Recently, a number of new filling materials that mimic tooth color have come into popular use and, so far, have proven more durable than past versions. Even so, the traditional metal-based dental amalgam remains a viable choice, especially for less visible back teeth and their higher biting forces.
Used for more than a century, dental amalgam is a metal alloy composed of silver, mercury, tin and copper. The mixture is carefully proportioned so that potentially hazardous mercury is kept to a minimum and bonded with the other metals. Amalgam in its initial form is quite pliable so that it can be molded into the tooth structure under repair. Afterward it sets hard to form a durable filling that can withstand the daily force generated when we bite and chew food.
Besides durability, dental amalgam rarely causes an allergic reaction in a patient, and it’s easy for trained dentists to apply. On the downside, however, it can cause temporary temperature sensitivity in the tooth just after filling, and the tooth itself may require some removal of healthy structure to help keep the filling in place. And from an aesthetic point of view, its metallic appearance is considered unattractive especially for front teeth.
The presence of mercury in amalgam has also raised concerns over the years. “Free” mercury — atoms that escape through vapor emitted by the metal — can enter the bloodstream and potentially harm the nervous system. But after extensive study and research, U.S. and international health bodies including the American Dental Association have concluded any free mercury released during chewing is extremely low and well below any harmful levels. These studies have also found no ill effects in either children or adults with dental amalgam fillings.
Deciding on the type of filling material to use — dental amalgam or a newer composite resin, resin ionomer or glass ionomer — depends on a number of factors including the location of the teeth to be filled, the extent of decay and your personal preferences. Taking these into account, we’ll be happy to discuss which type of filling will suit you best for repairing decayed teeth.
If you would like more information on filling material options including 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?”
Oral appliances run the gamut from night guards and retainers to full or partial dentures. Millions of people depend on them for restoring or maintaining dental health.
Today's user-friendly appliances reflect the latest advances in technology. But that doesn't mean you can simply "place them and forget them." Their longevity depends on taking care of them.
The most important aspect of appliance care is keeping them clean. Although bacteria have no effect on an appliance's materials, they can accumulate on its surfaces and raise the risk your natural teeth and gums will be infected. To reduce that risk you should clean your appliance every day.
The best way is with a countertop ultrasonic cleaner. These units emit high frequency sound vibrations that loosen plaque (a thin film of bacteria and food particles) from even the appliance's tiniest crevices. Most units cost between $40 and $60, and pose less of a scratching risk to the appliance's surfaces than manual cleaning.
If you'd prefer to use a brush, there are some dos and don'ts to follow. You can use a cleaner especially designed for your appliance, but less expensive mild dish detergent or hand soap (with an antibacterial agent) will work too. Don't use toothpaste — most contain an abrasive ingredient for removing plaque from enamel that could leave microscopic scratches on your appliance. Use a soft-bristle toothbrush (but not the one you use for your natural teeth) or one designed for your appliance.
While boiling kills bacteria, the high heat can soften and warp the plastic material in an appliance. This could alter how the appliance fits in your mouth, making them loose and uncomfortable to wear. You should also avoid bleach: it can whiten acrylic or nylon designed to mimic the red color of real gum tissue.
Unless we've advised you otherwise, don't wear the appliance around the clock, a practice that raises the chances of bacterial accumulation. And be sure you also brush and floss your natural teeth every day.
Keeping both your mouth and your appliance clean helps ensure the best oral health possible — and that your appliance will last longer.
Great oral hygiene is built on two principal tasks — daily brushing and flossing. Brushing removes plaque — a thin film of bacteria and food particles — from broad tooth surfaces. Flossing removes plaque between your teeth you can’t reach effectively with brushing. It takes both tasks to get the most disease prevention benefit from your daily cleaning.
Many people, though, have a hard time incorporating the latter of the two into their daily routine. This may be because manual flossing with string seems to require a bit more manual dexterity, although it can be mastered with proper training and practice. Some, though, may not possess the physical ability to adequately floss. It’s also difficult for individuals wearing orthodontic braces or other appliances that cover teeth.
Fortunately, there’s an alternative to string floss: oral irrigation. This method removes plaque from between teeth with pulsating water pressurized by either a handheld or countertop device known as an oral irrigator or water flosser, and emitted through a special nozzle directed at the teeth. Studies have shown it to be an effective means for controlling plaque.
As to you switching to a home water flosser, we’ll be happy to discuss if it’s a good option for you. We can also train you on effective techniques for string flossing if you don’t feel you’re doing it properly.
Whichever method you use, it’s important for you to floss daily to keep plaque under control between your teeth. Along with brushing and regular dental visits, it’s one of the best things you can do to ensure your teeth stay healthy and free of tooth decay or periodontal (gum) disease.
If you would like more information on flossing, 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 “Cleaning Between Your Teeth.”
Celebrities’ controversial actions and opinions frequently spark fiery debates on social media. But actress Dakota Johnson lit a match to online platforms in a seemingly innocent way—through orthodontics.
This summer she appeared at the premier of her film The Peanut Butter Falcon missing the trademark gap between her front teeth. Interestingly, it happened a little differently than you might think: Her orthodontist removed a permanent retainer attached to the back of her teeth, and the gap closed on its own.
Tooth gaps are otherwise routinely closed with braces or other forms of orthodontics. But, as the back and forth that ensued over Johnson’s new look shows, a number of people don’t think that’s a good idea: It’s not just a gap—it’s your gap, a part of your own uniqueness.
Someone who might be sympathetic to that viewpoint is Michael Strahan, a host on Good Morning America. Right after the former football star began his NFL career, he strongly considered closing the noticeable gap between his two front teeth. In the end, though, he opted to keep it, deciding it was a defining part of his appearance.
But consider another point of view: If it truly is your gap (or whatever other quirky smile “defect” you may have), you can do whatever you want with it—it really is your choice. And, on that score, you have options.
You can have a significant gap closed with orthodontics or, if it’s only a slight gap or other defect, you can improve your appearance with the help of porcelain veneers or crowns. You can also preserve a perceived flaw even while undergoing cosmetic enhancements or restorations. Implant-supported replacement teeth, for example, can be fashioned to retain unique features of your former smile like a tooth gap.
If you’re considering a “smile makeover,” we’ll blend your expectations and desires into the design plans for your future smile. In the case of something unique like a tooth gap, we’ll work closely with dental technicians to create restorations that either include or exclude the gap or other characteristics as you wish.
Regardless of the debate raging on social media, the final arbiter of what a smile should look like is the person wearing it. Our goal is to make sure your new smile reflects the real you.
If you would like more information about cosmetically enhancing your smile, please contact us or schedule a consultation. To learn more, read the Dear Doctor magazine articles “Space Between Front Teeth” and “The Impact of a Smile Makeover.”
Think dental implants only replace individual teeth? Think again—this premier technology can also support other kinds of restorations to provide better stability and comfort. And, they also help improve bone health when incorporated with any type of tooth replacement options, especially dentures.
Although traditional dentures have enjoyed a long, successful history as a tooth replacement solution, they can interfere with bone health. That’s because regular dentures fit in the mouth by resting on the bony ridges of the jaw, which has implications for the bone.
As living tissue, bone goes through a growth cycle with older bone cells dying and dissolving and newer cells forming to take their place. The teeth play a role in this growth cycle — the forces generated when we chew travel up through the teeth and help stimulate bone growth. When teeth go missing, however, so does this stimulus.
Traditional dentures can’t replace this missing stimulus. In fact, the constant pressure of dentures on the jaw may even accelerate bone loss. A sign this is happening occurs when the dentures’ once tight fit begins to loosen and they become uncomfortable to wear.
Implant-supported dentures can help eliminate this problem. We first surgically place a few implants in the jaw, the number determined by which jaw (the lower requires less) and whether the denture is removable or fixed. If removable, the denture has connective points that match the implant locations — you simply connect them with the implants. If fixed, the denture is screwed into the implants to hold it in place.
So, how does this help bone health? For one, the denture no longer puts as much pressure on the jaw ridges—the main support comes from the implants. And, the implants themselves encourage bone stimulation: The titanium in the implant has a special affinity with bone cells that naturally grow and adhere to its metal surface. This natural integration between implant and bone can stop bone loss and may even help reverse it.
If you’re interested in implant-supported dentures, you’ll first need to undergo a full dental exam with your dentist. These restorations aren’t appropriate for all dental situations. But, if they can work for you, you may be able to enjoy the benefits of an implant-supported restoration.
If you would like more information on implant-supported restorations, 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 “Overdentures & Fixed Dentures.”
This website includes materials that are protected by copyright, or other proprietary rights. Transmission or reproduction of protected items beyond that allowed by fair use, as defined in the copyright laws, requires the written permission of the copyright owners.