Our Blog

We know that the foods we eat and drink can have a definite impact on our smiles. Staining is an unhappy side effect of many of our menu favorites. That’s why we sip red wine through a straw, rinse with water after a slice of blueberry pie, and cut back on the coffee and tea after a single cup (or two—we’re not perfect!). And sugar is the fuel for cavity-causing bacteria, so we try to substitute water for soda, or replace the hot fudge sundae with grilled fruit. And we always brush carefully after indulging.

So far, so good. But while we’re saving our brilliant smiles from stains and decay, let’s not forget one other source of diet-related damage—acids. Acidic foods and beverages can actually erode the surface of our enamel, leaving our teeth more vulnerable to sensitivity and discoloration.

What Is Dental Erosion?

Enamel is the strongest substance in our bodies—stronger than bone—but it is not indestructible. And acids are one of the major causes of enamel damage. (In fact, it’s the acids produced by bacteria that lead to cavities.) Luckily, our bodies are designed to protect our enamel. Saliva helps clean the teeth by washing away food particles and it neutralizes acidity as well. But a diet that’s too heavy in acidic foods can undo all this good work and upset the healthy pH balance in our mouths.

Why is this a problem? Because acidic environments actually cause the minerals in our enamel to break down, a process known as “demineralization.” This weakening of the enamel leaves teeth more sensitive to heat and cold. It can even lead to discolored teeth, as thinner enamel allows the brownish-yellow dentin underneath the enamel surface to become visible.

Are You Aware of Acids?

We can immediately guess at some of the most acidic foods. Citrus fruits and juices, tomatoes in their many culinary forms, anything pickled in vinegar, coffee, tea, wine—these foods are certainly acidic, but also a regular part of many a healthy diet. You don’t need to avoid these foods altogether, but it’s best to enjoy them as part of a meal or enjoy them sparingly. And balance out some of these high-acidity foods at mealtime with low-acidity choices like bananas, bread, and dairy products.

Other sources of damaging acids might surprise you. Studies have linked sodas, energy drinks, and sports drinks to higher levels of tooth erosion. The combination of citric acid, phosphoric acid and/or carbonation raises acidity levels in the mouth. And because we tend to sip them all day long, it’s like a continuing acid bath for our enamel. Water is always a healthy alternative for hydration, but if you do indulge in a soda or sports drink, rinse with water after drinking. And don’t swish—just swallow.

Won’t Brushing Help?

Yes, but watch your timing. Because the acids in foods weaken enamel, brushing right after a big glass of orange juice or a soda can actually be even more abrasive for tooth surfaces. We recommend waiting anywhere from 20-60 minutes to brush. This gives your saliva the chance to not only wash away acids, but to “remineralize” your teeth, bathing them in the phosphate and calcium ions that strengthen enamel.

If you notice any of the symptoms of dental erosion, including pain, sensitivity when you eat or drink something hot, cold or sweet, or yellow discoloration, talk to Dr. Robert Odegard during your visit to our Renton office about what you can do to help protect and strengthen your teeth. Unfortunately, our bodies can’t produce new enamel. By avoiding foods that stain, by reducing sugars that lead to decay, and by limiting the acidic foods that erode our enamel, we give ourselves the best opportunity for a lifetime of beautiful, healthy smiles.

From the time you were small, you’ve been warned about the dangers of plaque. Why? Because:

• It’s an unappealing film that sticks to your teeth
• It causes cavities
• It causes gum disease

And really, do we need to know much more than this to motivate us to brush? But if you’re in a curious mood, you might be wondering just how this soft, fuzzy film accomplishes all that damage. Let’s take a closer look at the sticky problem of plaque.

How does plaque form?

We live with hundreds of species of oral bacteria, most of which are harmless, and some of which are actually beneficial. But when our oral ecosystem gets out of balance, problems can occur. For example, without regular and thorough brushing and flossing, we start to build up plaque.

Plaque starts forming within hours of your last brushing. And even though plaque fits the very definition of “seems to appear overnight,” this biofilm is actually a complex microbial community with several different stages of development.

• It starts with saliva.

Saliva is vital to our oral health, because it keeps us hydrated, washes away food particles, neutralizes acids in the mouth, and provides minerals which keep our enamel strong. Saliva also contains proteins, which help form a healthy, protective film on the tooth surface. This film is called a pellicle.

• Bacteria attach to the pellicle.

There are species of oral bacteria that are able to attach themselves to the pellicle film within hours of its formation. As they become more firmly attached, they begin to grow and divide to form colonies, and are known as the early colonizers of the plaque biofilm.

• A complex biofilm forms.

If you’ve skipped brushing for a few days (please don’t!), you’ll notice a fuzzy, sometimes discolored film on your enamel—that’s a thriving plaque community, and it only takes a matter of days to go from invisible to unpleasant.

If you’re not removing plaque regularly, it can harden further and become tartar. And once you have tartar buildup, you’ll need the care of a dental professional to remove it.

• What happens if we ignore plaque and tartar?

We get cavities and gum disease.

How does plaque cause cavities?

• The bacteria in plaque, like all organisms, need nutrients.

Our normal oral environment and the food in our everyday diets provide the nutrients plaque needs. And, as we mentioned above, certain types of oral bacteria convert these nutrients into acids. Foods such as carbohydrates, starches, and sugars are most easily converted into acids, which is why we recommend that you enjoy them in moderation.

• The biofilm promotes acid production.

Within the plaque film, anaerobic bacteria (bacteria which don’t use oxygen) convert sugars and starches into acids. As the plaque film becomes denser, it blocks acid-neutralizing saliva and oxygen from reaching these bacteria close to the tooth’s surface, creating an ideal environment for the bacteria to produce their acid waste products.

• Acids attack enamel.

The sticky nature of plaque keeps these acids in contact with tooth enamel, where, over time, acids dissolve minerals in enamel, weakening the mineral structure of the tooth.

How does plaque cause gum disease?

• Bacteria cause inflammation and gingivitis.

The bacteria in plaque irritate the delicate tissue of the gums, which causes an inflammation response which can leave your gums swollen, red, bleeding, or tender. This early form of gum disease is gingivitis. Fortunately, good dental care and careful brushing and flossing can usually prevent and even eliminate gingivitis.

• Plaque and tartar can lead to periodontitis.

When plaque and tartar build up around and below the gumline, the gums pull away from the teeth, leaving pockets where bacteria collect, leading to infection as well as inflammation. Infections and constant inflammation not only harm gum tissue, they can destroy the bone supporting the teeth. This serious gum condition is periodontitis, and should be treated immediately to avoid further infection and even tooth loss.

How do we fight plaque?

From the time you were small, you’ve learned how to fight plaque:

• Brush at least twice a day for two minutes, and be sure to brush all of your tooth surfaces and around the gumline.
• Floss to remove plaque from between the teeth and near the gumline.
• Visit our Renton office for a thorough professional cleaning.

Be proactive. If you have any questions, talk to Dr. Robert Odegard about the best way to keep plaque at bay. We can show you the most effective ways to brush and floss, recommend anti-plaque toothpastes and rinses, even suggest plaque-revealing tablets if you’re missing some trouble spots.

We’ve only brushed up on some plaque basics, because there is a lot more to discover about this complex biofilm. Happily, even with all there is to learn about plaque’s growth and development, it’s reassuring to know that getting rid of it is quite simple—with just a soft-bristled brush, some dental floss, and a few minutes of your time each day, you’re on the way to a healthy, happy, plaque-free smile.

At Robert L. Odegard DDS, we know most of our patients enjoy a cup of coffee or two throughout the day. But what many of you don’t know is that coffee can be especially tough on your teeth because tannic acid (the substance that makes the dark color) etches into the pits and grooves of tooth enamel, staining your pearly whites and being generally detrimental to your smile.

Coffee is one of the most popular beverages in the world, with more than 50 percent of people drinking a cup daily. Other foods and drinks such as wine, chocolate-flavored beverages, and soft drinks can all cause tooth enamel discolorations. A hot cup of Joe, however, goes one step farther: extreme temperature changes in your mouth can cause teeth to expand and contract. This allows stains to penetrate deep into the micro-cracks of your tooth enamel.

Additionally, caffeine is considered a diuretic, which means it causes the body to lose fluids. So when you enjoy coffee or any kind of caffeinated beverage, it slows the production of saliva and causes dry mouth, which can potentially lead to bad breath and even tooth decay.

If you just can't make it through the day without a cup of java, we encourage you to consider these tips to help make sure your teeth stay in tip-top shape:

• Drink a glass of water with your coffee or rinse with a glass of water after every cup. Not only does it help neutralize and rinse away the acid left behind from the coffee, but it also helps replenish fluids drawn out of your body by caffeine.
• Chew gum after you drink coffee. Chewing gum will help keep your saliva production up and prevent dry mouth.
• Enjoy your beverage with a straw so that tannins don’t make contact with your front upper and lower teeth.
• Switch to decaf. Each cup of regular coffee you drink has an average of 110 milligrams of caffeine. Decaf has the same great taste with only two to 12 milligrams of caffeine.

Dr. Robert Odegard and our team also invite you to visit our convenient Renton office for whitening options. We can help bleach your teeth with proven and professional products. To learn more about whitening options available at Robert L. Odegard DDS, please give us a call!

Two studies – one conducted in Washington State, and whose findings were published in the Journal of Pediatric Dentistry in 2004, and another conducted in Madrid, Spain, and whose findings were reported in 2012 in Science Daily, reinforce earlier findings that show a direct relationship between parental dental fear and that of their children.

The Washington study looked at dental fear among 421 children whose ages ranged from 0.8 to 12.8 years. The children were all patients at 21 different private pediatric dental practices in Western Washington State. The Spanish study looked at 183 children between the ages of seven and 12, and their parents in Madrid.

The Washington study used the Dental Sub-scale of the Child Fear Survey Schedule. The survey responses came from either parents, or other parties charged with taking care of the children. The people responsible for each child filled out the survey, which consisted of 15 questions to which answers were given based on the child’s level of fear. The scale used was one to five, with one meaning the child wasn’t afraid at all, and five indicating the child was terrified. The maximum possible points (based on the greatest fear) was 75.

Spanish researchers found that like past studies, there is a direct connection between parental dental fear levels and those of their kids. The most important new discovery from the study conducted in Madrid, was that the more anxiety and fear a father has of going to the dentist, the higher the fear levels among the other family members.

Parents, but especially fathers, who suffer from fear of going to the dentist and fear of dental procedures in general pass those fears on to every member of the family. While parents may not feel like they have control over those fears, the best way to help your child understand the importance of going to the dentist is by not expressing your fears in front of them – or around the rest of the family.

Dr. Robert Odegard and our team understand that some patients are more fearful than others when it comes to visitingour Renton office. We work hard to make our practice as comfortable for our patients, both children and adults.