Dr. Bob's Blog
DontWorryAboutDentalAmalgamItsSafeforTreatingCavities

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.

If you would like more information on updating your dental work, please contact us or schedule an appointment for a consultation.

ShareTheseTimelyDentalCareTipsWithYourCollege-BoundSonorDaughter

It's a “change” moment when your child leaves home to attend college for the first time. For many, it's the first time to truly be on their own. While that new autonomy can be exhilarating, it does require self-responsibility to avoid some nasty pitfalls that might snare them.

So, before you bid them adieu at the dorm, be sure to give them some good, old-fashioned parental advice. And that includes teeth and gum care: While it may not seem as urgent as other potential issues, failing to maintain oral health could eventually affect the rest of their health.

The most important thing they can do mouth-wise is to brush and floss every day—and see a dentist at least twice a year. Daily oral hygiene keeps plaque, a thin bacterial film on teeth most responsible for dental disease, from accumulating.

There are other habits that foster good oral health—like eating a well-balanced diet. Encourage them to eat “real” food: less on processed items and more on fresh fruits and vegetables. That includes keeping added sugar to a minimum—not only for good overall health, but to also deprive disease-causing oral bacteria of a favorite food source. And tell them to go easy on the sodas, sports and energy drinks loaded with acid that can damage enamel.

Don't forget to mention lifestyle practices that are best avoided. Tobacco use and excessive alcohol consumption can make the mouth more susceptible to diseases like tooth decay and periodontal (gum) disease. And even if oral piercings are all the rage on campus, any hardware worn in the mouth could cause chipped teeth and contribute to gum recession.

And if you've already had the “talk” with them, you should still review the facts of life one more time. There just happens to be a connection with this particular subject and their mouth—unsafe sexual practices could leave them vulnerable to the human papilloma virus (HPV16) that could increase their oral cancer risk.

College is both an exciting and challenging time. If your new student follows these timely oral care tips, they can avoid teeth and gum problems that could linger for years to come.

If you would like more information helping your college-bound student maintain good oral 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 “10 Health Tips for College Students.”

WearingaRetainerWillProtectYourNewSmileAfterBraces

After living with braces for a couple of years, the “big reveal” finally happens and you see your new smile for the first time. But then you’re told you have to wear another mouth appliance—around the clock to start and then just at night. After all the new smile excitement, wearing a retainer can be a little anticlimactic.

But this part of your orthodontic treatment is as important as the earlier tooth movement phase. That’s because your new “forever smile” doesn’t necessarily come with a “forever” guaranty. In fact, your teeth could quickly begin moving back to where they were before braces if you don’t wear a retainer.

The reason why is because of a tough but elastic gum tissue called the periodontal ligament. This ligament lies between the teeth and the jawbone, attaching to both through tiny extending fibers. The periodontal ligament actually does most of the anchoring work to hold your teeth in place.

The ligament is also why we’re able to move your teeth to different positions: As braces apply pressure to the teeth and jaw in the direction of desired movement, the ligament remodels itself to allow the teeth to take up these new positions.

The tissues involved, though, still retain a kind of “memory” of where the teeth used to be. This creates an immediate tendency for the teeth to revert to these old positions. To prevent this, we use a retainer that when worn keeps or “retains” the teeth in their new positions until they’ve stabilized and the old tissue “memory” fades.

There are different types of retainers, some removable and some fixed in place. Choosing the best one for a particular patient will depend on the complexity of the bite treatment, the patient’s age and level of self-responsibility and the preferences of the orthodontist. Whichever type of retainer you eventually use, it’s important you wear it to preserve all of the time and effort that went into transforming your smile.

Wearing a retainer might not be high on your “exciting things to do” list. But it’s the best way to guarantee you’ll enjoy your new smile for years to come.

If you would like more information on keeping your new smile after braces, 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 “The Importance of Orthodontic Retainers.”

NBCStarDeliversaMessageaboutthePerfectSmile

Sometimes it seems that appearances count for everything—especially in Hollywood. But just recently, Lonnie Chaviz, the 10-year-old actor who plays young Randall on the hit TV show This Is Us, delivered a powerful message about accepting differences in body image. And the whole issue was triggered by negative social media comments about his smile.

Lonnie has a noticeable diastema—that is, a gap between his two front teeth; this condition is commonly seen in children, but is less common in adults. There are plenty of celebrities who aren’t bothered by the excess space between their front teeth, such as Michael Strahan, Lauren Hutton and Vanessa Paradis. However, there are also many people who choose to close the gap for cosmetic or functional reasons.

Unfortunately, Lonnie had been on the receiving end of unkind comments about the appearance of his smile. But instead of getting angry, the young actor posted a thoughtful reply via Instagram video, in which he said: “I could get my gap fixed. Braces can fix this, but like, can you fix your heart, though?”

Lonnie is raising an important point: Making fun of how someone looks shows a terrible lack of compassion. Besides, each person’s smile is uniquely their own, and getting it “fixed” is a matter of personal choice. It’s true that in most circumstances, if the gap between the front teeth doesn’t shrink as you age and you decide you want to close it, orthodontic appliances like braces can do the job. Sometimes, a too-big gap can make it more difficult to eat and to pronounce some words. In other situations, it’s simply a question of aesthetics—some like it; others would prefer to live without it.

There’s a flip side to this issue as well. When teeth need to be replaced, many people opt to have their smile restored just the way it was, rather than in some “ideal” manner. That could mean that their dentures are specially fabricated with a space between the front teeth, or the crowns of their dental implants are spaced farther apart than they normally would be. For these folks, the “imperfection” is so much a part of their unique identity that changing it just seems wrong.

So if you’re satisfied with the way your smile looks, all you need to do is keep up with daily brushing and flossing, and come in for regular checkups and cleanings to keep it healthy and bright. If you’re unsatisfied, ask us how we could help make it better. And if you need tooth replacement, be sure to talk to us about all of your options—teeth that are regular and “Hollywood white;” teeth that are natural-looking, with minor variations in color and spacing; and teeth that look just like the smile you’ve always had.

Because when it comes to your smile, we couldn’t agree more with what Lonnie Chaviz said at the end of his video: “Be who you want to be. Do what you want to do. Do you. Be you. Believe in yourself.”

If you have questions about cosmetic dentistry, please contact our office or schedule a consultation. You can read more in the Dear Doctor magazine articles “Beautiful Smiles by Design” and “The Magic of Orthodontics.”

DontPanicOverYourChildsTeethGrindingbutDoKeepanEyeonIt

First the bad news: Those nightly hair-raising sounds are indeed coming from your child’s bedroom—from your child. It’s the result of them grinding their teeth while they sleep.

But here’s the good news: the only likely harm is a lack of sleep members of your household might experience because of it. Teeth grinding is so prevalent among pre-teen children that many healthcare professionals consider it normal. But that doesn’t mean it can’t become a problem, so it’s worth monitoring.

Teeth grinding is part of a family of dental habits known as bruxism. It involves any involuntary movement of the teeth and jaws outside of their intended functions not associated with chewing, speaking or swallowing. Our main concern with any bruxism is the possibility for generating stronger biting forces than normal that could damage teeth and gums and contribute to jaw joint problems.

Teeth grinding can occur in adulthood, with stress seeming to be the major trigger for it. With children, though, it’s believed to be mainly caused by an immaturity of the child’s neuromuscular process that controls chewing. As this matures, most children will tend to outgrow the habit none the worse for wear.

But there are pediatric cases in which the generated biting forces are strong enough to cause damage. Teeth grinding is also prevalent in children who snore or breathe through their mouths, which could be a sign of a serious health condition called obstructive sleep apnea. And certain medications used to treat depression and attention deficit disorder (ADHD) may also contribute to teeth grinding.

Most of the time we can simply let the habit run its course. If, however, the child begins to experience abnormal tooth wear, headaches, jaw pain or other issues believed caused by teeth grinding, we may need to intervene. This could include a plastic night guard the child wears during sleep that prevents the teeth from making solid contact during grinding episodes. And children with signs of airway obstruction should be evaluated by an ear, nose and throat specialist.

It can be irritating or even distressing. But your child’s teeth grinding doesn’t mean you should be alarmed—only that you should keep your eye on it.

If you would like more information on teeth grinding and similar habits, 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 Children Grind Their Teeth.”

YourQuestforaDentalImplantMightBeInterruptedbyBoneLoss

Years ago, disease or trauma robbed you of one of your teeth. At the time you might have opted for an affordable solution, like a partial denture. But now you'd like to restore that missing tooth with a dental implant, the most life-like tooth replacement available.

That's a great decision. But there may be a hiccup along the way to your new implant: the state of the underlying jawbone. Implants need a certain amount of bone for proper placement. If not enough is present, that may cause an interruption in your plans—and that could be a real possibility if your tooth has been missing for some time.

That's because, like other living tissues, bone has a growth cycle: Old bone cells die and dissolve, while new cells form to take their place. In the jaw, the force produced by teeth during chewing helps to keep this growth process in the bone functioning at a healthy pace.

When a tooth goes missing, though, so does this chewing stimulation. A lack of stimulation can slow the growth rate for that part of the bone and its volume can diminish over time. It's possible for a quarter of the bone volume to be lost within the first year after losing a tooth.

If you've experienced that level of bone loss, we may not be able to place an implant—yet. You might still have a few options. For one, we could attempt to regenerate some of the bone through grafting. Bone material grafted into the affected area can serve as a scaffold for new bone cells to form and adhere. Over time, this could result in a sufficient amount of regenerated bone to support a dental implant.

Another possibility might be to install a smaller diameter implant like those used to support removable dentures. Because they're smaller they require less bone than standard-sized implants. They're not for every situation, though, and are best suited for situations where aesthetics isn't a priority.

To know what your options are regarding an implant-based restoration, you'll need to undergo a thorough evaluation of your oral health, including supporting bone. Depending on your situation, you may still be able to renew your smile with this premier tooth replacement option.

If you would like more information on dental implants, 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 After Previous Tooth Loss.”

3ReasonsWhyCorrectingaPoorBiteIsWorthwhileatAnyAge

October is National Orthodontic Health Month, and the more than 18,000 members of the American Association of Orthodontists want you to know the importance of a good bite. Correcting a bite problem can do wonders for your health and well-being—and the added benefit of a more attractive smile can do wonders for your self-image and relationships.

Perhaps, though, you’re well past your teenage years and think you might be too old to consider having your teeth straightened. Not at all: Even if you’re a senior adult, you can still undergo bite correction as long as your overall periodontal health is sound.

But then why go through the effort and expense of orthodontic treatment? Here are 3 top reasons why correcting a poor bite is worth it at any age.

Improve digestion. As we chew during eating, our teeth turn food into digestible bits that our body can easily process for nutrients. Misaligned teeth, though, aren’t as efficient at this first step in the digestion process, causing less efficiency at retrieving nutrients along the way. Correcting your bite could therefore improve your digestion and your health.

Prevent dental disease. While you need to brush and floss every day to prevent tooth decay or gum disease, it’s a lot easier if your teeth are properly aligned. Crooked teeth are more prone to collect and harbor disease-causing plaque that can “hide” from brushing and flossing. Correcting your bite can make it easier to remove plaque, thereby decreasing your risk of a tooth-destroying infection and gum disease that can contribute to chronic inflammation in the body.

Renew your confidence. While the previous two therapeutic reasons are primary for orthodontic treatment, don’t discount the power of an improved smile. Gaining a more attractive smile can boost your confidence in social and business situations—which could change your life. Consider it the added “cherry on top” that accompanies better health and wellness when you correct your bite.

If you’re interested in a healthier life and a more attractive smile, see us for a complete orthodontic evaluation. Even if you’re an older adult, you may still be a good candidate for bite correction. And you might not even need to wear braces: depending on your condition, we may be able to correct your bite with clear aligners that are nearly invisible to others while you’re wearing them.

There are good reasons for improving your bite. The sooner you do, the greater the benefits to your health and confidence.

If you would like more information about orthodontic treatment, please contact us to schedule a consultation. To learn more, read the Dear Doctor magazine articles “Moving Teeth With Orthodontics” and “Orthodontics for the Older Adult.”

HowBigBangTheoryActressMayimBialikGetsHerKidstoFloss

How many actresses have portrayed a neuroscientist on a wildly successful TV comedy while actually holding an advanced degree in neuroscience? As far as we know, exactly one: Mayim Bialik, who plays the lovably geeky Amy Farrah Fowler on CBS' The Big Bang Theory… and earned her PhD from UCLA.

Acknowledging her nerdy side, Bialik recently told Dear Doctor magazine, “I'm different, and I can't not be different.” Yet when it comes to her family's oral health, she wants the same things we all want: good checkups and great-looking smiles. “We're big on teeth and oral care,” she said. “Flossing is really a pleasure in our house.”

How does she get her two young sons to do it?

Bialik uses convenient pre-loaded floss holders that come complete with floss and a handle. “I just keep them in a little glass right next to the toothbrushes so they're open, no one has to reach, they're just right there,” she said. “It's really become such a routine, I don't even have to ask them anymore.”

As many parents have discovered, establishing healthy routines is one of the best things you can do to maintain your family's oral health. Here are some other oral hygiene tips you can try at home:

Brush to the music — Plenty of pop songs are about two minutes long… and that's the length of time you should brush your teeth. If brushing in silence gets boring, add a soundtrack. When the music's over — you're done!

Flossing can be fun — If standard dental floss doesn't appeal, there are many different styles of floss holders, from functional ones to cartoon characters… even some with a martial-arts theme! Find the one that your kids like best, and encourage them to use it.

The eyes don't lie — To show your kids how well (or not) they are cleaning their teeth, try using an over-the-counter disclosing solution. This harmless product will temporarily stain any plaque or debris that got left behind after brushing, so they can immediately see where they missed, and how to improve their hygiene technique — which will lead to better health.

Have regular dental exams & cleanings — When kids see you're enthusiastic about going to the dental office, it helps them feel the same way… and afterward, you can point out how great it feels to have a clean, sparkling smile.

For more information about oral hygiene, please contact our office or schedule a consultation. You can read the interview with Mayim Bialik in the latest issue of Dear Doctor magazine.





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