Posts for tag: x-rays
X-rays are so interwoven into dental care that we often don't think twice about them. Even so, we shouldn't take this invisible form of radiation lightly—regular exposure at high levels can affect the human body, especially in children.
The ability of x-rays to pass through tissue greatly improves our ability to diagnose tooth decay and other dental diseases. But x-rays can also potentially harm those same tissues. Because children are more sensitive to x-ray energy, they run a greater risk for cellular damage that could lead to cancer later in life.
In reality, though, these potential risks from x-rays are extremely low—so low, in fact, dental professionals regard their use as altogether safe for children. Here's why.
The ALARA principle. Dentists and other healthcare providers perform x-ray diagnostics based on a principle known as ALARA (“As low as reasonably achievable”). This means dentists only utilize x-rays to gain the most diagnostic benefit at the lowest amounts of radiation exposure. As such, ALARA guides both the development of x-ray equipment and the protocols involved in using them.
Equipment advances. Today's x-ray devices are safer and more efficient, restricting x-ray emissions to a single beam without scattering radiation into the environment. A child's radiation exposure is further lowered with the use of digital x-rays, which produce images in less time than conventional film. Because of these and other advances, children are exposed to less radiation during x-rays than what they typically receive in a day from the outside environment.
Safe practices. Following the ALARA principle, dentists are quite conservative in their use of x-rays in children. The most common means of x-ray is the bitewing, which captures images primarily of the back teeth that are more prone to decay. Bitewings, which require a lower x-ray dosage than a full mouth x-ray, are usually spaced at least six months apart or longer depending on a child's risk for dental disease.
The efficiency of modern radiographic equipment coupled with their judicious use has drastically reduced the amount of x-ray radiation to which a child may be exposed, thus lowering their risk of future health issues. The benefit for saving a child's teeth from disease is well worth their use.
If you would like more information on x-ray 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 Safety for Children.”
Imagine that the IRS wants to audit you, but the dog ate your receipts. Or you hit a $50 million Lotto jackpot, but your ticket went through the wash. Or maybe you're about to see your new dentist, but you don't have your past dental records.
Humdrum as they may seem, records are important—so much so that they have their own month. That's right: April is Records and Information Management Month. Though perhaps not as exciting as National Poetry Month, this is still a good time to consider how records keep your life and health on track—especially regarding your mouth.
Your dental records contain information on all your office visits, imaging (yep, all those x-rays), diagnoses and treatments. Just like other healthcare records, they're privacy-protected under The Health Insurance Portability and Accountability Act (HIPAA).
Your dental records may also contain information about other aspects of your overall health that could impact your long-term dental care. With all that information, dental records are important to your ongoing care, and should be available wherever you receive treatment—even if you change to a new dentist.
Which can happen? Your long-time dentist may retire—or maybe you move to another state. You may just decide you'd be happier with another dentist. But regardless of why your provider changes, your dental needs don't.
Without your records, your new dentist starts your care virtually from scratch, having to generate a new patient history and perform additional x-rays or examinations. And they won't have the benefit of nuances available to a dentist who may have treated you for a long time. But with your dental records in hand, they can often pick up where your other dentist left off without missing a beat.
It's in your oral health's best interest, then, to ensure your dental records transfer from your former dentist to your new one. Legally, these records are the property of the dentist, but you're entitled to a copy or to have them transmitted directly to another provider. You may, however, have to pay for any supplies and labor involved with printing, copying or mailing the records.
Do you feel awkward asking your former dentist to send your records to a new one? Not a problem—ask your new dentist to request them for you. Even if you have an unpaid balance, your former dentist is legally required to comply with the transfer.
When it comes to your oral health, “What is past is prologue.” The dental care you receive today and tomorrow depends on the care you received yesterday. Your dental records help make sure it's a seamless progression.
If you would like more information about the importance of dental records, please contact us or schedule a consultation.
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.