Posts for: February, 2019
X-rays are an important diagnostic tool in dentistry because of their ability to penetrate and pass through body tissues. Because they penetrate at different speeds depending on tissue density (shorter and thus darker on exposed film for soft tissues, longer and lighter for hard tissues like bone or teeth), we’re able to detect decay which appear as dark areas on x-ray film.
Without x-rays, the early detection and diagnosis of dental problems would be quite difficult. But despite its obvious benefits, it’s still a form of released energy that exposes patients to a certain amount of radiation. Since the potential health risk from radiation depends on the amount released (the dosage) and for how long and often a person is exposed, we must determine if the dosage and frequency from dental x-rays is a cause for concern.
It’s a common misconception to view any radiation exposure as dangerous. The truth is, however, we’re all exposed daily to radiation from the natural environment — about 2 to 4.5 millisieverts (the dosage measurement for radiation exposure) a year, or about 10 microsieverts (one-thousandth of a millisievert) every day.
In comparison, radiation exposure from routine dental x-rays is a fraction of this if measured over time. A set of four bitewing images of the back teeth produces 4 microsieverts of radiation, less than half the average daily exposure. One of the most comprehensive x-ray sets, a full mouth series of 18-20 images using “D” speed film, results in an exposure of 85 microsieverts, equaling about a week of normal radiation exposure.
These thoroughly researched rates help demonstrate that regular dental x-rays are relatively safe. What’s more, x-ray technology has continued to advance since first used in the mid-20th Century. With innovations in film and digital processing, today’s equipment produces only 80% of the radiation exposure of earlier machines. In effect, we’ve increased our capabilities to more accurately detect and diagnose issues through x-rays, while lowering the amount of radiation exposure.
Of course, a person’s annual exposure rate may differ from others. If you have concerns for yourself or your family about x-ray radiation exposure, please feel free to discuss this with us. Our primary goal is to improve your oral health without undue risk to your health in general.
If you would like more information on x-ray diagnostics and safety, 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 Frequency and Safety.”
There's no doubt about it — dentures have changed your life. Now you can eat and speak normally, and smile again with confidence. But if you're going to continue to benefit from your dentures, you'll need to take care of them. One of the best things you can do is not sleep with them in.
There are a couple of important reasons why you should take your dentures out when you go to bed. First, dentures tend to compress the bony ridges of the gums that support them. This contributes to the loss of the underlying bone, an occurrence common with missing teeth. Wearing dentures around the clock can accelerate this bone loss, which eventually loosens your denture fit.
Constant denture wearing also contributes to mouth conditions conducive to dental disease. You're more likely to develop tongue and denture plaque (a thin film of bacteria and food particles) that can cause gum inflammation or yeast development. The presence of the latter could also trigger a chronic response from your immune system that might make you more susceptible to other diseases.
Good oral hygiene is just as important with dentures as with natural teeth. Besides removing them at night, you should also take them out and rinse them after eating and brush them at least once a day with a soft tooth brush. And be sure to use regular dish or hand soap (especially antibacterial) or denture cleanser — toothpaste is too abrasive for denture surfaces.
It's also a good habit to store your dentures in water or, better, an alkaline peroxide solution. This will help deter plaque and yeast development. And don't forget the rest of your mouth: brush your tongue and gums with a very soft toothbrush (different from your denture brush) or clean them off with a damp cloth.
Taking care of your dentures will ensure two things. You'll lower your risk for disease — and you'll also help extend your dentures' life and fit.