If you know anything about dental disease, then you know bacteria ranks high on the Usual Suspects list. Tooth decay gets its start from acid produced by bacteria; periodontal (gum) disease is often triggered by bacteria that infect the gums.
But the particular strains of bacteria that can cause dental disease are a small percentage of the 10,000-plus species inhabiting your mouth. The rest, numbering in the millions, are fairly benign—and some, as recent research is now showing, play a sizeable role in protecting your teeth and gums against other malicious bacteria, fungi and viruses.
Dr. Aaron Weinberg, a dental researcher at Case Western Reserve University, has been investigating these protective bacteria for many years. His research began with a scientific conundrum: although the mouth has one of the highest densities of bacterial populations, wounds in the mouth tend to heal quickly.
The answer, he believes, originates with human beta defensins (hBDs), substances produced by cells in the lining of the mouth that are natural antibiotics against disease. He has found that certain bacteria actually help stimulate their production.
This isn't just an interesting fact about the body's defenses and immune system. During his research, Dr. Weinberg was able to identify the agent within the bacteria that triggered hBD production. This has opened up a new line of research: The possibility that harnessing this agent might help assist in our treatment of infection by boosting the body's defensive capabilities.
For example, researchers have proposed including a form of the agent in toothpaste. Over time, this might stimulate hBD production and guard the mouth against the development of dental diseases like gum disease.
These possibilities all come from our increasing knowledge and understanding of the microscopic world around us, especially in our mouths. Bacteria are much more complex than we may have realized—not all are our enemies, and some are definitely our friends. Learning more may open up new ways to keep our teeth and gums healthy.
Multi-platinum recording artist Janet Jackson has long been known for her dazzling smile. And yet, Jackson admitted to InStyle Magazine that her trademark smile was once a major source of insecurity. The entertainer said, “To me, I looked like the Joker!” It was only after age 30 that the pop icon came to accept her unique look.
Jackson is not alone. A study commissioned by the American Association of Orthodontists found that more than one third of U.S. adults are dissatisfied with their smile. But there’s good news—modern dentistry can correct many flaws that can keep you from loving your smile, whether you’re unhappy with the color, size, or shape of your teeth. Here are some popular treatments:
Professional teeth whitening: Sometimes a professional teeth whitening will give you the boost you need. In-office whitening can dramatically brighten your smile in just one visit.
Tooth-colored fillings: If you have silver-colored fillings on teeth that show when you smile, consider replacing them with unnoticeable tooth-colored fillings.
Dental bonding: If you have chipped, cracked, or misshapen teeth, cosmetic bonding may be the fix you’re looking for. In this procedure, tooth colored material is applied to the tooth’s surface, sculpted into the desired shape, hardened with a special light, and polished for a smooth finish.
Porcelain veneers: Dental veneers provide a natural-looking, long-lasting solution to many dental problems. These very thin shells fit over your teeth, essentially replacing your tooth enamel to give you the smile you desire.
Replacement teeth: Is a missing tooth affecting your self-confidence? There are several options for replacing missing teeth, from a removable partial denture to a traditional fixed bridge to a state-of-the-art implant-supported replacement tooth. Removable partial dentures are an inexpensive way to replace one or more missing teeth, but they are less stable than non-removable options. Dental bridges, as the name implies, span the gap where a tooth is missing by attaching an artificial tooth to the teeth on either side of the space. In this procedure, the teeth on both sides of the gap must be filed down in order to support the bridgework. Dental implants, considered the gold standard in tooth replacement technology, anchor long-lasting, lifelike replacements that function like natural teeth.
After coming to embrace her smile, Jackson asserted, “Beautiful comes in all shapes, sizes, and colors." If you don’t feel that your smile expresses the beauty you have inside, call our office to schedule a consultation. It’s possible to love your smile. We can help.
For more information, read Dear Doctor magazine article “How Your Dentist Can Help You Look Younger.”
Today’s dental care has advanced leaps and bound over the last century. But these advances are tiny steps compared to what many believe may be coming in the next few decades. This optimism arises from our growing understanding of deoxyribonucleic acid (DNA), the chain-like molecule that houses the genetic instructions for the growth, function and reproduction of every cell in the body.
As researchers unlock the secrets of this vast genetic blueprint unique to each individual the possible applications from this knowledge are astounding. Here are just a few possibilities that could one day impact everyone’s oral health.
Preventing tooth decay. This rampant disease, triggered by bacteria (particularly Streptococcus mutans), can cause extensive damage in otherwise healthy teeth. There’s already some indications from the study of genomics that we may be able to stop or at least hinder this disease in its tracks. Already we’re seeing advances in gene therapy that might be able to inhibit the growth of Strep mutans and reduce its colonies in the mouth.
Growing new teeth. Composed of various layers, a natural tooth is part of a dynamic system of bone and gum ligaments that allow movement, protection and nourishment. Although dental implants are the closest and most advanced artificial approximation we now have to them, implants still can’t fully measure up to the function and capabilities of a natural tooth. But further insight into the genetic code may one day allow us to reproduce a living replacement tooth for a lost one.
Harnessing saliva for detecting disease. The impact of genomics related to the mouth could impact more than just the mouth itself. Researchers have discovered that saliva contains genetic information similar to blood, urine and other bodily fluids with markers for various disease conditions. Unlike other fluids, though, saliva is relatively easy to collect. The key is new equipment and testing protocols to take advantage of the information already available in a single drop of saliva.
These examples illustrate the range of possibilities for better health in the future: a reduction in dental disease early in life; new and better ways to restore missing teeth; and quicker ways to diagnose dangerous health conditions.
If you would like more information on new developments in dental care, 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 Future of Dentistry: A Sneak Preview of Your Dental Future.”
Home whitening kits are a popular way to turn a dull smile into a dazzling one. But these self-applied products only work for teeth with outer enamel stains — if the discoloration originates inside a tooth, you’ll need professional treatment.
Known as “intrinsic staining,” this type of discoloration most often occurs within a tooth’s pulp or dentin layers. There are a number of causes like tooth trauma or tetracycline use at an early age. A root canal treatment used to remove infection from deep within a tooth can also cause discoloration: sometimes blood pigments left after tissue removal or the filling materials themselves can stain a tooth’s interior.
Intrinsic staining can often be treated by placing a bleaching agent, usually sodium perborate, into the tooth’s pulp chamber. But before undertaking this procedure on a tooth that’s undergone a root canal treatment,Â we want to first ensure the filling is intact and still adequately sealing the tooth from infection. We also want to make sure the supporting bone is also healthy.
If all’s well, we access the pulp in the same way as the root canal treatment, and preferably through the same access hole. We then clean out the pulp chamber of any stained matter and then ensure the root canals remain filled and sealed off from the pulp chamber.
We can then place the bleaching agent into the pulp, a process that will need to be repeated every three or four days to achieve the desired level of brightness. After each session we place a cotton pellet over the opening and held in place with a temporary adhesive; we can easily remove and re-apply this covering during subsequent sessions. Once we’ve achieved the desired color change, we seal the tooth with a permanent filling and restore the access cavity with a tooth-colored composite resin material bonded to the enamel and dentin.
There are other options for an intrinsically stained tooth like veneers or crowns that outwardly cover the discoloration. Internal bleaching, however, is a more conservative approach that causes less alteration of the tooth. If successful, it can restore a stained tooth to a brighter, more attractive shade.
If you would like more information on internal bleaching, 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 “Whitening Traumatized Teeth.”
As tough as teeth are, life can take its toll on them and sometimes lead to parts of them chipping off. Although it might not affect a tooth's overall health, it can certainly downgrade its appearance.
But we can restore a chipped tooth like new, and it may not require extensive dental work. Thanks to a versatile dental material called composite resin, we can often bring back a tooth's natural appearance in just one visit.
Tooth-colored resins have been around for decades, but their application has been limited due to issues with durability. Recently developed bonding techniques, though, have made them a workable option for restoring mild to moderate tooth defects.
We do this by applying and bonding the composite resin to a tooth to “fill in” the missing portion. While it's often a short process, it does require a thorough understanding of tooth anatomy, function and aesthetics.
We begin with a comprehensive exam to assess the true condition of a chipped tooth. Some dental defects might be better served with a porcelain restoration like a veneer or crown for best results. Still, there are a wide range of defects for which composite resins is a solid repair choice.
Once we've determined bonding is appropriate, we prepare the tooth by first roughening its outer surface and then etching it with an acid solution to increase bonding strength. We then apply a luting agent, a kind of dental cement, also to aid with bonding.
We then begin applying the composite resin in liquid form, one layer at a time. This layering process helps simulate the color depth and shape of the tooth, and to further incorporate strength into the restoration. We're also careful at this point to match the variations of color with those of the surrounding teeth so that it looks as natural as possible.
As we finish each layer, we apply a curing light to harden the resin. We can then polish the finished product and make adjustments for the bite. The end result is a tooth that not only looks whole, but natural and blended with the rest of your teeth. Bonding could truly change your smile in just one visit.
If you would like more information on cosmetic dental 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 “Artistic Repair of Front Teeth With Composite Resin.”
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