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When Is a “Cavity” Not a Cavity?

July 23rd, 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. Robin E. Lents might discover an unexpected cavity at a regularly scheduled dental exam at our Florence 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. Robin E. Lents 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. Robin E. Lents 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 Florence 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.

Are My Child’s Baby Teeth on Schedule?

July 16th, 2025

Your darling three-month old is crying and fussy—can she be teething already? Or, your happy baby boy has just celebrated his first birthday—with only one tooth in that beautiful, gummy smile. Is this normal? Probably! While baby teeth do typically erupt (come in) in the same order for all babies, and around the same time, there is still a lot of flexibility in the time it takes for a full, healthy smile to develop.

Baby teeth actually form before your baby is born, and those 20 teeth are there under the gums waiting to come out and shine. And even though there are no firm and fast dates for each of these primary teeth to erupt, it’s helpful to have a general overview of typical teething patterns so you know what to look forward to.

Incisors

These little teeth create a charming baby smile, and, if your finger has been in the wrong place at the wrong time, a very sharp one as well! That is because these tiny incisors are made to bite into foods. You might notice this when you introduce solid foods, even if the majority of your child’s “chewing” is done with her back gums. These teeth are the earliest to arrive.

  • Six to ten months old: The lower central incisors (bottom front teeth) are often the first to come in.
  • Eight to 12 months old: The upper incisors (8-12 months) are the next to show.
  • Nine to 13 months old: The upper lateral incisors on each side of the front teeth arrive.
  • Ten to 16 months old: The lower lateral incisors appear.

First Molars

Because these are larger teeth, babies often experience another bout of teething pain at this time. The large flat surface of each molar helps your child to chew and grind food, so he can handle a wider variety of foods and develop his chewing skills.

  • 13 to 19 months old: You can generally expect to see the upper first molars arrive.
  • 14 to 18 months old: The lower first molars appear.

Canines (Cuspids)

Fitting between the first molars and the incisors, the strong, pointed shape of the canine teeth allows your child to grip food and break it apart more easily.

  • 16 to 22 months old: The upper two canines make their way into the space between the incisors and the first molars.
  • 17 to 23 months old: The two lower canines appear.

Second Molars

By the age of three, most children have a full set of baby teeth.

  • 23 to 31 months old: The second pair of bottom molars start erupting—you are in the home stretch!
  • 25 to 33 months old: The upper second molars come in—completing that beautiful set of 20 teeth!

Baby teeth are extremely important, as Dr. Robin E. Lents will tell you when you visit our Florence office. They help your child eat and chew, develop face and jaw muscles, assist proper speech formation, and provide space for the adult teeth to come in properly. Now that your child’s smile is complete, keep providing him with the same care and attention you have been giving those little teeth since the arrival of the very first incisor.

It seems that so much of new parenthood is scheduling—when to feed her, when to put her to bed, how many hours between naps. But we soon find out that every baby is not on the same schedule, and the same is true for the arrival of their teeth. We should see your baby when that first tooth comes in, or by his or her first birthday. And if you ever have concerns at any time about your child’s teething schedule or teething delays, always feel free to give us a call.

Five Tips for Taking Tots to the Dentist

July 9th, 2025

Toddlers are notoriously balky about strangers. But their first dental visit should not be cause for fear and tears. Nor should you assume that getting your toddler to Shoals Pediatric Dentistry, PC is going to involve a full-blown tantrum or Mafia-style bribery. “Honey, don’t worry. We’ll go get ice cream after…” sort of defeats the purpose of making that first dental appointment.

These five tips will make your toddler’s trip to see Dr. Robin E. Lents as fun as a stop at an amusement park.

1. Before you make a dental appointment for your child, take him or her on a ride-along to one of your dental appointments. Let your son or daughter experience the office and get the lay of the land. Toddlers don’t like surprises. But if your little one is already familiar with the big chair that goes up and down, the next time he or she will have no problem taking a seat.

2. About the big dental chair … well, it’s really an amusement park ride. See how it goes up and down? Toddlers love games, and turning the trip to the dentist into a game is among the oldest (and most successful) tricks in the parent playbook.

3. Positive reinforcement is a good thing. That's why Dr. Robin E. Lents and our staff hand out cool toothbrushes or stickers to children after their appointment. A fun-colored toothbrush with a suction bottom is a good incentive to come back for another cleaning.

4. Timing is everything. Don’t take your child to the dentist an hour before the daily nap. Make the appointment with your child’s schedule in mind. This increases the chances of success.

5. A few days before the scheduled appointment, start reading your toddler bedtimes stories about what happens at the dentist. Dora the Explorer’s Show Me Your Smile, written by Christine Ricci, is a popular dental story that your child might relate to.

Fun Facts for the Fourth

July 2nd, 2025

The Fourth of July is a great time to get together with friends and family members for BBQ, games, fireworks, and other celebrations in honor of our country’s independence. While your fellow revelers eat hot dogs and wave flags, you can impress them by sharing these fascinating facts and historical tidbits about some of our country’s traditions and symbols from the team at Shoals Pediatric Dentistry, PC.

The Statue of Liberty

With a torch in one hand and a tablet in the other, the Statue of Liberty is one of the most iconic and recognizable symbols of our country. However, as recognizable as certain parts of the statue are, not many people know that broken shackles, which represent oppression and tyranny, are lying at Lady Liberty’s feet. According to the Statue of Liberty-Ellis Island Foundation, the copper-plated lady weighs in at a whopping 450,000 tons and has been holding her torch up for more than 125 years, which must make for some impressive arm muscles.

Nathan’s Hot Dog Eating Contest

Since 1916, people have been flocking to Coney Island on the Fourth of July to witness what some people call the “superbowl of competitive eating.” Nathan’s Hot Dog Eating contest challenges competitors to devour as many hot dogs as they can in just ten minutes, with the current record holder swallowing a whopping 68 hot dogs! If you’d like to witness this bizarre and frenzied eating competition but you won’t be anywhere near Coney Island on the fourth, don’t worry. ESPN has been broadcasting this popular event for several years, so you can watch from the comfort of your couch while you eat a reasonably portioned meal.

The History Behind Fireworks

Viewing the nighttime fireworks display is exciting way to finish off the fourth. Many people know that these brilliant displays probably originated with the Chinese. However, many historians also believe that fireworks were stumbled upon when the Chinese roasted bamboo sticks over fires and watched them explode. After many years of roasting the sticks, a group of alchemists created an early form of gunpowder, which they stuffed into the bamboo sticks to create an even more powerful explosion, paving the way for the today’s modern fireworks.

Whether you’re planning on visiting the Statue of Liberty, watching fireworks in Florence, or even participating in a hot dog eating contest, Dr. Robin E. Lents and our team hope you have a safe and fun-filled holiday. Happy Fourth of July!