Posts for: February, 2018
For years preparing teeth for fillings or other restorations has required the use of a drill. Although quite effective in removing decayed structure and preparing the tooth for bonding, it usually requires a local anesthetic. That and the noise it generates can be unsettling for many patients.
In recent years, a different type of technique known as “air abrasion” has increased in popularity among dentists. Known also as “particle abrasion,” the technique uses a stream of fine particles to remove decayed tooth structure and is less invasive than the traditional drill. Although the technology has been around since the mid-20th Century, recent developments in suction pumps that remove much of the dust created have made it more practical. It also works well with new natural-looking bonding materials used for tooth structure replacement.
The fine particles — usually an abrasive substance like aluminum oxide — are rapidly discharged through a hand-held instrument using pressurized air aimed at affected tooth areas. Decayed teeth structure is softer than healthier tissue, which allows air abrasion to precisely remove decay while not damaging the other.
Besides removing decay or abrading the tooth for bonding, air abrasion can also be used to minimize stained areas on surface enamel and to clean blood, saliva or temporary cements from tooth surfaces during dental procedures. It’s also useful for smoothing out small defects in enamel or aiding in sealant applications.
It does, however, have a few limitations. It’s not as efficient as the traditional drill with larger cavities or for re-treating sites with metal (amalgam) fillings. Because of the fine texture of the abrasive particles, affected teeth need to be isolated within the mouth using a rubber dam or a silicone sheet. High-volume suction must be continually applied to capture the fine particles before the patient swallows them or it fills the procedure room with a fine cloud of material.
Still, while air abrasion technology is relatively new, it has clear advantages over the traditional drill in many procedures. As advances in the technology continue, air abrasion promises to offer a more comfortable and less invasive experience in dental treatment.
Having a chipped tooth certainly can make life more difficult. It not only keeps you from wanting to smile, but it may also make it harder to eat your favorite foods. And that can be a major problem — especially if you need to eat up to 80 pounds of bamboo every day to stay healthy.
Just ask Bai Yun, the female giant panda at the San Diego Zoo. The 23-year-old animal recently chipped one of her lower canines, and her keepers were concerned that it might impair her ability to get good nutrition (pandas spend as many as 12 hours a day munching on the woody plants). So they decided it was time for a little dental work!
What followed was not unlike a regular visit to the dental office… except that, instead of sitting in a chair, the 227-pound panda reclined on a large table. After being anesthetized, the patient’s teeth were examined, and x-rays were taken. A composite resin was applied to the damaged tooth, and it was cured with a special light. After the repair work was done, her teeth were given a professional cleaning. When the anesthesia wore off, Bai Yun was released in good health — and ready to eat more bamboo.
Tooth bonding with composite resin is the restoration of choice in many situations. This method can be used to repair small chips or cracks in the teeth, and to clear up some spacing irregularities. The resin itself is a mixture of tough, translucent plastic and glass components that can be made in a number of different shades, which look remarkably like the tooth’s natural enamel coating. And the bonding material links up so well with the tooth structure that this treatment can be expected to last for years.
Another benefit of bonding is that it can be done right in the office — there’s no lab work involved (as there could be for veneers or crowns, for example). That makes it a relatively simple and economical treatment that can typically be completed in a single visit. It’s ideal for fixing minor flaws that don’t involve a great deal of tooth structure. It’s also a cost-effective solution for teenagers who need cosmetic dental work, but must wait until they have stopped growing to get more permanent restorations.
While it isn’t usually as long-lasting as restorations like crowns and veneers, cosmetic bonding is a minimally invasive, reversible treatment that can keep your smile healthy and bright for years to come. And that’s important — whether or not you spend most of your day eating bamboo and posing for snapshots at the zoo.
If you have questions about whether cosmetic bonding could help your smile look its best, please contact us or schedule an appointment for a consultation. You can learn more by reading the Dear Doctor magazine articles “Repairing Chipped Teeth” and “Artistic Repair Of Front Teeth With Composite Resin.”
Confused about which toothpaste to buy? You’re not alone — we’re all regularly confronted with multiple choices when we shop.
But you can simplify your decision-making process by first remembering that toothpaste has one main objective: helping to break down and remove dental plaque when you brush. Plaque is a thin film of bacteria and food particles that if you don’t remove through brushing and flossing could trigger tooth decay or periodontal (gum) disease.
Toothpastes contain abrasives and detergents to help make this possible. Abrasives like hydrated silica are gritty substances that work with the mechanical brushing action to loosen plaque. Detergents (usually sodium lauryl sulfate) help loosen and break down particles on your teeth that won’t otherwise dissolve with water alone. The combination of these ingredients and daily brushing action enables you to remove a substantial portion of plaque from your teeth every day.
These ingredients (along with others to retain moisture and bind everything together) are the foundation of any toothpaste. There are other additives, however, that you may also want to consider. The most important is fluoride, a naturally-occurring chemical proven to strengthen enamel against tooth decay. If you’re interested in a brighter smile, you can also look for bleaching agents that may help whiten some enamel staining. And, of course, there are various flavors to suit your taste.
You’ll also want to pay attention to ingredients if you have special concerns. If you have sensitive teeth, your dentist may recommend particular brands that help reduce discomfort. You’ll also want to be on the lookout for ingredients that you may be allergic to like the aforementioned sodium lauryl sulfate or flavors like cinnamon. Be sure to read the ingredients label if you have known issues with certain substances.
And while you’re reading the packaging look for one more thing — the American Dental Association Seal of Approval. This seal means any manufacturer claims for lower occurrences of cavities or other effects by that toothpaste have been independently verified.
It can be overwhelming amid all the product messaging to decide which toothpaste is right for you. But by knowing these basic facts about toothpaste, you can feel more confident choosing the right one to help keep your teeth and gums clean and healthy.
If you would like more information on oral hygiene products, 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 “Toothpaste: What’s in it?”