Posts for: August, 2016

By Beverly Claiborne DDS
August 29, 2016
Category: Dental Procedures
Tags: fillings  
MetalDentalAmalgamStillaSafeandEffectiveToothFilling

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?


By Beverly Claiborne DDS
August 21, 2016
Category: Dental Procedures
DrTravisStorkIfOnlyIdWornAMouthguard

If we could go back in time, we all probably have a few things we wish we could change. Recently, Dr. Travis Stork, emergency room physician and host of the syndicated TV show The Doctors, shared one of his do-over dreams with Dear Doctor magazine: “If I [could have] gone back and told myself as a teenager what to do, I would have worn a mouthguard, not only to protect my teeth but also to help potentially reduce risk of concussion.”

What prompted this wish? The fact that as a teenage basketball player, Stork received an elbow to the mouth that caused his two front teeth to be knocked out of place. The teeth were put back in position, but they soon became darker and began to hurt. Eventually, both were successfully restored with dental crowns. Still, it was a painful (and costly) injury — and one that could have been avoided.

You might not realize it, but when it comes to dental injuries, basketball ranks among the riskier sports. Yet it’s far from the only one. In fact, according to the American Dental Association (ADA), there are some two dozen others — including baseball, hockey, surfing and bicycling — that carry a heightened risk of dental injury. Whenever you’re playing those sports, the ADA recommends you wear a high-quality mouth guard.

Mouthguards have come a long way since they were introduced as protective equipment for boxers in the early 1900’s. Today, three different types are widely available: stock “off-the-shelf” types that come in just a few sizes; mouth-formed “boil-and-bite” types that you adapt to the general contours of your mouth; and custom-made high-quality mouthguards that are made just for you at the dental office.

Of all three types, the dentist-made mouthguards are consistently found to be the most comfortable and best-fitting, and the ones that offer your teeth the greatest protection. What’s more, recent studies suggest that custom-fabricated mouthguards can provide an additional defense against concussion — in fact, they are twice as effective as the other types. That’s why you’ll see more and more professional athletes (and plenty of amateurs as well) sporting custom-made mouthguards at games and practices.

“I would have saved myself a lot of dental heartache if I had worn a mouthguard,” noted Dr. Stork. So take his advice: Wear a mouthguard whenever you play sports — unless you’d like to meet him (or one of his medical colleagues) in a professional capacity…

If you would like more information about mouthguards, please contact us or schedule an appointment for a consultation. You can read more in the Dear Doctor magazine article “Athletic Mouthguards.”


By Beverly Claiborne DDS
August 06, 2016
Category: Dental Procedures
Tags: gum recession  
GraftingcanHelpRegenerateGumTissueLostThroughRecession

Gum recession — when the gum tissue covering teeth wears away — is a serious matter. If the roots become exposed you'll not only have increased sensitivity and possible discomfort, your teeth can become more susceptible to decay.

There are a number of reasons for gum recession, including overaggressive brushing and flossing, poor fitting appliances like dentures or braces, or genetics (inheriting a thin gum tissue type or poor tooth position). Perhaps the most common reason, though, is periodontal (gum) disease. Caused by bacterial plaque, a thin film of food particles that builds up on tooth surfaces, the disease weakens the gum tissues around teeth, causing them ultimately to detach and “roll up” toward the roots.

Treating the gum infection by removing the built-up plaque and calculus (hardened plaque deposits) will help stop recession or even reverse it.  As we remove plaque the infection subsides and the gums cease to be inflamed. If they haven't receded too far they may re-grow and renew their attachment to the teeth.

In other cases, though, the recession may have progressed too far and too rapidly toward root exposure. Gums in this condition may require tissue grafts to the recessed area to create or regenerate new tissue.

Most grafting techniques fall into one of two categories. The first is known as free gingival grafting where a thin layer of skin is removed or "freed" from the roof of the patient's mouth (the palate), shaped and then stitched to the recession site.

The second category is called connective tissue grafting, most often used to cover exposed roots. In this case the donor material is transplanted from the donor site to the recipient site, but the recipient site's tissue covers the donor connective tissue graft as it still maintains a physical attachment to the original location. The recipient site can thus maintain a blood supply, which can result in quicker, more comfortable healing than with free gingival grafting.

Connective tissue grafting does, however, require sophisticated microsurgical techniques, along with the surgeon's in-depth skill and art, to prepare both the donor and recipient sites. Allografts (donor skin from another person) may also be used as a donor tissue and placed beneath the recipient site tissue thereby avoiding a second surgical site.

Gum tissue grafting can be an intense undertaking, but the results can be astounding. Not only will restoring recessed gum tissues give your teeth a new lease on life, it will revitalize your smile.

If you would like more information on treatment for gum recession, 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 “Periodontal Plastic Surgery.”




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Beverly Claiborne, DDS

(510) 792-8765
39572 Stevenson Place Suite 127Fremont, CA 94539