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Canker sores, cold sores, and mouth sores: What's the difference?

February 18th, 2026

At Small Smiles LLC, we know many people have experienced some form of mouth sores or irritation. Some mouth sores are harmless and go away on their own after a few days, while others are more serious and should not be ignored. Mouth sores occur for many different reasons, but bacterial infections, viruses, or funguses often trigger them. The best way to tell the difference between a canker sore and a cold sore is that canker sores occur inside the mouth while cold sores occur on the outside the mouth.

The most common mouth sores are:

Canker sores: A non-contagious, small, grayish ulcer with a red border, canker sores appear inside the mouth. While outside factors such as stress, fatigue, or allergies may increase the chances of developing a canker sore, most health experts believe they stem from bacteria or a virus that attacks the immune system. Canker sores typically heal within a week or two.

Cold sores: Also called fever blisters, cold sores are contagious groups of fluid-filled blisters that often erupt around the lips and sometimes under the nose or around the chin. Cold sores are the result of the herpes simplex virus, and once infected, the virus remains in the person’s blood stream.

Leukoplakia: A potential warning sign of oral cancer, leukoplakia is a premalignant lesion that appears as a white patch on the inside of the mouth, tongue, or gums. The lesions, which are caused by excessive cell growth, usually afflict those who smoke tobacco. David Jones may choose to have the lesion biopsied if the outbreak appears severe.

Oral candidiasis: Also called oral thrush or moniliasis, this condition is caused by the overgrowth of a type of yeast called candida. Common symptoms of oral candidiasis include white spots inside the mouth and on the tongue, redness or discomfort in the mouth area, sore throat,difficulty swallowing, and cracking at the corners of the mouth. It is important to visit David Jones if you have oral candidiasis. If left untreated, it may infect your bloodstream, which can be very dangerous. Healthy adults do not usually get thrush, and the condition is most often seen in infants, the elderly, patients undergoing chemotherapy, or people with AIDS or other diseases that are known to weaken the immune system.

Should you have a mouth sore that lasts a week or longer, we encourage you to give us a call and schedule an examination at our Naperville, Illinois office.

The Start of Valentine’s Day

February 11th, 2026

Valentine’s Day, also known as Saint Valentine’s Day, has been said to originate with a Catholic priest named Valentine several thousand year ago. Valentine defied the emperor at the time by secretly marrying men and their brides after the emperor had made it illegal to marry. Emperor Claudius II did this because he wanted as many single young men to fight in his war as he could get.

Valentine disobeyed the emperor’s edict by continuing to marry couples until he was sentenced to death. Before his execution, he sent a letter to a secret love and signed it “From your Valentine.” David Jones and our team have come up with some suggestions on how you can celebrate this Valentine’s Day, whether you have a valentine of your own or not.

Valentine's Day Ideas

  • Enjoy a tasty treat. There are plenty of options when it comes to cooking and/or baking on Valentine’s Day. Make your significant other his or her favorite meal or sweet treat, or make your own favorite dish to enjoy on this day. Oh, and be sure to make enough for leftovers!
  • Make a personalized card. Instead of buying a card from the grocery store, take the time to make your own for a loved one. People love handwritten notes, especially when it’s from someone special. If you’re single this Valentine’s Day, make a card for fellow single friend to brighten the day and remind the person that he or she is also loved.
  • Watch a movie. We all know there are plenty of romance movies out there. Put on your favorite romantic comedy, or pick up your significant other’s favorite movie to watch together. Even better, if you’re single, pick up your own favorite movies to watch to pass the time this Valentine’s Day.
  • Do nothing! We all know Valentine’s Day can sometimes get a lot of hype. If you’re worried about not making a reservation in time, don’t feel like planning an extravagant night out, or simply not in the holiday mood this year, spend your day sitting back and relaxing.

Valentine’s Day is a time to celebrate love and spend quality hours with the people you care about the most. Whether you’re in a relationship or single, take some time today to appreciate those you love in your life.

We wish you a happy Valentine’s Day celebration and look forward to seeing you at our Naperville, Illinois office during your next appointment.

February is Heart Month

February 4th, 2026

The American Academy of Periodontology stresses the importance of good oral health since gum disease may be linked to heart disease and stroke. Thus far, no cause-and-effect relationship has been established, but there are multiple theories to explain the link between heart disease and periodontal disease. One theory suggests that oral bacteria may affect heart health when it enters the blood and attaches to the fatty plaque in the heart's blood vessels. This can cause the formation of blood clots. Another theory suggests the possibility that inflammation could be a contributing link between periodontal disease and heart disease. Gum disease increases plaque buildup, and inflamed gums may also contribute to the development of swollen or inflamed coronary arteries.

What is coronary artery disease?

Coronary artery disease is caused in part by the buildup of fatty proteins on the walls of the coronary arteries. Blood clots cut off blood flow, preventing oxygen and nutrients from getting to the heart. Both blood clots and the buildup of fatty proteins (also called plaque) on the walls of the coronary arteries may lead to a heart attack. Moreover, periodontal disease nearly doubles the likelihood that someone will suffer from coronary artery disease. Periodontal disease can also worsen existing heart conditions, so many patients who suffer from heart disease need to take antibiotics before any dental procedures. This is especially true of patients who are at greatest risk for contracting infective endocarditis (inflammation of the inner layer of the heart). The fact that more than 2,400 people die from heart disease each day makes it a major public health issue. It is also the leading killer of both men and women in the United States today.

What is periodontal disease?

Periodontal disease is a chronic inflammatory disease that destroys the bone and gum tissues around the teeth, reducing or potentially eradicating the system that supports your teeth. It affects roughly 75 percent of Americans, and is the leading cause of adult tooth loss. People who suffer from periodontal disease may notice that their gums swell and/or bleed when they brush their teeth.

Although there is no definitive proof to support the theory that oral bacteria affects the heart, it is widely acknowledged better oral health contributes to overall better health. When people take good care of their teeth, get thorough exams, and a professional cleaning twice a year, the buildup of plaque on the teeth is lessened. A healthy, well-balanced diet will also contribute to better oral and heart health. There is a lot of truth to the saying "you are what you eat." If you have any questions about you periodontal disease and your overall health, give our Naperville, Illinois office a call!

Healthy Digestion Begins with Healthy Teeth

January 28th, 2026

You’re careful about what your family eats, because, after all, their oral health depends on it. Without the necessary proteins, vitamins, and minerals in their diets, children’s teeth and gums are at risk for decay and disease. But did you know it’s a two-way street? Without healthy teeth and gums, your child’s digestive system can suffer as well.

Because digestion doesn’t start in the stomach—it starts in the mouth! Let’s take a quick look at how the digestive system operates.

  • Teeth

The first step in digesting is breaking down foods so our bodies can extract nutrients more easily. Healthy teeth are essential here. Incisors and canines tear food into smaller pieces while molars grind these pieces into an easy-to-swallow, paste-like consistency. While we chew, the surface area of the food increases, allowing the digestive enzymes in saliva, the stomach, and the small intestine to work more efficiently.

  • Salivary Glands

Saliva production increases when we eat. Digestive enzymes in saliva begin breaking down carbs into sugars, and separating fat molecules. Saliva also contains antimicrobial peptides which are important for oral and gut health.  

  • Esophagus

This muscular tube connects the back of the throat to the stomach. As we swallow, muscles in the esophagus contract and relax, an involuntary movement called peristalsis. These contractions push food down into the stomach. Peristalsis also occurs in the stomach and intestines, efficiently moving food through the rest of the digestive system. 

  • Stomach

Inside the stomach are gastric acids and enzymes which break food down further to help the small intestine make use of these nutrients in the next stage of digestion.

  • Small Intestine

This organ works to reap the benefits of our healthy diets. The small intestine absorbs about 95% of the nutrients from our digested food—carbohydrates, proteins, fat, vitamins, and minerals—and transfers these nutrients to the circulatory system to be used throughout the body. Any remaining food particles travel to the colon, or large intestine.

  • Large Intestine

Bacteria in the large intestine help process soluble fiber, which we can’t digest on our own. The large intestine is also where insoluble fiber and anything else undigested are converted to solid waste. 

Digestion begins in the mouth, and, when dental problems make chewing and swallowing difficult, the entire digestive system can be affected:

  • When children don’t chew thoroughly, food doesn't break down into the paste-like consistency necessary for their digestive systems to process it smoothly.
  • Too little chewing means fewer digestive enzymes to help them digest food once swallowed.
  • Larger or more solid pieces of food make swallowing difficult and increase the risk of choking.
  • When the stomach and intestines have to work harder to break food down, children might suffer heartburn, indigestion, bloating, and constipation. They may not absorb all the nutrients in their food.

Some children might need extra help at home to learn to chew properly. Eat with your child and model healthy chewing. Encourage your child to eat more slowly and to count bites if necessary. It might take a bit of practice, but healthy eating habits are worth it!

Sometimes, though, there’s a dental problem causing chewing difficulties. Children might avoid chewing because of loose baby teeth. They might have a painful cavity or infection. There may be bite problems which make it impossible for the jaws and teeth to meet properly. 

Pediatric dentists generally recommend that children have examinations and cleanings twice a year to discover and treat any oral problems before they become more serious, as well as an orthodontic checkup around the age of seven. Of course, any tooth pain or sensitivity is a good reason to see David Jones immediately. 

When a cavity, an infection, bite problems, or any other dental concerns are causing your child discomfort, the team at Small Smiles LLC in Naperville, Illinois can help restore healthy teeth and healthy digestion—so your child can get all the benefits of your mindful meal planning!