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The Science of Sugar

October 17th, 2025

Some languages have many different words for love. Some have many different words for snow. One language even has different words for a tasty layered sandwich. Is that a hoagie or a hero you’re having? A sub? Grinder? Po’boy?

“Sugar,” though, is a single word which has taken on many meanings, from casual endearment to monosaccharide molecule. Today, we’re examining scientific definitions, with a short and sweet look at the science of sugar.

Chemistry

First, let’s get basic—all the way down to the molecular level.

Carbohydrates, fats, and proteins are the three essential macronutrients which keep our bodies running. Sugars are molecules made of carbon, hydrogen, and oxygen atoms, and all carbohydrates are made of these sugar molecules, from single unit structures to very complicated chains.

Sugars called monosaccharides are the most basic of the carbohydrates. “Monosaccharide” comes from the Greek words for “single” and “sugar,” and monosaccharides are the sugars we mean when we talk about “simple sugars.” Why are they simple? Because a monosaccharide is a single molecule which can’t be broken down into smaller carbohydrates.

While there are several types of monosaccharides, the three major simple sugars are:

  • Fructose—the sugar we get from fruit.
  • Galactose—the sugar found in milk.
  • Glucose—the sugar our bodies use the most. It’s found in plants, and also produced when our bodies break down other carbs. Fun fact—this is the only sugar essential for brain cell function.

When two monosaccharide molecules join together, they form a disaccharide (not surprisingly, from the Greek for “two sugars”). Again, there are quite a few disaccharides, but we tend to concentrate on three in our diets:

  • Lactose (glucose + galactose)—found only in milk and dairy products.
  • Maltose (glucose + glucose)—the sugar chiefly produced by grains.
  • Sucrose (glucose + fructose)—produced in plants. These plants include sugar cane and sugar beets, from which we get our refined table sugars.

The reason sugar molecules are so important is because of how our bodies use them.

Biology

Our bodies use the glucose in carbs for energy. As foods break down, first through digestion and then in the cells, the chemical bonds which hold glucose molecules together break as well. This action releases energy, and this energy fuels all our bodily functions.

But even though we need carbohydrates to keep our bodies going, and even though sugars are the easiest carbs to use for energy, there’s a reason no one recommends a diet filled with extra sugar.

Our bodies get all the sugar they need from the natural sugar in the foods we eat. Natural sugars are found in fruits, dairy products, even some vegetables and grains. Along with that sugar come vitamins, minerals, antioxidants, fiber, and/or protein.

Extra sugars added during baking or mixing or processing for flavor and sweetness provide none of these nutrients. These sugars are known as “added sugars,” and have more serious consequences than just empty calories.

Once we have the sugars we require, there’s no need for more. Extra sugars are stored in liver, muscle, and fat cells for later use. When we eat too much sugar, this carefully balanced system is upset, with negative effects for, among other things, weight, blood sugar, insulin levels—and our dental health.

Nutrition and Dental Health

You know that a sugar-filled diet often means a cavity-filled checkup. Why? Because it’s not just our bodies that break down sugar for fuel.

The oral bacteria in plaque also need sugars for food, which they use to make acids. An acidic environment in the mouth weakens and dissolves the minerals which keep tooth enamel strong. And these weak spots are vulnerable to decay. A steady diet of sugar-filled foods means that your enamel is constantly under acid attack.

Cutting down on added sugars is one of the easiest and best ways to cut down on added cavities. Reading recipes, checking out labels, learning to recognize added sugars—this is nutritional research which has sweet results.

How to recognize added sugars? Here’s where language gives us plenty of words to fill our linguistic sugar bowl. Whether the ingredients are called agave nectar, honey, molasses, syrups, treacle, or table sugar, they’re really just sugar. More specifically, they’re all sugars made up of glucose and fructose, with at best a trace amount of vitamins and minerals—and usually not even a trace!

To make our lives easier, labels on food packaging now let us know exactly how much of the sugar in any product is “added sugar.” You expect to find a high percentage of sugar on dessert labels, but you might be surprised to read how much sugar is added to foods like energy drinks, sports drinks, flavored yogurts, cereals, spaghetti sauce, and many more of the items in your grocery cart. Spend an extra minute examining the label, and save yourself many empty calories.

Monosaccharides, disaccharides, glucose, fructose, maltose, agave syrup, treacle, and on and on—so many words for so many kinds of sugar. When it comes to dental health, let Drs. Coombs, Holmes, and Johnson have the last word on sugar science. During your next visit to our Spokane, WA office, talk to us about reducing unnecessary sugars in your diet for a future filled with the sweetest of healthy smiles.

October is National Dental Hygiene Month: A simple oral health routine for your busy lifestyle

October 16th, 2025

Adults are no strangers to feeling like there is never enough time in the day to get everything done. Your alarm clock rings and within minutes you ping pong around trying to spread peanut butter on sandwiches, answer your cell phone, remove the dog hair from your clothes, and make sure your child has completed his or her science fair project. Brushing your teeth can easily fall to the wayside. That is why our office promotes a simple, daily oral health regimen that you can easily incorporate into your busy lifestyle.

The American Dental Hygienists' Association (ADHA), in partnership with the Wrigley Jr. Company, is celebrating National Dental Hygiene Month (NDHM) during October. The ADHA encourages people to "Brush. Floss. Rinse. Chew...Keep it Clean, Keep it Healthy!" and offers some great tips for a quick and effective home oral health routine, below:

Oral Health Routine at Home

  • Brushing your teeth twice daily is the most important thing you can do to diminish the accumulation of plaque and the potential for other oral problems such as cavities and gingivitis.
  • Flossing once daily removes plaque and food from beneath the gums and between teeth that brushing alone cannot remove. Tooth decay and gum disease often begin in these areas.
  • Rinsing your mouth with an antibacterial, non-alcohol based mouthwash kills plaque and gingivitis germs that brushing and flossing do not catch. We recommend using a mouthwash with the ADA Seal of Acceptance.
  • Chewing sugar-free gum helps produce saliva, which battles cavities. The gum also neutralizes plaque, strengthens enamel, and removes remaining food. It is especially important to chew gum after eating or drinking.

It's easy to put the toothbrush down in order to take care of matters you feel are more urgent, but remember, a good oral health routine at home is the best way to prevent periodontal disease. "Periodontal disease is the most common cause of tooth loss in adults. An estimated 75 percent of Americans reportedly have some form of periodontal disease," said the ADHA. Periodontal disease also is linked to more serious illnesses such as diabetes and stroke.

Also, remember to keep regular visits with our office. Drs. Coombs, Holmes, and Johnson can help you learn more about proper care for your teeth and gums.

Sleep Apnea and Snoring

September 30th, 2025

Snoring may not be something you take seriously. You might even laugh or joke about it. But the fact is, anytime you or your partner snore to the point of waking, it could be a sign of serious health problems.

Sleep Apnea and Its Effects

Sleep apnea is a sleep disorder that is potentially dangerous, and the most common symptom is loud snoring. Breathing repeatedly starts and stops throughout the night, and you wake up feeling tired. Other serious effects from sleep apnea could be potentially dangerous to your health if left unaddressed.

Besides losing a good night's sleep, you may experience difficulty concentrating. Depression, risk of heart attack, irritability, high blood pressure, memory loss, sexual dysfunction, and chances of stroke all increase when sleep apnea is not treated.

Sleep apnea occurs when the muscles in the back of the throat relax to the point of inhibiting natural breathing. The muscles used to support the soft palate relax and the airway closes, causing breathing to stop for ten to 20 seconds. This lowers the oxygen level in the brain. As the brain senses the inhibited oxygen levels it rouses the sleeper awake so the airway can reopen. Normally, the reawakening is so brief the person won't remember it.

If you think you may have sleep apnea, visit our Spokane, WA office and let Drs. Coombs, Holmes, and Johnson determine what treatment is needed. Without it, you could risk losing more than a restful night's sleep.

Prevention and Treatment

Anyone can develop sleep apnea, but it is more common among middle-aged adults who are overweight. Drs. Coombs, Holmes, and Johnson can help you determine the cause and suggest positive treatment.

A common treatment for apnea is the placement of oral devices that are designed to help keep the airway open. By bringing the jaw forward, the device opens the airway and thereby discourages snoring. We are experienced in sleep apnea appliances, and Drs. Coombs, Holmes, and Johnson can prescribe a fitted device and monitor its success with follow-up therapy.

A continuous positive airway pressure mask, known as a CPAP, is among the other treatment options. A mask is fitted over the mouth and forces oxygen through the throat while you sleep. The pressure holds the soft tissue and throat muscles open.

Our professionals at South Hill Pediatric Dentistry can advise you of other ways to prevent sleep apnea, including weight loss, avoiding alcohol, or alternative sleeping positions. We can help you sleep return to easy sleep, knowing you are safer and healthier during your resting hours.

Energy Drinks and Dental Health

September 23rd, 2025

Are energy drinks bad for your teeth? Many of our patients at South Hill Pediatric Dentistry ask us this question, so here’s the scoop.

Energy drinks have been on the rise, taking up more and more space on grocery store shelves. Drinks such as Red Bull, 5-Hour Energy, Monster Assault, Rockstar, and the like promise to jump-start your day, give you more energy, and help you feel more alert. But they also do a lot more than that. Turns out, they do a pretty good job of stripping your teeth of enamel, which is a very bad thing.

Many of these energy drinks are loaded with a lot of citric acid. In addition, they are laden with preservatives (not to mention sugar), not only to enhance flavor, but extend shelf life. While enamel loss, tooth decay, teeth sensitivity, and cavities cannot be blamed entirely on energy drinks (improper oral hygiene at home and lack of professional dental care also play a role), they can wreak havoc on the health of your teeth and gums, especially when consumed in more than moderation. Over time, energy drinks can strip enamel, which is the outer layer that protects your teeth.

What can you do?

Although Drs. Coombs, Holmes, and Johnson and our team aren't recommending you drink energy drinks at all, if you must drink one occasionally, there are a few things you can do to minimize the damage to your teeth.

  • Drink through a straw.
  • Don’t hold the drink in your mouth before swallowing.
  • Rinse your mouth with water immediately after drinking this kind of beverage. Water helps both to neutralize the acid and to increase the production of saliva.
  • Chew sugar-free gum immediately after, to increase saliva production.
  • Don’t brush your teeth right after drinking an energy drink. Wait at least an hour instead, because the combination of the acid and brushing will further damage tooth enamel.

The best advice is to refrain from drinking energy drinks altogether. One of the best hydrators is water. Water is a natural energy-booster and hydrator, and it doesn’t contain calories.

Give us a call today at our Spokane, WA  office if you have any questions or concerns about energy drinks and dental health. We can provide additional tips and a treatment plan to help reduce enamel loss, eliminate tooth sensitivity, and repair cavities and tooth decay as a result of drinking energy drinks.

611 E 31st Ave
Spokane, Wa 99203
(509) 315-8500