1. Xylitol is a kind of sugar.
   True or False
2. Xylitol is made from
   1. Bark of birch trees
   2. Coconut shells
   3. Cottonseed hulls
   4. All of the above
3. Xylitol is a natural “sugar alcohol” similar to other so-called sugar alcohols such as mannitol and sorbitol.
   True or False
4. Xylitol is broken down by decay-causing bacteria to produce acid.
   True or False
5. Decay-causing bacteria are transmitted from a parent to a child through oral contact such as a simple lip-to-lip goodnight kiss.
   True or False
6. Researchers have found no difference in prevention of tooth decay in gum made from xylitol compared to gums containing sorbitol/xylitol and sucrose.
   True or False
7. Other xylitol products such as mints, candy and cookies also seem to decrease the incidence of tooth decay.
   True or False
8. Xylitol products increase salivary flow and allow saliva to neutralize acids in your mouth.
   True or False
9. The only side effect of too much xylitol ingestion is a possible mild laxative effect.
   True or False
10. The target dose of xylitol is one to two teaspoons spread throughout the day.
    True or False

1. True. Xylitol is a kind of sugar that does not contribute to tooth decay.
2. All of the above. It is also found naturally in some fruits and vegetables.
3. True. The others, mannitol and sorbitol, are used as sugarless sweeteners.
4. False. Unlike sucrose (table sugar), xylitol is NOT broken down by bacteria to produce acid. Xylitol also stops saliva from becoming acidic so your mouth becomes an unfriendly environment to acid-producing bacteria.
5. True. However, xylitol inhibits growth and attachment of the bacteria to your teeth, so it also inhibits transmission to your children.
6. False. Systematic use of xylitol chewing gum significantly reduces the relative risk of caries (tooth decay) when compared to chewing gums containing sorbitol/xylitol and sucrose. Xylitol gum also appears to halt the development of tiny cavities when compared to other types of chewing gum.
7. True. Use of these products seems to stop the progression of active decay.
8. True. Xylitol and your saliva combine to re-mineralize (harden) your teeth after an acid attack.
9. True.
10. True. This means two pieces of xylitol gum or two pieces of xylitol candy or mints should be consumed for five minutes four times a day after eating meals or snacks.

Contact us today to schedule an appointment to discuss your questions about xylitol and other methods of preventing tooth decay. You can also learn more by reading the Dear Doctor magazine article “Xylitol in Chewing Gum.”

CAMBRA — Caries Management By Risk Assessment

Worried about tooth decay? Dental Decay is one of the most common and infectious diseases known to man, but it is also very preventable. Today, it is even possible to determine your risk for getting tooth decay. There are disease indicators and risk indicators that can be assessed and used to determine your chances of getting tooth decay. And more importantly, they can be used to prevent and reverse early decay.

Essentially, the difference between healthy teeth and tooth decay is a matter of balance and keeping the balance tipped toward health. That means controlling the factors that tip it toward health and away from disease. Here's a little about how it works:

Disease indicators, as the name implies, are indicators of disease. For example, the presence of white spots on the enamel of your teeth, early signs of decay, which can be detected by your dentist, your past experience of cavities, and whether you currently have tooth decay.

Today, with a “simple saliva sample,” we can test the bacteria in your mouth to determine your decay risk with a simple meter reading.

There are also certain risk factors for tooth decay that you can change by modifying what you do. The ways in which you can help yourself include:

• Reduce the amount of bacterial plaque (biofilm) build-up on your teeth. If plaque is actually visible on your teeth with the naked eye, it means there is a large amount that needs to be removed professionally. High levels of bacteria leave teeth more susceptible to attack from acid-producing bacteria that cause decay.
• Stop snacking on foods containing sugar between meals. Reducing the number of times your teeth are exposed to sugary snacks, and those that contain high amounts of refined carbohydrates, will help lower your risk of tooth decay. Stop feeding the bacteria sugar, which is turned into acid.
• Use fluoride toothpaste. This toothpaste will help strengthen your teeth, making them more resistant to acid attack. Deep grooves in the biting surfaces of your teeth, which we call pits and fissures, increase the likelihood of tooth decay making it impossible to reach with just a toothbrush. However, sealing these areas with “sealants” will prevent these areas from decaying.
• Always ask your doctors about the potential side effects of all medications. Certain drugs reduce the production of saliva and lead to dry mouth, which is one of the main contributors to tooth decay. Saliva has important buffering properties, neutralizing acids in the mouth, helping to reduce risk of decay.
• If you have an eating disorder, get professional help. People suffering from both bulimia and anorexia frequently vomit after meals, which creates a highly acidic condition in the mouth. Getting control over these conditions can help you also gain control over your risk for tooth decay.

We can further help assess your risk for tooth decay by using low dosage x-rays, microscopes, innovative laser technology, and other modern means. Call our office today to schedule a screening. To learn more about the diagnosis and prognosis of tooth decay, read the exclusive Dear Doctor magazine article “Tooth Decay: How To Assess Your Risk.”