Posts for category: Oral Health
The CAT scan is a relatively recent technique in dentistry, used to get an image of what’s happening deep within your jaws. You may be wondering what a CAT scan tells us that a conventional x-ray picture does not, and whether it is worth the extra expense to get one. And how does a CAT scan compare with a conventional x-ray in terms of radiation exposure?
CAT stands for “computer assisted tomography.” Often it’s just called a CT scan, for “computerized tomography.” The word “tomography” comes from roots meaning “slice” and “write.” Tomographic techniques take repeated two dimensional pictures, similar to repeatedly slicing through an object, and then assembles them with a computer to produce a three dimensional (3-D) image.
The latest type of CT scan used in dentistry is called CBCT, or Cone Beam Computed Tomography. The Cone Beam refers to a spiral beam of x-rays, which is used to create a series of two dimensional images from which a computer creates a 3-D image. Such an image is of great value in assessing problems and planning treatment.
Here are just a few examples of how a CBCT scan can be used. Orthodontists can see skeletal structures and developing teeth that are still inside the jawbone while planning strategies for directing the teeth in order to arrive at a better bite. Oral surgeons can find impacted or missing teeth, see their locations, and view their proximity to nerves and sinuses, assisting them in planning surgeries. These scans are particularly useful for root canal specialists because they show root canals that are less than a millimeter wide and even reveal accessory canals that may not be visible on conventional x-rays. In cases of sleep disorders such as sleep apnea, a CBCT during sleep can be used to view a person’s airway and how it may be blocked by the tongue and other soft tissues in a person’s throat during sleep.
Compared to background radiation, the amount of radiation delivered in dental x-rays is minimal. A CBCT delivers a dose of radiation that is less than a typical full mouth x-ray series but more than a typical two dimensional panoramic radiograph. Generally CBCT scanners deliver lower doses than medical CT scanners.
With one low-dose CBCT scan, we can get an accurate idea of the internal structure of your bones and teeth and how they are situated in relation to each other. Prior to the availability of such images, many of these relationships had to be discovered in the course of a surgery or other treatment. Thus such a scan can aid greatly in the quality of treatment you will receive.
Basketball isn't a contact sport—right? Maybe once upon a time that was true… but today, not so much. Just ask New York Knicks point guard Dennis Smith Jr. While scrambling for a loose ball in a recent game, Smith's mouth took a hit from an opposing player's elbow—and he came up missing a big part of his front tooth. It's a type of injury that has become common in this fast-paced game.
Research shows that when it comes to dental damage, basketball is a leader in the field. In fact, one study published in the Journal of the American Dental Association (JADA) found that intercollegiate athletes who play basketball suffered a rate of dental injuries several times higher than those who played baseball, volleyball or track—even football!
Part of the problem is the nature of the game: With ten fast-moving players competing for space on a small court, collisions are bound to occur. Yet football requires even closer and more aggressive contact. Why don't football players suffer as many orofacial (mouth and face) injuries?
The answer is protective gear. While football players are generally required to wear helmets and mouth guards, hoopsters are not. And, with a few notable exceptions (like Golden State Warriors player Stephen Curry), most don't—which is an unfortunate choice.
Yes, modern dentistry offers many different options for a great-looking, long lasting tooth restoration or replacement. Based on each individual's situation, it's certainly possible to restore a damaged tooth via cosmetic bonding, veneers, bridgework, crowns, or dental implants. But depending on what's needed, these treatments may involve considerable time and expense. It's better to prevent dental injuries before they happen—and the best way to do that is with a custom-made mouthguard.
Here at the dental office we can provide a high-quality mouthguard that's fabricated from an exact model of your mouth, so it fits perfectly. Custom-made mouthguards offer effective protection against injury and are the most comfortable to wear; that's vital, because if you don't wear a mouthguard, it's not helping. Those "off-the-rack" or "boil-and-bite" mouthguards just can't offer the same level of comfort and protection as one that's designed and made just for you.
Do mouthguards really work? The same JADA study mentioned above found that when basketball players were required to wear mouthguards, the injury rate was cut by more than half! So if you (or your children) love to play basketball—or baseball—or any sport where there's a danger of orofacial injury—a custom-made mouthguard is a good investment in your smile's future.
If you would like more information about custom-made athletic mouthguards, please contact us or schedule an appointment for a consultation. You can learn more by reading the Dear Doctor magazine articles “Athletic Mouthguards” and “An Introduction to Sports Injuries & Dentistry.”
Fluoride is a critical weapon in the war against tooth decay. But this natural chemical proven to strengthen tooth enamel has also aroused suspicion over the years that it might cause health problems.
These suspicions have led to rigorous testing of fluoride's safety. And the verdict from decades of research? We've found only one verifiable side effect, a condition called enamel fluorosis. Caused by too much fluoride present in the body, enamel fluorosis produces white streaks and patches on teeth, and can develop into darker staining and pitting in extreme cases. But other than having an unattractive appearance, the teeth remain sound and healthy.
Fortunately, you can reduce the risk of fluorosis by limiting fluoride exposure to within recommended limits. Fluoride can show up in processed foods and other substances, but the two sources you should focus on most are oral hygiene products and fluoridated drinking water.
Dentists highly recommend using toothpaste with fluoride to fight tooth decay. But be careful how much your family uses, especially younger members. An infant only needs a slight smear of toothpaste on their brush for effective hygiene. At around age 2, you can increase the amount to about the size of a vegetable pea.
As to drinking water, most utilities add fluoride to their supply. If yours does, you can find out how much they add by calling them or visiting cdc.gov ("My Water's Fluoride"), where you can also learn more about recommended levels of fluoridation. If you think it's excessive, you can switch to water labeled "de-ionized," "purified," "demineralized," or "distilled," which contain little to no added fluoride.
Even if your fluoridated water is within recommended levels, you may wish to take extra precautions for infants nursing with formula. If possible, use "ready-to-feed" formula, which usually contains very low amounts of fluoride if any. If you're using the powdered form, use only water with the aforementioned labeling for mixing.
Before making any drastic changes that might affect your family's fluoride intake, consult with your dentist first. And be sure you're keeping up regular dental visits—your dentist may be able to detect any early signs of fluorosis before it becomes a bigger problem.
If you would like more information on maintaining the proper fluoride balance with your family, 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 “Tooth Development and Infant Formula.”
There are a number of lifestyle changes you can make if you want to reduce your risk of oral cancer, with quitting a tobacco habit at the top of the list. You should also moderate your alcohol consumption and practice safe sex to prevent the spread of the human papilloma virus (HPV 16) linked to oral cancer.
And there's one other area that might be ripe for change—your diet. The foods we consume can work both ways in regard to cancer: some, especially processed products with certain chemicals, increase your cancer risk; more natural foods, on the other hand, can help your body fight cancer formation.
Although how cancer forms and grows isn't fully understood, we do know some of the mechanisms involved. One major factor in cancer growth is damage to DNA, the molecule that contains all the instructions for normal cell growth. Certain chemicals called carcinogens cause much of this DNA damage.
One example of these dangerous chemicals are nitrosamines, found in substances used to preserve meats like bacon or ham. Nitrosamines also occur in beer during the brewing process, some fish and fish products, processed cheese and foods pickled with nitrite salt. It's believed long-term consumption of foods with these chemicals can increase the risk of cancer.
On the other hand, there are foods with substances called antioxidants that help our bodies resist cancer. Antioxidants protect cells from unstable molecules called free radicals that can also damage DNA. You'll find antioxidants in abundance in fresh fruits and vegetables, especially those high in fiber. Vitamins like C and E found in many natural foods also have antioxidant properties.
So, to help keep your risk of cancer and other diseases low, make sure your diet includes mostly fresh fruits and vegetables, along with plant-based fats found in nuts or olive oil. At the same time minimize your consumption of processed foods with preservatives and other chemicals, along with animal and saturated fats.
A change in eating not only reduces your cancer risk, it can also improve your overall health and well-being. You'll also find a healthy diet can be dental-friendly—it can help keep your teeth and gums disease-free and healthy.
If you would like more information on dental-friendly nutrition practices, 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 “Diet and Prevention of Oral Cancer.”
Human beings have known for millennia the importance of keeping teeth clean. Although we've only come to more fully understand dental plaque's role in dental disease in the last century, our ancestors seemed to know instinctively this gritty biofilm on teeth had to go.
People from the past once used a variety of substances like ground oyster shells or leftover fire ashes to remove plaque from their teeth. Today, most of the world has replaced these substances with toothpaste, a mainstay of daily oral hygiene.
So, why is toothpaste better than other substances used in the ancient past? Besides the many other ingredients found in the typical tube of toothpaste, here are the top 3 that make it the ultimate tooth cleaner.
Abrasives. While your toothbrush does most of the mechanical work loosening plaque, toothpaste has ingredients called abrasives that give an added boost to your brushing action. The ideal abrasive is strong enough to remove plaque, but not enough to damage tooth enamel. If you look at your toothpaste's ingredient list, you'll probably see an abrasive like hydrated silica (made from sand), hydrated alumina, calcium carbonate or dicalcium phosphates.
Detergents. Your toothpaste's foaming action is a sign of a detergent, which helps loosen and break down non-soluble (not dissolvable with plain water) food substances. While similar to what you may use to wash your clothes or dishes, toothpaste detergents are much milder, the most common being sodium lauryl sulfate found in many cosmetic items. If you have frequent canker sores, though, sodium lauryl sulfate can cause irritation, so look for a toothpaste with a different detergent.
Fluoride. The enamel strengthening power of fluoride was one of the greatest discoveries in dental care history. Although not all toothpastes contain it, choosing one with fluoride can improve your enamel health and help protect you from tooth decay.
These and other ingredients like binders, preservatives and flavorings, all go in to make toothpaste the teeth-cleaning, disease-fighting product we've all come to depend upon. Used as part of daily oral hygiene, toothpaste can help brighten and freshen your smile, and keep your teeth and gums healthy.
If you would like more information on using the right toothpaste, 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 “Toothpaste: What's in It?”