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Understanding Cavities

May 27th, 2026

Getting a cavity seems like delayed punishment for eating that special dessert every weekend or for the few days you forgot to floss. When you are doing everything right with minimal exception and a cavity is diagnosed, it is discouraging. Knowing how cavities form and what causes them is valuable in knowing how to prevent them. In this blog post, Dr. Kelly Peterson will help you understand cavities!

A cavity is not a one-time event. It is actually a symptom of a disease called caries. Tooth decay is a result of an active infection and condition in the mouth. There are ingredients to this infection, which include bacteria, acid, your tooth, and a food source. The main bacterial culprit is S. Mutans. Bacteria live in a housing structure called biofilm. This offers them protection, food, and an ideal replicating environment.

Biofilm can be healthy if there is a balance of good bacteria. When you have caries, the numbers of “bad” bacteria increase and produce an environment where they thrive and therefore cause tooth decay. A main indicator of this is a pH measurement of your saliva.

Several factors can influence the biofilm pH. Foods and beverages all have different pH levels. The lower the number, the higher the acidity. Since acid promotes tooth decay, a beverage like soda will promote a cavity. Water, being neutral, is a good choice to promote healthy oral pH. Healthy eating can still cause cavities. Here is an example of a highly acidic, yet traditionally healthy meal:

Toast with store-bought strawberry jam, and a cup of cottage cheese topped with fresh cranberries.

Instead, here is a better choice, which involves mixing acidic healthy foods with alkaline (non-acidic) foods to reduce the overall pH:

Toast with almond butter, and Greek yogurt topped with fresh blueberries.

The first example will result in a very low pH in the mouth and even in the rest of the body. The second meal mixes highly acidic blueberries with an alkaline Greek yogurt. Dairy products from cows are highly acidic. Toast is acidic because of the yeast and almonds are alkaline.

A natural buffer is saliva. Whenever mouth breathing or medications compromise the saliva flow, the pH is going to drop and caries can go rampant. Getting a cavity is not just about the sweets or forgotten flossing sessions. It is about the pH levels and bacterial management.

For more helpful tips about how to avoid cavities, contact our Marysville, WA office.

Memorial Day

May 20th, 2026

Memorial Day is not only a federal holiday in the United States, but it is a day of observance and remembrance of those who died in service. Originally known as Decoration Day, this solemn day has been marked on calendars since the end of the American Civil War as a day to commemorate both the Confederate and Union soldiers who fought and died in the war.

Marking the graves of fallen soldiers with flowers, wreaths, or other tokens has been practiced throughout history, but it wasn't until the mark of the end of the Civil War that a special day was decided upon as the one to spend in remembrance. By 1890, every state in the country was observing Decoration Day. It wasn't until 1967 when the name formally changed from Decoration Day to Memorial Day, in order to encompass all fallen American soldiers in all wars and conflicts. In June of 1968, Congress moved the official date of Memorial Day to the last Monday in May in order to create a three day weekend.

Today, while there is certainly an air of remembrance on Memorial Day, it has become more a day of spending time with family, friends, and other loved ones. This day is also heralded as the start of summer, with many schools finishing for the year around this time. Our team at Northwest Smile Design remembers it as a day to take solace and remembered those lost.

Traditional observances of Memorial Day are still held, and they often involve raising the American Flag then lowering it to a half-staff position until noon, and then raising it once again to its full height afterwards. The flag is lowered to remember those who've lost their lives while in service to their country, and then it is raised to signify our willingness to not let their sacrifice be in vain.

From community parades in the Marysville, WA area, backyard cook-outs, and fireworks to formal ceremonies, Memorial Day is commemorated in many different ways. No matter how you choose to spend this day, take a moment to remember those who've lost their lives in an effort to preserve our freedom.

Aging and Oral Health

May 13th, 2026

As you age, it becomes even more important to take good care of your teeth and dental health. According to the Centers for Disease Control and Prevention, approximately one-fourth of adults age 65 and older have no remaining teeth. What's more, nearly one-third of older adults have untreated tooth decay.

Oral health, regardless of age, is crucial to overall good health. Ideally, we all want to keep your natural teeth, but whether you're caring for natural teeth or dentures, advancing age may put older adults at risk for a number of oral health problems, including:

  • Dry mouth
  • Diminished sense of taste
  • Root decay
  • Gum disease
  • Uneven jawbone caused by tooth loss
  • Denture-induced tissue inflammation
  • Overgrowth of fungus in the mouth
  • Attrition (loss of teeth structure by mechanical forces)
  • Oral cancer

These conditions may not be diagnosed until it is too late. If you want to feel good, stay healthy, and look great throughout life, you might be surprised what a difference a healthy mouth makes.

Here are some tips for maintaining and improving your oral health as you become older:

  • Brush twice a day with a toothbrush with soft bristles. You may also benefit from using an electric toothbrush.
  • Clean between your teeth once a day with floss or another interdental cleaner.
  • If you wear full or partial dentures, remember to clean them on a daily basis. Take your dentures out of your mouth for at least four hours every day. It’s best to remove them at night.
  • Drink tap water. Since most contains fluoride, it helps prevent tooth decay no matter how old you are.
  • Quit smoking. Besides putting you at greater risk for lung and other cancers, smoking increases problems with gum disease, tooth decay, and tooth loss.
  • Visit Northwest Smile Design regularly for a complete dental checkup.

If you have any questions about keeping up with your oral hygiene at home, please give us a call!

May Marks National Physical Fitness and Sports Month!

May 6th, 2026

The merry month of May also happens to be National Fitness and Sports Month, so take advantage of the warmer days to get outside and exercise! Bringing a friend, family member, or coworker with you when you go for a brisk walk during a lunch break can provide an opportunity to socialize as well as health benefits. If you need a little more motivation, here are some good reasons to stay active and fit.

Exercise provides:

  • Improved stamina and energy as well as toned muscles and bone strength and density
  • Improved circulation and breathing for a healthier heart and lungs
  • Reduced risk for Type 2 diabetes and certain forms of cancer
  • For older adults, regular exercise may help improve balance and reduce the risk of falls as well as improved cognitive abilities

Children and Teens

Children and teenagers spend long hours at their desks in school, on the computer, watching television, and involved in other sedentary activities that result in obesity and poor health later in life. Getting them engaged in school or community sports teams can help them form good life-long exercise habits. One important note: If they are participating in contact sports, Dr. Kelly Peterson and our team at Northwest Smile Design recommend your kids wear an approved mouthguard to protect those valuable teeth from injury! Ask us for a proper fitting of your safety appliance during your next visit!

A gym membership is nice but not necessary to stay fit; try these easy ways to work some exercise into your daily routine.

At Home

  • Take a friend along for company on a walk through your neighborhood.
  • Pursue gardening or other yard work, including mowing or raking.
  • Take your kids on a bike ride or have them push a baby stroller around the block.

Couch potatoes take note: simply moving from the sofa to the floor for some sit-ups, leg-lifts, or push-ups while you’re watching television can help you get in better shape in no time.

At Work

  • Take the stairs instead of the elevator.
  • Take exercise breaks for walks around the building or parking lot.
  • Walk or ride a bike to work.

So what are you waiting for? Get moving!

For more information on exercise techniques, or to schedule an appointment with Dr. Kelly Peterson, please give us a call at our convenient Marysville, WA office!

(360) 658-7750 5100 Grove St, Ste B
Marysville, WA 98270

Office Hours

Mon 8:00am-5:00pm
Tues 8:00am-5:00pm
Wed 8:00am-5:00pm
Thurs 8:00am-5:00pm
Fri Closed
American Dental Association American Academy Of Cosmetic Dentistry Washington State Dental Association
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