Posts for: May, 2018
One of the most widely used forms of dental imaging is the bitewing x-ray. So called because of the shape of the device that holds the exposable film a patient clenches between their back teeth, the bitewing x-ray is an effective means for detecting the earliest stages of tooth decay.
These early signs are small lesions on a tooth surface caused by mineral loss in the enamel. While we can identify them on front teeth through visual examination or bright lighting, they’re nearly impossible to see on the biting surfaces of back teeth. The bitewing x-ray solves this problem.
During the procedure, a narrow beam of x-rays is directed at the back teeth area. Since X-rays can transmit through solid matter, they pass through the teeth and gums to expose the film attached to the bitewing assembly.
X-rays pass through matter at different rates depending on the density of the tissue — a slower rate for harder tissues like teeth and bone and a faster rate for soft tissues like the gums. As a result, x-rays through teeth expose less of the film and appear as a lighter image than the gums. This difference is so precise even a tooth’s softer dentin appears slighter darker than its harder outer enamel.
This precision helps us identify decay lesions. Because the lesions on the enamel are less dense than the normal enamel, they’ll appear as dark spots. By detecting them at this stage we have a better chance for reversing the effects of decay or at least minimizing damage that’s already occurred.
Because x-rays emit radiation, there’s a natural concern about over-exposure and we go to great lengths to reduce it. Children may undergo a bitewing x-ray twice a year for developing teeth, while adults with healthy teeth are typically x-rayed just once a year. Advances in digital film and other technology have also helped lower the exposure rate.
Today’s standard 4-film bitewing x-ray produces about four days worth of what we receive on average from normal background radiation, so the health risk is quite negligible. The benefit, on the other hand, is much greater — the early detection of tooth decay could ultimately save a tooth.
What’s the first thing that comes to mind when you think of the month of May? Balmy breezes? Sweet-smelling flowers? How about root canal treatment?
The last item might seem out of place…but for the last ten years, Root Canal Awareness week has been celebrated in May. So let’s take a closer look at this important—and often misunderstood—dental procedure.
What we commonly call a “root canal” is a special treatment that can save diseased teeth which might otherwise be lost. But the root canal itself is actually a set of hollow, branching passages deep inside the hard outer tissue of the tooth. The tiny “canals” contain the tooth’s soft pulp, including nerves, blood vessels and connective tissue. These tissues help teeth grow during childhood but aren’t necessary in healthy adult teeth—and, what’s worse, they can become infected via deep cavity or a crack in the tooth’s outer layers.
When bacteria infect the pulp tissue, the inflammation often causes intense discomfort. In time, the harmful microorganisms can also pass through the tooth’s root and into the tissue of the jaw, resulting in a painful abscess. Eventually, if it isn’t treated, the tooth will likely be lost.
Root canal treatment is designed to remove the infection, relieve the pain…and save the tooth. It is usually performed under anesthesia for your comfort. To begin the procedure, a small hole is made in the tooth’s enamel to give access to the pulp; then, tiny instruments are used to remove the diseased tissue and disinfect the tooth. Finally, it is sealed up against re-infection. Following treatment, a cap (or crown) is often needed to restore the tooth’s full function and appearance.
Despite some rumors you may have heard, root canal treatment is neither very painful nor likely to cause other health problems. So if you come across these discredited ideas, remember that dentists and dental specialists called endodontists perform some 25 million root canal procedures every year—and this treatment method has been validated for decades.
Of course, like any medical procedure, root canal treatment is not 100% successful. While the procedure has a very high success rate, it’s possible that additional treatments will be needed in some cases. However, the alternative—extracting the tooth—has similar potential downsides; plus a replacement tooth will be needed to avoid the health and lifestyle troubles caused by missing teeth. But one thing is certain: Ignoring disease in the tooth’s soft tissues isn’t a good move, because the infection won’t go away on its own—and down the road it will only get worse.
So this May, while you’re taking time to smell the flowers, spare a thought for the often-misunderstood root canal. If you’d like more information on root canal treatment, please contact us or schedule a consultation. You can also learn more by reading the Dear Doctor magazine articles “A Step-By-Step Guide to Root Canal Treatment” and “Root Canal Treatment: What You Need to Know.”
When they’re introducing a new movie, actors often take a moment to pay tribute to the people who helped make it happen — like, you know, their dentists. At least that’s what Charlize Theron did at the premiere of her new spy thriller, Atomic Blonde.
"I just want to take a quick moment to thank my dentists," she told a Los Angeles audience as they waited for the film to roll. "I don’t even know if they’re here, but I just want to say thank you."
Why did the starring actress/producer give a shout-out to her dental team? It seems she trained and fought so hard in the action sequences that she actually cracked two teeth!
“I had severe tooth pain, which I never had in my entire life,” Theron told an interviewer from Variety. At first, she thought it was a cavity — but later, she found out it was more serious: One tooth needed a root canal, and the other had to be extracted and replaced with a dental implant — but first, a bone grafting procedure was needed. “I had to put a donor bone in [the jaw] to heal,” she noted, “and then I had another surgery to put a metal screw in there.”
Although it might sound like the kind of treatment only an action hero would need, bone grafting is now a routine part of many dental implant procedures. The reason is that without a sufficient volume of good-quality bone, implant placement is difficult or impossible. That’s because the screw-like implant must be firmly joined with the jawbone, so it can support the replacement tooth.
Fortunately, dentists have a way to help your body build new bone: A relatively small amount of bone material can be placed in the missing tooth’s socket in a procedure called bone grafting. This may come from your own body or, more likely, it may be processed bone material from a laboratory. The donor material can be from a human, animal or synthetic source, but because of stringent processing techniques, the material is safe for human use. Once it is put in place your body takes over, using the grafted material as a scaffold on which to build new bone cells. If jawbone volume is insufficient for implants, it can often be restored to a viable point in a few months.
Better yet, when grafting material is placed in the tooth socket immediately after extraction, it can keep most of the bone loss from occurring in the first place, enabling an implant to be placed as soon as possible — even before the end of a movie’s shooting schedule.
Will Atomic Blonde prove to be an action-movie classic? Only time will tell. But one thing’s for sure: When Charlize Theron walks down the red carpet, she won’t have to worry about a gap in her smile.
If you have questions about bone grafting or dental implants, please contact our office or schedule a consultation. You can read more in the Dear Doctor magazine articles “Dental Implant Surgery” and “Immediate Dental Implant.”