When it comes to sports, all athletes need to know how to assess their risk for experiencing a sports-related injury as well as how to prevent one. The first step to accomplish this is learning how sports and activities are classified, as they define risks from little-to-no chance of injury to highly susceptible for injuries. These categories include:

• Low velocity, non-contact sports: These sports and activities have the lowest risk, as they typically include sports where the athletes perform individually at reasonable speed without physical contact. Examples include: golf, Nordic skiing, weight lifting, running and swimming.
• High velocity, non-contact sports: These sports and activities are those where athletes move at high rates of speed but with no contact with other participants. While there is no contact, anytime you are moving at high rates of speed, accidents can happen. Examples include: bicycling, motocross, skateboarding, skiing and snowboarding.
• Contact sports: As the title states, these sports and activities include frequent body-to-body contact or body to equipment (e.g., a ball, glove, etc.) contact. Examples include: basketball, soccer, lacrosse, baseball and softball.
• Collision sports: With these sports and activities, strong, forceful, body-to-body or body-to-equipment contact is a primary goal of the sport. Examples include football, ice hockey, rugby, and boxing. Without the proper protective head and mouth gear, participants are highly likely to experience an oral-facial and/or head injury.

The good news is that you can dramatically reduce the odds of serious dental and oral-facial injury by ensuring that you wear a professionally made mouthguard in addition to a helmet, facemask, or other protective gear that is appropriate to the sport. This is especially true if you participate in the high velocity, contact and collision categories. These simple steps can help reduce worries for not only players, but also for parents, caregivers and coaches. For more information, read, “An Introduction To Sports Injuries & Dentistry.” You can also download a FREE, pocket-sized guide for managing dental injuries.

We tend to think of aspirin as a harmless medication. It is dispensed over the counter and is the most widely used OTC medication in the U.S. We take it without thinking we may be exposing ourselves to risks. But in certain situations aspirin can cause dangerous side effects.

What is aspirin, and how does it work?
The chemical name for aspirin is acetylsalicylic acid. It is used to reduce mild pain, inflammation and fever. When you take an aspirin, it blocks the formation of prostaglandins, substances your body creates that are associated with inflammation. Prostaglandins cause inflamed tissues to become red and swollen, but they also serve protective purposes, such as forming a barrier that protects the stomach from the acid it produces to digest your food. That's why long-term aspirin use can sometimes cause stomach bleeding and ulceration or other health problems.

Why do cardiac patients take aspirin?
Another effect of aspirin is to prevent blood platelets from clumping together. Blood platelets are structures in the blood, smaller than white or red blood cells, that aid clotting by sticking together at the site of an injury. This effect of aspirin can cause prolonged bleeding, but it may be beneficial to people who have cardiovascular (from cardio, meaning heart; and vascular, meaning vessel) disease with narrowed blood vessels.

Aspirin can keep blood flowing in the obstructed vessels and thus prevent heart attacks and strokes; but it can also increase the risk for strokes that are caused by bleeding in the brain. Most physicians attempt to lower such risks by asking their patients to keep their daily aspirin consumption to a low dose 81 mg “baby” aspirin.

How does aspirin affect your teeth and gums?
Be sure to let your medical and dental professionals know you are taking aspirin, and how much you take. Also tell us about other OTC medications you take, including herbal medications and supplements, because they may interact with aspirin to cause side effects.

If you have been told to take aspirin because of a cardiac condition or procedure, be sure to follow your recommended treatment. Do not suddenly discontinue aspirin therapy; doing so can increase your risk for heart attack and stroke. Ask us if you should stop taking aspirin before a major dental or oral surgery, but do not stop taking it on your own. We will consult with your physician about your medical condition and let you know our recommendation. In most cases you can continue your aspirin therapy without causing excessive bleeding during the dental procedure.

Contact us today to schedule an appointment. You can also learn more by reading the Dear Doctor magazine article “Aspirin: Friend or Foe?”

Guidelines regarding the concentration of fluoride in water have recently been changed by the US Government's Department of Health and Human Services (HHS) and the Environmental Protection Agency (EPA). These agencies recommended a reduction of fluoride in water supplies to 0.7mg/L, modifying the original recommendations provided in 1962 by the US Public Health Service.

What is fluoride, and why add it to water supplies?
Fluoride is a chemical form of fluorine, a naturally occurring element. For decades, scientists have carried out studies on the effects of fluoride in water, and they have proved that fluoride strengthens tooth surfaces and makes them resistant to decay. A fluoride concentration of about one milligram per liter (1 mg/L), or 1 part per million (1ppm), in the water supply is associated with substantially fewer cavities. This concentration of fluoride (equivalent to a grain of salt in a gallon of water) has been found to have no negative health effects.

The Center for Disease Control (CDC) says that fluoridated water is one of the ten most effective public health measures of the 20th Century. The optimal amount of fluoride necessary to make teeth resistant to decay turns out to be between 0.7 and 1.20 milligrams per liter (mg/L). A certain amount of fluoride occurs naturally in water supplies, and communities have added fluoride to bring the amount up to the optimal recommendations.

How does fluoride you drink get into your teeth?
The fluoride you drink in your water is deposited in your bones. Bone is an active living substance that is constantly broken down and rebuilt as a normal body process. As this happens the fluoride is released into the blood, from which it can enter the saliva and act on the tooth surface.

What about fluoride from other sources?
Americans now have access to many sources of fluoride in addition to the water they drink. These include foods, beverages and toothpaste. As a result, dentists have begun to notice an increased prevalence of a condition known as Dental Fluorosis.

What is Dental Fluorosis?
Dental Fluorosis can occur when teeth, particularly in children, receive too much fluoride. This condition is a mottling or uneven staining of the tooth surface enamel. There may be small white spots or extensive brownish discolorations. The mottled enamel is still resistant to decay, but it may be unattractive in appearance.

What is the idea behind the new guidelines?
With the new guidelines, fluoride is kept at the lower end of the scale of the optimal concentration for strengthening teeth against decay. At this end, there is room to add consumption of fluoride from other sources such as foods or toothpaste. In short, it is the best of both worlds.

Contact us today to schedule an appointment to discuss your questions about fluoride. You can learn more by reading the Dear Doctor magazine articles “Fluoride & Fluoridation in Dentistry” and “New Fluoride Recommendations.”

If an adult has lost his or her teeth (a condition called “edentulism”), full removable dentures (false teeth) can restore the person's appearance and ability to bite, chew, and talk properly. Even with our current extensive knowledge about tooth care and restoration, over 25 percent of Americans have lost all their teeth by the time they are 65.

How much do you know about dentures? Test yourself below.

How does tooth loss affect your bones?
Bone is a living substance that is constantly changing and rebuilding itself, depending on signals it receives from surrounding tissues. The bone that surrounds your teeth is called alveolar bone (from “alveolus,” meaning sac-like). To keep healthy, alveolar bone needs stimulation or function such as chewing and your teeth touching your opposing teeth. If you lose your teeth, bone begins to melt away (resorb).

How can we minimize bone loss during tooth extraction?
We can maintain bone volume by using bone grafting techniques. While this sounds scary, it is a relatively easy procedure. The principle of bone grafting is to build a sort of scaffolding on which your body begins to build and maintain its own bone. Bone loss can be prevented by the placement of a few dental implants.

How are dentures designed and created?
The dentures that look best and work best for you are based on your original teeth. We often utilize photographs of how you looked with your natural teeth, along with your input about possible changes you would like to see. First we take detailed impressions (molds) of the residual ridges in which your teeth once rested. From these we make denture bases of a light cured plastic resin. We attach horseshoe-shaped rims made of wax to the bases, to simulate the position of the teeth as we work out their design and spacing, based on both appearance and function. The prosthetic teeth are then tried out in your mouth, adjustments are made, and the dentures are processed in a dental laboratory. The final product substitutes a pink colored plastic (methyl methacrylate) to represent the gums and white plastic material as the teeth, created to make them look as natural as possible.

What is your part in the denture fitting process?
As a patient with new dentures, you must learn to use your jaw joints, ligaments, nerves, and muscles in new ways to help stabilize your dentures and to relearn to speak, bite, chew, smile, and laugh with these new structures. It takes a little practice, but with your removable dentures you can once again enjoy a complete and normal life.

Contact us today to schedule an appointment to discuss your questions about full removable dentures. You can also learn more by reading the Dear Doctor magazine article “Removable Full Dentures.”

You may have noticed, as you get older, that the enamel of your teeth is looking worn in certain areas. Sometimes tooth wear takes the form of a minor chipping or fracturing at the incisal (cutting) edges of the teeth, or a loss of tooth material from the area near the gum line. In more severe cases, worn teeth look quite a bit smaller than they used to. Why does this happen?

Some wear with age is natural. But too much wear can interfere with your bite, expose more sensitive inner parts of the tooth to decay, and give you a more aged appearance.

There are things you can control that affect wear:

Your habits: Clenching or grinding habits, also called “bruxism,” is a major cause of tooth wear. The motion of teeth sliding over each other with forces that are beyond what's normal for biting or chewing causes a mechanical removal of tooth enamel. This can happen during sleep or periods of high stress. In either case there are therapies available, such as a thin, professionally made mouthguard that prevents your teeth from coming into contact with each other. Holding foreign objects, such as nails and bobby pins, between your teeth can also cause wear.

Your diet: Tooth enamel can be eroded (dissolved away) by acidic beverages, such as sodas, sports drinks and juices. Frequent snacking on sugary foods encourages the growth of oral bacteria that produce acid as a byproduct — also leaving your teeth vulnerable to tooth decay. Your saliva can buffer the effects of the acid in your mouth in about half an hour; if you consume these types of foods and beverages continually, there won't be enough time for this to work.

We can restore the appearance and function of worn teeth in a variety of ways. Porcelain crowns and veneers, for example, can re-establish the normal thickness and length of teeth while improving their color and giving you a more youthful appearance.

If you have any questions about tooth wear, please contact us today to schedule an appointment for a consultation. You can learn more about tooth wear by reading the Dear Doctor magazine article “How And Why Teeth Wear.”