of any age, it's especially so for children who are more sensitive to radiological energy given their smaller size and anatomy. We can't use the same settings, dosages or exposure times with them as with an adult.
To protect children, dentists have developed techniques and protocols that lessen their exposure time and rate, while still providing usable images for diagnosing disease. The bitewing is a good example of safe and effective pediatric x-ray imaging.
A bitewing is a plastic device holding exposable film that patients bite down on and hold in their mouth while x-raying. The x-rays pass through the teeth and gums and expose the film behind them on the bitewing. Using a bitewing we can capture a set of two to four radiographs to give us a comprehensive view of the back teeth, while exposing the child less radiation than they normally receive daily from background environmental sources.
This and other advances in equipment and digital imaging greatly reduce the amount of radiation patients receive during x-rays. If, though, you're still concerned about your child's x-ray exposure, talk with your dentist who can explain in more detail the x-ray safety protocols they follow. Just like you, they want your child to be as safe as possible while still benefiting from the diagnostic power of x-rays.
If you would like more information on safety precautions using x-rays with 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 “X-Ray Safety for Children.”