Posts for: June, 2021
Most of what goes on inside our mouths—good or bad—is fairly predictable. But every now and then, people encounter something out of the ordinary. A good example is lichen planus.
Lichen planus are rare skin lesions that can occur on various parts of the skin, including inside the mouth. The name comes from their lacy appearance, which resembles a fungus that grows on rocks or trees called lichen.
Being similar in appearance, though, is all that lichen planus has in common with its fungal namesake. It's believed that the sores are caused by a reaction of the immune system mistaking some of the body's cells as foreign.
But don't let the exotic sounding name alarm you—true lichen planus is considered a benign mouth sore. You may not even realize you have it until your dentist notices and points it out. But the lesions can sometimes cause mild pain or burning, especially if they occur near the gums or if you indulge in spicy or acidic foods.
As we said, these lesions aren't considered dangerous. But in a small number of cases, oral cancer was found to develop later. It's unclear whether the lesions were related to the cancer, or if what were diagnosed as lichen planus lesions were actually pre-cancerous cells mimicking the appearance of the benign sore.
In any event, your dentist will probably continue to monitor the lesions and possibly conduct regular oral cancer screenings to be on the safe side. You may also want to stop using tobacco or alcohol products to further decrease your risk of oral cancer.
As to managing lichen planus, it starts with a daily habit of brushing and flossing. You'll also want to avoid spicy or acidic foods like citrus fruits, tomatoes, peppers or caffeinated drinks, especially during flareups. If the lesions are causing discomfort, your dentist may also prescribe a topical steroid to apply to them.
Since it's quite possible you won't know if you have lichen planus (as well as other types of mouth sores) unless your dentist observes them, you should keep up regular dental visits. Having your dentist check your entire mouth, not just your teeth and gums, will help both of you stay on top of your oral health.
If you would like more information on mouth sores, 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 “Lichen Planus.”
For nearly two decades, singer-songwriter Taylor Swift has dominated the pop and country charts. In December she launched her ninth studio album, called evermore, and in January she delighted fans by releasing two bonus tracks. And although her immense fame earns her plenty of celebrity gossip coverage, she's managed to avoid scandals that plague other superstars. She did, however, run into a bit of trouble a few years ago—and there's video to prove it. It seems Taylor once had a bad habit of losing her orthodontic retainer on the road.
She's not alone! Anyone who's had to wear a retainer knows how easy it is to misplace one. No, you won't need rehab—although you might get a mild scolding from your dentist like Taylor did in her tongue-in-cheek YouTube video. You do, though, face a bigger problem if you don't replace it: Not wearing a retainer could undo all the time and effort it took to acquire that straight, beautiful smile. That's because the same natural mechanism that makes moving teeth orthodontically possible can also work in reverse once the braces or clear aligners are removed and no longer exerting pressure on the teeth. Without that pressure, the ligaments that hold your teeth in place can “remember” where the teeth were originally and gradually move them back.
A retainer prevents this by applying just enough pressure to keep or “retain” the teeth in their new position. And it's really not the end of the world if you lose or break your retainer. You can have it replaced with a new one, but that's an unwelcome, added expense.
You do have another option other than the removable (and easily misplaced) kind: a bonded retainer, a thin wire bonded to the back of the teeth. You can't lose it because it's always with you—fixed in place until the orthodontist removes it. And because it's hidden behind the teeth, no one but you and your orthodontist need to know you're wearing it—something you can't always say about a removable one.
Bonded retainers do have a few disadvantages. The wire can feel odd to your tongue and may take a little time to get used to it. It can make flossing difficult, which can increase the risk of dental disease. However, interdental floss picks can help here. And although you can't lose it, a bonded retainer can break if it encounters too much biting force—although that's rare.
Your choice of bonded or removable retainer depends mainly on your individual situation and what your orthodontist recommends. But, if losing a retainer is a concern, a bonded retainer may be the way to go. And take if from Taylor: It's better to keep your retainer than to lose it.
If you would like more information about protecting your smile after orthodontics, please contact us or schedule a consultation. To learn more, read the Dear Doctor magazine article “The Importance of Orthodontic Retainers.”
The mouth is a crowded place with nerves, blood vessels and sinus cavities sharing common space with the teeth and gums. Although important in their own right, these structures can also hinder treatment for complex dental situations like dental implant surgery or impacted teeth.
Treating these and similar situations depends on getting an accurate depiction of “what lies beneath.” Conventional x-rays help, but their two-dimensional images don't always give the full picture. There's another way—cone beam computed tomography (CBCT).
Similar to CT scanning, CBCT uses x-ray energy to take hundreds of “sliced” images that are then re-assembled with special software to create a three-dimensional model viewable on a computer screen. CBCT is different, though, in that it employs a scanning device that revolves around a patient's head, which emits a cone-shaped beam of x-rays to capture the images.
A dentist can manipulate the resulting 3-D model on screen to study revealed oral structures from various angles to pinpoint potential obstacles like nerves or blood vessels. The detailed model may also aid in uncovering the underlying causes of a jaw joint disorder or sleep apnea.
CT technology isn't the only advanced imaging system used in healthcare. Another is magnetic resonance imaging (MRI), which excites hydrogen atoms in water molecules. This produces different vibration rates in individual tissue structures, which are then translated into detailed images of these structures. Unlike CT or CBCT, MRI doesn't use x-ray energy, but rather a magnetic field and radio waves to produce the atomic vibrations.
But while providing good detail of soft tissues, MRI imaging doesn't perform as well as CBCT with harder tissues like bone or teeth. As to the potential risks of CBCT involving x-ray radiation exposure, dentists follow much the same safety protocols as they do with conventional x-rays. As such, they utilize CBCT only when the benefits far outweigh the potential x-ray exposure risks.
And, CBCT won't be replacing conventional x-rays any time soon—the older technology is often the more practical diagnostic tool for less invasive dental situations. But when a situation requires the most detailed and comprehensive image possible, CBCT can make a big difference.
If you would like more information on advanced dental diagnostics, 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 “Getting the Full Picture With Cone Beam Dental Scans.”