Posts for: June, 2019
For a predictable outcome, a dental implant should be placed as soon as the bone and gum tissues following a tooth extraction have healed. But what happens if the tooth has been missing for months or years? You might then run the risk of not having enough bone to properly place an implant.
This can happen because of a disruption in the growth cycle of living bone tissue. As older bone cells dissolve (resorption), new bone develops to take its place. This is a dynamic process, as the amount and exact location of the new growth is in response to changes in the mouth, particularly from forces generated by the teeth as we chew. If, however, this stimulation transmitted to the bone no longer occurs because the tooth is missing, the bone will tend to dissolve over time.
In fact, within the first year after a tooth loss the associated bone can lose as much as a quarter of its normal width. This is why we typically place bone grafting material in an empty socket at the same time as we extract the tooth. This encourages bone growth during the healing period in anticipation of installing a dental implant or a fixed bridge. If, however, the bone has diminished to less than required for a dental implant, we must then use techniques to encourage new bone growth to support a future implant.
One such technique for restoring bone in the back of the upper jaw is to surgically access the area through the maxillary sinus (a membrane-lined air space within the bone structure of the face) positioned just over the jawbone to place grafting material. During surgery performed usually with local anesthesia, the surgeon accesses the sinus cavity, lifts the tissue membrane up from the sinus floor and applies the grafting material on top of the bone. Eventually, the new bone growth will replace the grafting material.
If successful, the new bone growth will be sufficient to support an implant. Thanks to this renewed growth, you’ll soon be able to enjoy better function and a transformed smile provided by your new implant.
If you would like more information on forming new bone for implants through sinus surgery, 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 “Sinus Surgery.”
Although costly in the beginning, dental implants often turn out to be the least expensive tooth replacement option. That's because their enviable record for longevity often outpaces dentures or bridges. Over the long-term you might spend less for implants than these other restorations.
But even with the high success rate of dental implants (greater than 95% survive the ten-year mark), we can't guarantee they won't fail. And if you're a tobacco smoker, the risk of failure might be even higher. One study, for example, found early implant failures were twice the rate for smokers over non-smokers. Although implant failures overall are low, smoking seems to be a factor in those that do.
There are a number of reasons to account for this. For one thing, inhaled smoke can damage salivary glands, reducing the flow of this important fluid. Saliva helps control bacterial growth and neutralize mouth acid, so without it you're more susceptible to tooth decay or periodontal (gum) disease. Either infection could ultimately weaken implant-supporting bone.
The nicotine in tobacco can also restrict oral blood vessels and lower their ability to supply antibodies and nutrients to the teeth and gums. This slows healing, which could have one particular effect on implant durability.
During the intervening weeks between implant placement and crown attachment, the implant's titanium post attracts bone cells that grow and adhere to its surface. The effects of nicotine on healing, especially right after implant surgery, can interfere with this integration process so that the implant doesn't anchor in the bone as well as it should.
If you're a smoker, you can increase your chances of implant success—and have a healthier mouth overall—by quitting smoking beforehand with the help of a cessation program. Or at the least, consider stopping smoking for one week before implant surgery and for two weeks afterward.
And be sure to brush and floss your teeth daily and visit your dentist regularly to keep your teeth and gums as healthy as possible. Stopping smoking and practicing effective oral hygiene could make a big difference in the success or failure of your implant.
If you would like more information on smoking and your 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.”
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.”