Dental amalgam—also known as “silver fillings”—has been used for nearly a hundred years to treat cavities. There are several reasons why this mixture of metals has been the go-to material among dentists: Malleable when first applied, dental amalgam sets up into a durable dental filling that can take years of biting forces. What’s more, it’s stable and compatible with living tissue.
But there’s been growing concern in recent years about the safety of dental amalgam, with even some wondering if they should have existing fillings replaced. The reason: liquid mercury.
Mercury makes up a good portion of dental amalgam’s base mixture, to which other metals like silver, tin or copper are added to it in powder form. This forms a putty that can be easily worked into a prepared cavity. And despite the heightened awareness of the metal’s toxicity to humans, it’s still used in dental amalgam.
The reason why is that there are various forms of mercury and not all are toxic. The form making headlines is known as methylmercury, a compound created when mercury from the environment fuses with organic molecules. The compound builds up in the living tissues of animals, particularly large ocean fish, which have accumulated high concentrations passed up through their food chain.
That’s not what’s used in dental amalgam. Dentists instead use a non-toxic, elemental form of mercury that when set up becomes locked within the amalgam and cannot leach out. Based on various studies, treating cavities with it poses no health risks to humans.
This also means there’s no medical reason for having an existing silver fillings removed. Doing so, though, could cause more harm than good because it could further weaken the remaining tooth structure.
The most viable reason for not getting a dental amalgam filling is cosmetic: The metallic appearance of amalgam could detract from your smile. There are newer, more life-like filling options available. Your dentist, though, may still recommend dental amalgam for its strength and compatibility, especially for back teeth. It’s entirely safe to accept this recommendation.
Since their introduction over thirty years ago, dental implants have become the most popular choice for dental restoration. Their large variety of shapes and sizes — a far cry from the limited choices of the 1980s — has only served to increase their popularity.
In recent years there's also been an expansion in their applicability. Most people recognize them as replacements for individual teeth — but they can do much more. They're now playing a pivotal role in other dental restorations or situations.
Here are 3 of those “cutting edge” ways implants could change your dental health and smile for the better.
Fixed bridgework. In a traditional bridge, prosthetic (false) teeth use the natural teeth on either side of the empty space for support. In this updated version, implants become the support base for the bridge. For example, a bridge as small as three crowns can be supported by two implants attached to the outside crowns of the bridge. Four to eight implants can support a bridge as large as an entire arch of teeth.
Over-dentures. In cases of significant bone loss, a full or partial denture may be a better option than a fixed bridge. Traditional dentures, though, can contribute to even more bone loss, which can cause the dentures to eventually lose their fit. Implants not only can help stop further bone loss but can also stimulate increased bone density. Two or more standard or mini-sized-sized implants can support a full or partial denture.
Orthodontics anchorage. People with missing teeth aren't the only ones who can benefit from implants. While most bite repairs only require the back teeth to provide anchorage for braces, certain complex bites may need a different point of anchorage. Orthodontists can create a more feasible anchorage point with an implant or a temporary anchorage device (TAD) imbedded in the jaw. This can help isolate teeth that need to be moved from those on the arch that don't.
If you would like more information about how dental implants could improve your dental health and appearance, 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 “Dental Implants: Your Best Option for Replacing Teeth.”
The Golden Globes ceremony is a night when Hollywood stars shine their brightest. At the recent red-carpet event, leading man Viggo Mortensen had plenty to smile about: Green Book, the movie in which he co-starred, picked up the award for Best Motion Picture—Musical or Comedy. But fans looking at the veteran actor's big smile today might not realize that it once looked very different. A few years ago, an accident during the filming of The Two Towers took a major chip out of Mortensen's front tooth!
That might be OK for some movies (think The Hangover or Dumb and Dumber)—but it's not so great for everyday life. Fortunately, Mortensen visited a dentist promptly, and now his smile is picture-perfect. How was that accomplished? He didn't say…but generally, the best treatment for a chipped tooth depends on how much of the tooth's structure is missing.
If the tooth has only a small chip or crack, it's often possible to restore it via cosmetic bonding. This procedure can be done right in the dental office, frequently in a single visit. Here's how it works: First the tooth is cleaned and prepared, and then a tooth-colored resin is applied to the area being restored. After it is cured (hardened) with a special light, additional layers may be applied to build up the missing structure. When properly cared for, a tooth restored this way can look good for several years.
For a longer-lasting restoration, veneers may be recommended. These are wafer-thin shells made of durable material (most often porcelain) that cover the front (visible) surfaces of teeth. Strong and lifelike, veneers can match the exact color of your natural teeth—or give you the bright, high-wattage smile you've always wanted. No wonder they're so popular in Hollywood! Because veneers are custom-made for you, getting them may require several office visits.
If a chip or crack extends to the inner pulp of the tooth, a root canal procedure will be needed to keep the tooth from becoming infected—a situation that could have serious consequences. But you shouldn't fear a root canal! The procedure generally causes no more discomfort than filling a cavity (though it takes a little longer), and it can help save teeth that would otherwise be lost. After a root canal, a crown (cap) is generally needed to restore the visible part of the tooth.
When a damaged tooth can't be restored, it needs to be extracted (removed) and replaced. Today's best option for tooth replacement is a dental implant—a small, screw-shaped post inserted into the bone of your jaw that anchors a lifelike, fully functional crown. Implants require very little special care and can look great for many years, making them a top choice for tooth replacement
If you have questions about chipped or damaged teeth, please contact our office or schedule a consultation. You can read more in the Dear Doctor magazine articles “Artistic Repair Of Front Teeth With Composite Resin” and “Porcelain Veneers.”
As with most Western countries, we in the U.S. love our carbs. While fats and proteins make an appearance in our diets, many of us go full-tilt on sugars, starches and fibers.
Regardless of what some diet gurus say, we do need these organic compounds to generate energy for our cells. But carbs can also fuel inflammation: This is a mechanism in the body that isolates and protects healthy tissues from damaged tissues or toxins. Chronic inflammation, though, contributes to systemic conditions like diabetes, heart disease and, yes, gum disease.
And it's not just a matter of too many carbs in your diet. Not all carbs are equal: Some can actually stimulate inflammation, making conditions like gum disease worse. Others, though, might actually help decrease inflammation.
So, in terms of your gum health in particular, how do you know which carbs are better for you and which are worse?
It depends on their ranking on the glycemic index, a measure of how fast the body digests a particular carbohydrate to form glucose, the blood sugar that fuels our cells. The faster the digestion (higher on the glycemic index), the more likely they'll overload the bloodstream with glucose, requiring the release of the hormone insulin to bring the levels back to normal. Continuous insulin increases ultimately lead to higher inflammation.
High glycemic foods include those with added sugar, bakery items made with white flour, white rice or mashed potatoes. But there are also carb foods low on the glycemic scale—most vegetables, greens, beans, nuts and whole grains—whose slower digestive rates avoid the big blood sugar spikes and excessive insulin—and actually hinder inflammation.
So, if you want to control inflammation, reduce your consumption of high glycemic foods like chips, French fries, cookies and similar items. Instead, eat low glycemic foods like apples, bulgur wheat products, oatmeal, and other fruits, vegetables, legumes and nuts.
In short: steer clear of processed foods with added sugar, and indulge yourself in fresh “real” food. These also have the added bonuses of minerals, vitamins and antioxidants that keep your body functioning normally. And that can also make a big difference toward keeping your gums healthy and disease-free.
If you would like more information on diet 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 “Carbohydrates Linked to Gum Disease.”
Pregnancy is a very special and exciting time for expectant women and their families. At this time, many moms-to-be make careful choices to try and do what’s best for themselves and their babies. Wondering what’s the right way to take care of your oral health when you’re expecting? Here are answers to a few of the most common questions about dental care during pregnancy.
Q: Does pregnancy make a woman more susceptible to dental problems?
A: Yes. Pregnancy causes big changes in the levels of certain hormones, and these in turn have a powerful influence on your body. For example, many expectant moms experience food cravings and morning sickness at certain times. Changing hormone levels can also affect your oral health in various ways, including making your gums tender, swollen, and highly sensitive to the harmful bacteria in plaque.
Q: What are “pregnancy tumors” in the mouth?
A: These are benign (non-cancerous) overgrowths of tissue that sometimes develop on the gums during the second trimester. Often appearing between the teeth, these swollen reddish growths are thought to be caused by plaque bacteria. They sometimes go away on their own when pregnancy is over, but may be surgically removed if they don’t.
Q: Is it normal to have bleeding gums during pregnancy?
A: It’s not uncommon, but it does indicate that you need to pay careful attention to your oral hygiene at this time. Pregnancy hormones can cause the tiny blood vessels in your gums to become enlarged; when plaque bacteria are not effectively removed from the mouth, the gums may become inflamed and begin to bleed. This condition is often called “pregnancy gingivitis.” If left untreated, it can progress to a more serious form of gum disease called periodontitis. That’s one reason why regular brushing and flossing are so important during pregnancy — as are routine professional cleanings.
Q: Is it safe to have dental cleanings and checkups during pregnancy?
A: Yes; in fact, it’s a very good idea to have at least one. Studies have shown that women who receive dental treatment during pregnancy face no more risks to their developing babies than those who don’t. On the other hand, poor oral health is known to cause gum disease, and is also suspected of being linked to adverse pregnancy outcomes. Routine dental exams and professional cleanings can help you maintain good oral health and avoid many potential problems during this critical time.
Q: Should I postpone more complicated dental work until after I have a baby?
A: It depends. A study recently published in the Journal of the American Dental Association found it was safe for pregnant women to have routine procedures like fillings, root canals, and extractions, even if they require local anesthesia. So treatments that are essential to an expectant mother’s health shouldn’t be put off. However, if you’re planning to have cosmetic dental work, it might be best to err on the side of caution and wait until after your baby is born.
Have more questions about oral health during pregnancy? Contact our office or schedule a consultation — and be sure to let us know that you are pregnant, so we can make sure you get the extra attention you need. You can learn more in the Dear Doctor magazine article “Pregnancy and Oral Health.”
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