One of the top concerns in public health today is exposure to the metallic element mercury within the environment. At abnormal levels, mercury can have a toxic effect on our nervous systems and cause other health problems.
These concerns over mercury have also increased attention on one material in dentistry that has included the metal in its makeup for over a century — dental amalgam for filling teeth. Amalgam is a metal alloy that can include, in addition to mercury, silver, tin, and copper. When first mixed dental amalgam is a moldable material used for fillings in prepared teeth. It then hardens into a durable restoration that can withstand biting forces.
While the use of amalgam has declined with the introduction of life-like colored fillings, it's still used for teeth like molars subject to high biting forces. With what we now know about the ill effects of mercury (which can make up to half of an amalgam mixture) is it safe to continue its use?
The American Dental Association has performed extensive research into amalgam safety. They've found that mercury is stabilized by the other metals in the amalgam. This prevents "free" molecules of mercury, the real source of harm to health, from escaping into the blood stream in the form of vapor. Although trace amounts of mercury vapor from the amalgam are released as a person chews, those levels are well below the threshold that could cause harm.
From a patient standpoint, the biggest drawback to dental amalgam isn't safety — it's the appearance of teeth it's used on. Silver fillings aren't considered attractive. And now there are viable filling alternatives that not only look like natural teeth but can withstand biting forces almost as well as amalgam. These materials include composite resins, mixtures of glass or quartz within resin, or glass and resin ionomers. Each of these has advantages and disadvantages depending on how and where they're applied.
After a thorough dental examination, we'll be able to advise you on what filling material will work best to produce the best result. And if we do suggest dental amalgam you can rest assured it will be a safe choice.
If you would like more information on the safety of dental amalgam, 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?”
Singer and actor Demi Lovato has a new claim to fame: formidable martial artist. When she is not in the recording studio, on stage or in front of the camera, Lovato can often be found keeping in shape at Jay Glazer's Hollywood (California) gym. Glazer, who is best known as a sports journalist, also runs conditioning programs for professional athletes and celebrities based on mixed martial arts. On March 6, Glazer got more than he bargained for when 5'3" Lovato stepped into the ring and knocked out his front tooth.
Glazer reportedly used super glue to put his tooth back together. Not a good idea! While it may not be convenient to drop everything and get to the dental office, it takes an expert to safely treat a damaged tooth. If you glue a broken tooth, you risk having to undergo major work to correct your temporary fix—it's no easy task to "unglue" a tooth, and the chemicals in the glue may damage living tooth tissue as well as the surrounding gum and bone.
Would you know what to do in a dental emergency? Here are some guidelines:
- If you chip a tooth, save the missing piece if possible. We may be able to reattach it.
- If your tooth is cracked, rinse your mouth with warm water, but don't wiggle the tooth around or bite down on it. If it's bleeding, hold clean gauze to the area and call our office.
- If your tooth is knocked loose or is pushed deeper into the socket, don't force the tooth back into position on your own. Immediate attention is very important.
- If your tooth is knocked out, there's a chance it can be reattached. Pick up the tooth while being careful not to touch the root. Then rinse it off and have either someone place into its socket, or place it against the inside of your cheek or in a glass of milk. Please call the office immediately or go to a hospital.
What's the best thing to do in an emergency? Call us right away, and DON'T super glue your tooth! You can prevent worse problems by letting a professional handle any dental issues. And if you've been living with a chipped, broken or missing tooth, call us to schedule an appointment for a consultation—there are several perfectly safe ways to restore your smile. Meanwhile, if you practice martial arts to keep in shape, think twice before getting into the ring with Demi Lovato!
Although techniques and materials have changed, dentists still follow basic principles for treating tooth decay that date from the late 19th Century. And for good reason: They work. These principles first developed by Dr. G.V. Black—the "father of modern dentistry"—are widely credited with saving millions of teeth over the last century.
One of the most important of these treatment protocols is something known as "extension for prevention." In basic terms, it means a dentist removes not only decayed tooth structure but also healthy structure vulnerable to decay. But although effective in saving teeth, practicing this principle can result in loss of otherwise healthy tissue, which can weaken the tooth.
But with new advances in dentistry, decay treatment is getting an overhaul. While Dr. Black's time-tested protocols remain foundational, dentists are finding new ways to preserve more of the tooth structure in a concept known as minimally invasive dentistry (MID).
Better diagnostic tools. Because tooth decay can ultimately infect and damage the tooth's interior, roots and supporting bone, the best way to preserve more of the tooth structure is to treat it as early as possible. Now, new diagnostic tools like digital x-rays, microscopic magnification and optical scanning are helping dentists detect and treat decay earlier, thus reducing how much tissue is removed.
Better prevention methods. Oral hygiene and regular dental care are our basic weapons in the war with tooth decay. In addition, utilizing topical fluoride in combination with a milk-derived product called CPP-ACP dentists can get more of the cavity-fighting organic compound into the tooth enamel to strengthen it against acid attack.
Better treatment techniques. Using air abrasion (a fine particle spray that works like a miniature sandblaster) and lasers, dentists can now remove decayed structure with less harm to healthy tissue than with a traditional dental drill. And new, stronger dental fillings like those made with composite resins require less structural removal to accommodate them.
With these innovative approaches, dentists aren't just saving teeth, they're preserving more of their structure. And that can improve your overall dental health for the long-term.
If you would like more information on minimally invasive dentistry, 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 “Minimally Invasive Dentistry: When Less Care is More.”
Roughly 75% of American adults are missing at least one tooth, mostly from disease, trauma or extraction for other dental reasons. A few missing teeth, though, never erupted in the first place.
It’s a rare occurrence, but sometimes people are born without certain teeth, usually back molars or premolars that may not be as visible. Occasionally, though, it’s the more visible upper lateral incisors positioned on either side of the central incisors (the two front teeth on either side of the midline of the face).
Missing incisors can lead to poor bites and create difficulties for speech development and nutrition. But these highly visible (or in this case, “invisible”) teeth can also detract from an otherwise attractive smile.
There are ways, however to correct a smile with missing lateral incisors. Here are 3 of those ways.
Canine substitution. We can fill the vacancy created by the missing incisors by orthodontically moving the canines (the “eyeteeth,” normally next to them) into the space. Braces can close the gap in a conservative way, while possibly correcting any existing bite problems. Because canines are larger than incisors, its often necessary to re-contour them and restore them with a crown, veneer or bonding material to look more natural.
Fixed bridge. A second way to fill the space is with a dental bridge. A bridge consists of a series of crowns fused together in a row. The middle crowns replace the missing teeth; the end crowns cap the natural teeth on either end of the gap, which establishes support for the bridge. Another variation is a cantilever bridge in which only one natural tooth is capped for support. With either type, though, the capped teeth will be permanently reduced in size to accommodate the crowns.
Dental implants. This popular restoration is also a favorite for correcting missing incisors. Implants provide a life-like and durable replacement for missing teeth, while not requiring any alterations to existing teeth as with a bridge. But they are more expensive than the other options, and they require adequate space between the adjacent teeth for insertion, as well as healthy bone for proper placement and anchorage. This is also an option that must wait until the jaw has fully matured in early adulthood.
If you would like more information on treating congenitally missing teeth, 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 “When Permanent Teeth Don't Grow: Treatment Options for Congenitally Missing Lateral Incisors.”
Pain is the body’s warning system: It tells us something is wrong. And depending on the location and intensity of the pain, it can give us vital clues about the problem.
Sometimes, though, it’s not so clear and direct—the pain could arise from any number of sources. Toothaches often fall into this category: Although it’s likely indicating a tooth or gum problem, it could be something else — or even somewhere else.
This is known as referred pain, in which you may feel pain in one location, like your mouth, but the actual source of the problem is somewhere else, like an infected and congested sinus passage. If we’re able to identify the true source and location of the pain, the better the chances of a successful treatment outcome.
Besides sinus infections, there are other conditions like trigeminal neuralgia that can refer pain to the mouth. This painful condition involves the trigeminal nerve, a large nerve running on either side of the face that can become inflamed. Depending on where the inflammation occurs, you might feel the pain at various points along the jaw, feeling much like a toothache.
There’s also the case of an earache mimicking a toothache, and vice-versa. Because of the proximity of the ears to the jaws, there is some nerve interconnectedness between them. For example, an infected or abscessed back tooth could feel a lot like an earache.
These and other possible problems (including jaw joint disorders or teeth grinding) can generate pain as if it were coming from the mouth or a single tooth. To be sure you’ll need to undergo a complete dental examination. If your dentist doesn’t find anything wrong with your mouth, he or she may refer you to a medical doctor to explore other possible causes.
Getting to the root cause of pain can help determine which treatment strategy to pursue to relieve it. Finding the actual source is the most efficient way to understand what a pain sensation is trying to tell us.
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