Posts for: November, 2019
With all the new tooth-colored fillings for cavities, it's easy to overlook metal amalgam. While this mainstay of dental care for over a century might not be as attractive as composite resins or glass and resin ionomers, it still has the advantage of strength and durability.
Amalgam is a stable metal alloy usually made up of silver, tin, copper and mercury. The metals are proportioned and mixed precisely to guard against “free” mercury molecules, which could pose a health hazard. The mixture is pliable at first, but then sets hard once molded into the prepared area of the tooth.
Besides strength, amalgam's other advantages include low cost, high resistance to wear and biocompatibility (not toxic to the body or allergy-producing). At the same time, it can require more tooth structure removal to accommodate a filling and cause higher sensitivity to temperature for a while after installation. Its main disadvantage, however, is appearance — it's now considered unacceptable from an aesthetic point of view to use it in visible areas like the front teeth.
Because of this, materials resembling natural tooth color are coming into vogue, especially as their strength improves. Still, dental amalgam continues to play a useful role, especially in less visible back teeth with higher chewing forces.
One past concern about dental amalgam is the inclusion of mercury in the alloy. As mentioned before, mercury is hazardous in a “free” form when not knit microscopically with other metals; as such it can emit a vapor that could enter the bloodstream and damage the nervous system. But after several studies by various organizations, the American Dental Association has concluded amalgam's precise mixture prevents the mercury from taking this form: although some vapor is given off during chewing it's far too low in concentration to pose any danger.
Dental amalgam continues to be an effective choice for fillings. Whether it's the right choice for you will depend on the type and location of a tooth to be filled, and whether durability is a higher concern than appearance. If we do recommend an amalgam filling, you can be assured it's a safe and lasting choice.
If you would like more information on your choices for dental fillings, 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 “Silver Fillings — Safe or Unsafe?”
In our constant battle against infectious disease, the “enemy” is often too close for comfort: hospitals and other medical facilities must be ever vigilant against opportunistic infections their patients may contract while in their care.
Dental offices are no exception. Because even the simplest procedure — a dental cleaning, for example — may result in exposure, providers and patients alike face a possible health risk. We must be especially concerned with blood-borne viral infections — spread by person to person contact through blood — the most serious being hepatitis B and C, and HIV/AIDS.
Hepatitis is a viral inflammatory disease that disrupts the critical functions of the liver, particularly as it cleanses and regulates the blood, and cause serious bodily impairment or death. The virus can be transmitted when the blood from an infected person makes its way into the bloodstream of another person, mainly through cuts or a needle injection. Human immunodeficiency virus (HIV) can lead to the chronic condition AIDS that destroys the body’s immune system; it spreads mainly through sexual contact, as well as through person to person blood contact.
The best defense against the spread of these diseases in dental offices or other healthcare settings is to eliminate as much as possible any opportunity for blood-to-blood contact. To accomplish this, all healthcare providers, including dentists, are mandated by federal, state and local authorities to incorporate and follow routine safety precautions. The U.S. Center for Disease Control and Prevention (CDC) issues regularly updated comprehensive guidelines for protocols and procedures to disinfect and sterilize equipment and facilities.
We dentists and our clinical staffs are also mandated by state licensing boards to refresh our knowledge of infection control procedures through continuing education. Such procedures cover every aspect of infection control, from barrier protection — by way of gloves, masks or gowns — to instrument disinfection.
Protecting patients as well as providers from the spread of infection is one of our profession’s highest standards. As a result, incidents of infection among the 170,000 practicing dentists in the United States are rare. You can be assured, then, that we’re taking every precaution to keep you and your family safe from disease when you visit our office.
If you would like more information on dental office procedures to prevent the spread of infection, 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 “Infection Control in the Dental Office.”
You can't separate your oral health from your overall health. What's beneficial for your body in general is usually beneficial for your teeth and gums.
Take the foods you eat: good nutrition is essential to general health and well-being. But the same foods that keep the rest of your body healthy often do the same for your mouth—and those that are not so good for the rest of you are usually not good for your teeth and gums either.
Here are 4 different types of foods that positively impact both mouth and body.
Cheese and dairy. Dairy products are rich in calcium, essential for strengthening both your bones and your teeth. Cheese helps stimulate saliva and protects against calcium loss. Cow's milk contains minerals and proteins both your body and mouth needs. It also contains lactose, a less acidic sugar that doesn't contribute to tooth decay.
Plant foods. Vegetables and fruit are loaded with vitamins and nutrients that keep the body functioning normally. They also contain fiber: Not only is this good for your digestive system, it requires chewing to break it down in the mouth, which stimulates saliva. A good flow of saliva helps prevent your mouth from becoming too acidic and thus more prone to dental disease.
Black and green teas. A nice cup of hot tea isn't just soothing—it's rich in antioxidants that help fight disease in the body (and the mouth). Black tea also contains fluoride, which has been proven to strengthen enamel against acid attack.
Chocolate. There's both good and bad news about this perennial favorite. The good news is the polyphenolic compounds (a kind of antioxidant) in unrefined cocoa can protect against disease including tooth decay. The bad news is most processed chocolate is loaded with added sugar—not the healthiest substance for your body, and definitely not for your teeth. Try then to incorporate small amounts of chocolate in your diet, the lower the sugar content the better.
Eating nutritiously helps your body stay healthy and disease-free. And coupled with daily hygiene and regular dental visits, it's one of the best things you can do for your teeth and gums.
If you would like more information on nutrition and dental health, 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 “Nutrition and Oral Health: How Diet Impacts Dental and General Health.”