When Is a “Cavity” Not a Cavity?

July 30th, 2025

Is this a trick question? After all, you and your family probably already know quite a lot about cavities:

  • It all begins when bacteria-filled plaque sticks to teeth and starts to attack enamel. How?
  • Because the bacteria in plaque use the sugars and other foods we eat to produce acids.
  • These acids gradually weaken teeth by dissolving minerals that help make up our enamel (a process called demineralization).
  • Over time, a hole, or cavity, develops in the tooth surface.
  • Left untreated, bacterial decay can spread to the inside of the tooth, creating a more serious cavity.

Dr. Venetia Laganis might discover an unexpected cavity at a regularly scheduled dental exam at our Maple Grove office, but there are also some symptoms that should have you calling for an appointment. A cavity can cause sensitivity when eating something hot or cold, or it can be painful, or you might even notice visible discoloration or damage to the tooth surface.

So, if your child has any of these symptoms, it’s a cavity, right? It might be—but it might not. Sometimes, because the symptoms are similar, what we suspect is a cavity is really enamel erosion.

The bacteria-created acids weaken enamel. But it’s not just bacteria that subject our teeth to acids. Acidic foods are one of the leading causes of tooth erosion.

And while we expect damage from a lifetime of acidic foods and beverages to catch up with us as we age, the fact is that erosion is becoming a problem even for young children. How is this possible? Let’s look at some food chemistry.

Our normal saliva pH level is around a 7, which is neutral. Any number lower is acidic; any number higher is alkaline. Acidic foods have a low pH (the pH of lemon juice, for example, measures between 2 and 3), and can reduce our normal, neutral pH level. When saliva pH levels drop to 5.5 or lower, tooth enamel starts to demineralize, just as it does when exposed to the acids from oral bacteria.

Regularly snacking on citrus and other acidic fruits, fruit juices, flavored drinks, sour candies, and other acidic foods can cause enamel erosion. Especially erosive are sports drinks, energy drinks, and colas, because they contain some combination of citric acid, phosphoric acid and/or carbonation.

So, when might you suspect enamel erosion? Your child might be sensitive to hot or cold foods, or feel pain, or even have noticeable enamel loss or pitting. Even though these symptoms may not have been caused by plaque and bacteria, acidic erosion from our diets leaves weakened enamel just as vulnerable to cavities and decay.

How to avoid erosion?

  • Serve acidic foods sparingly, or as part of a meal. This helps our saliva pH stay in the neutral zone.
  • Balance acidic foods with low-acid choices to neutralize acids and restore a normal pH balance. For example, mix those acidic berries with a banana.
  • Use a straw! These are not only fun, but this simple solution keeps erosive drinks from bathing young teeth in acids.
  • Encourage your child to drink water instead of an acidic beverage, or drink it afterward to rinse acids away. The pH of pure water? A perfect, neutral 7. And by using tap water instead of bottled water, you’ll be providing fluoride, which helps strengthen enamel.
  • What about brushing right after eating or drinking something acidic? Ask Dr. Venetia Laganis if your child should rush for the brush. We may recommend waiting 30 minutes or so after an acidic treat to give the teeth time to remineralize. Otherwise, brushing might cause more wear and tear on enamel.
  • Finally, while foods are often the source of acid erosion, medical conditions can cause erosion as well. Talk to us about ways to minimize erosion while addressing these medical needs.

Be proactive. Ask your Dr. Venetia Laganis about healthy drinks and snacks for healthy teeth. Make sure to keep on top of brushing and flossing, and stick with fluoride toothpastes. And visit our Maple Grove office regularly for exams and cleanings.

There’s really no trick to it—preventing enamel erosion helps keep your child’s teeth structurally strong and cavity-free for a lifetime of beautiful and healthy adult smiles.

Dental Emergencies while Traveling

July 23rd, 2025

You’ve planned your dream vacation. Your reservations are made. You’re packed and ready. You’ve even scheduled a dental checkup at our Maple Grove office to make sure you catch any potential problems, have finished any major work, and have an up-to-date chart.

But things don’t always go according to even the best of plans. So, what to do if you find you have a dental emergency while traveling? Dr. Venetia Laganis and our team have some recommendations for problems that might arise.

  • Toothache—Rinse your mouth with warm water and use dental floss to remove any food particles. Never put aspirin directly on a tooth or gum tissue. If the pain persists, call a dentist.
  • Cracked or broken tooth—Immediately rinse with warm water to clean the area and apply cold compresses to the face to minimize swelling. Get in touch with a dentist.
  • If you lose a tooth—Keep the tooth moist at all times. Put the tooth back in the socket without touching the root if possible. If that is not an option, place the tooth between the cheek and gums or in milk. See a dentist as soon as possible.

Know where to get help if you need it! If you are traveling in the United States, the American Dental Association offers Find-a-Dentist, a website that can locate a member dentist closest to you. If you are traveling to another country, there are steps you can take to prepare for an emergency.

  • If you are out of the country and need to locate a dentist, your local embassy or consulate, your hotel concierge, or friends abroad can be a useful resource.
  • Before you go, check your insurance to see if you are covered while traveling.
  • If you have travel insurance, find out if it covers dental treatment and can provide information on qualified local dentists and translation help, if necessary.
  • Good dental care is available in many areas internationally, but it is important to know what standards are present in the countries you plan to visit. The Organization for Safety and Asepsis Procedures offers a checklist for safe treatment in their “Traveler’s Guide to Safe Dental Care.”

If you have any questions, Dr. Venetia Laganis and our team are happy to do all we can to answer them. While it’s unlikely that problems will arise, we are always available if you need to contact our Maple Grove office. Bon voyage, and we look forward to hearing about your trip!

Teens and Gum Disease

July 16th, 2025

You have a lot going on. School. Sports. Activities. Family. Friends. Teens lead busy lives and have busy schedules, so you need to budget your time and energy. One thing you don’t want to spend any of your time and energy on? Dealing with gum disease.

Gum disease most often begins as a reaction to plaque and tartar. The bacteria in plaque produce acids which irritate gum tissue, causing inflammation, swelling, and bleeding. This is gingivitis, the early stage of gum disease.

Left untreated, early gum disease can become periodontitis. Periodontitis is a serious gum infection which can cause receding gums, loose teeth, and even tooth and bone loss.

We usually think about gum disease as something that only older adults worry about. But the unfortunate fact is that children and teens are also at risk for gum disease—and the teen years bring special risks. Why?

  • Braces

The teen years are the most common years for orthodontic treatment. Wearing traditional or lingual braces can make removing plaque from around brackets and wires, between the teeth, and near the gum line more challenging, and gum disease can be the result. When you’ve been working so hard to create a healthy attractive smile, you don’t want to delay your orthodontic progress to treat gum disease.

  • Less-than-Nutritious Snacking

When you have after school commitments like sports practices, play rehearsals, or work, you probably carry a snack to give you the energy you need until dinner. Popular snacks like energy drinks, chips, or candy bars are common go-to choices, but they contain acids, simple carbs, and sugars which are bad for both gums and tooth enamel.

  • Hormones

Increased hormone levels during puberty can make the gums more sensitive and more easily irritated.

  • Your Busy Life

Maybe you’re not getting enough sleep. Or eating as well as you could. Or you’re feeling anxious. Lack of sleep, poor nutrition, and stress can affect your body’s immune system and your ability to fight off infection. And if you’re also not brushing and flossing regularly, your gum health can really suffer.

How do you know if you have gum disease? Good question! Sometimes the early stages of gum disease aren’t obvious. Perhaps you’ve noticed changes in your gums, such as:

  • Redness
  • Swelling
  • Soreness
  • Bleeding
  • Bad breath even after brushing

Any of these changes can be symptoms of gum disease and are a good reason to give our Maple Grove office a call, since time is important when treating gum disease.

Caught early, gingivitis is usually very treatable—in fact, you can often reverse early gingivitis by paying more attention to your daily dental hygiene. If gingivitis is more advanced, or if periodontitis develops, you need professional dental care to prevent serious damage to your gums, teeth, and bone.

Preventing gum disease from ever developing is always best, though, so let’s look at what you can do to keep gum disease from becoming a problem.

  • Keep Up with Healthy Dental Habits

Even though you’re leading a busy life, take time for your dental care. Brushing twice a day for at least two minutes per session and flossing once a day take just a bit of your time and are the best way to keep your gums healthy. If you wear braces or have a tendency toward cavities and gum disease, Dr. Venetia Laganis might recommend brushing or flossing more often.

  • Use the Right Tools

Using the right tools makes a big difference. You should always choose a toothbrush with soft bristles to protect your delicate gum tissue—especially if it’s extra sensitive. Too-harsh brushing can damage even your super-hard tooth enamel, so you can imagine what it can do to your gums! Change out your brush every three to four months when it starts to get frayed and worn.

If you wear braces, ask Dr. Venetia Laganis to recommend the best kind of floss to clean between your teeth and around your brackets and wires. The right tools will make flossing a lot easier, and will help you keep your gums healthy and your orthodontic treatment on track.

  • No Matter How Busy You Are, Treat Yourself Well

Watch your diet. Drinking water to hydrate is a healthy (and inexpensive) alternative to sugary and acidic drinks. When you know you have after-school commitments, pack yourself a healthy snack. After snacking, it’s a good idea to rinse with water when you can’t brush to remove any food particles sticking around your teeth and gums.

And even though your schedule is demanding, caring for your mind and body should be a priority. If you have difficulties with sleep or stress, or questions about a nutritious diet, talk to your doctor for some valuable tips to make your daily life healthier and more enjoyable.

With so much going on in your active life, gum problems are problems you really don’t need. Make room in your schedule now for careful daily brushing and flossing, a healthy lifestyle, and regular visits to Laganis Pediatric Dentistry, and you’ll be living that active life with a beautiful, healthy smile!

Kids and Teeth Grinding

July 9th, 2025

Grind, grind, grind… if your little one happens to be a teeth grinder, you may be familiar with this unpleasant sound. Teeth grinding, or what Dr. Venetia Laganis and our team at Laganis Pediatric Dentistry also call bruxism, is common in children. In fact, three out of ten kids grind or clench their teeth, usually in response to stress, jaw growth, malocclusion, losing teeth, or other discomforts, such as allergies. Kids typically outgrow teeth grinding by the time they reach their teenage years.

Many kids who grind their teeth in their sleep have no idea they’re doing it. In fact, when they wake up in the morning they feel no jaw, facial, neck, or shoulder pain. In most cases, if it hadn’t been for a parent or sibling telling them about it, the teeth grinding would have gone unnoticed.

There are children, however, who wake up with jaw pain, shoulder pain, neck pain, and headaches. Teeth grinding can cause a host of dental complications, from cracked teeth and receding gums to a misaligned jaw. Dr. Venetia Laganis will tell you that teeth grinding is not something to take lightly. Teeth grinding can have serious consequences that, if left untreated, can lead to tooth fractures and damage to the temporomandibular joint, also known as TMJ.

The first step in helping your child recover from teeth grinding is noticing and diagnosing the problem. Symptoms of teeth grinding typically include:

  • Grinding noises when your child is sleeping
  • Complaints of tightness or pain in the jaw
  • Complaints of headaches, earaches, or facial pain
  • Complaints of pain when chewing
  • Tooth sensitivity
  • Chipped, worn down, or loose teeth

If you suspect your child is a teeth grinder, Dr. Venetia Laganis and our team will be able to help. Please give us a call at our convenient Maple Grove office! We look forward to treating your child!