Just What Is a Cavity, Anyway?

The grownups in your life encourage you to brush and floss, eat healthy foods, and visit us in the dental office for exams and cleanings. Why? Because we all want to help you prevent cavities.

So you might be wondering, just what are cavities? How do we get them? What do they do to our teeth? How can we prevent them? Let’s talk!

Our teeth need to be strong to bite and chew. That’s why they are protected by a coating called enamel, which is made up of very hard minerals. Enamel is the strongest part of our bodies—stronger even than our bones. But this doesn’t mean nothing can hurt it! And cavities, also called tooth decay, are one of the most common dangers facing our enamel.

So, what are cavities?

A cavity is a hole in your tooth enamel. If your tooth is not cleaned and repaired when a cavity is small, this hole can grow bigger until tooth decay reaches the inside of your tooth. Enamel doesn’t heal when it’s damaged, so you need to see a dentist to make your tooth healthy again.

How do we get cavities?

Bacteria are tiny little germs. Many kinds of bacteria live in our bodies, and some of them are quite helpful. The bacteria that cause cavities are not. These unhelpful bacteria join with our saliva and very small pieces of the food we’ve chewed to make a sticky film called plaque.

Like other living things, the bacteria in plaque need food. They get that food from the foods we eat, especially sugars and starches. As they eat, they change these sugars and starches into acids, and these acids attack the minerals that keep enamel hard and strong.

Because plaque sticks to our teeth, bacterial acids are able to make weak spots in enamel if the plaque isn’t brushed away. If you see a white spot on your tooth, which could mean that your enamel is losing minerals, and getting weaker.

What do cavities do to our teeth?

Over time, weak spots can grow bigger until there’s a hole in the enamel surface. If the cavity in your enamel is small, you might not notice it at first. But cavities can become wider and deeper, and even break through enamel to reach the inside of your tooth.

The inside of each tooth holds pulp, the part of your tooth that keeps it healthy. If tooth decay spreads to the pulp, it can cause more damage and infection, so it’s important to treat a cavity right away.

Dark spots on your enamel, a toothache, pain when you drink something hot or cold or when you bite down—these can be clues that you have a cavity, and you should visit us for an exam.

How can you prevent cavities?

Even better than treating a cavity is preventing one. Let’s make a list of some helpful do’s and don’ts for cavity prevention:

  • Do: Feed yourself foods that are good for you.

Foods like milk and cheese and many dark green vegetables have lots of calcium and vitamin D to help keep your enamel strong.

  • Don’t: Feed bacteria foods that are good for them.

Sugar and simple starches like potato chips are the kinds of foods bacteria like best, because they are easy to break down. This means more acids to attack your enamel.

This doesn’t mean you should never enjoy a treat! But eating lots of starchy snacks and drinking sugary sodas means more plaque, and more plaque can mean more cavities. If you’re eating something starchy or sweet, it’s a good idea to brush or rinse afterward.

  • Do: Brush at least twice a day, for at least two minutes, with fluoride toothpaste.

This is the best way to get rid of plaque, which builds up every day. And fluoride toothpaste even helps make your enamel stronger.

  • Don’t: Forget to floss.

Flossing takes a while to learn to do well, but it’s very important. Flossing helps prevent cavities between the teeth and near the gums.

  • Do: Visit our Brooklyn, New York office for exams and cleanings.

Not only will we look for cavities, we’ll let you know the best way to brush and floss so you can get your teeth their cleanest. We even have special coatings called sealants that can protect your teeth from plaque.

  • Don’t: Feel bad if you get a cavity!

Some people are more likely to get cavities than others, even when they brush just right and eat healthy foods. If you have a cavity, we can remove decay and repair your tooth with a filling.

And one last thing to do: talk to the doctor if you have any questions about the best ways to protect your teeth from cavities. We have lots of suggestions to help you take care of your healthy, beautiful smile!

Our Location

150 4th Avenue, Brooklyn, NY 11217 (between Butler St. & Douglas St.)

Hours of Operation

Our Regular Schedule

Park Slope Kids Dental Care

Monday:

2:00 pm-7:00 pm

alternating

Tuesday:

2:00 pm-7:00 pm

Wednesday:

2:00 pm-7:00 pm

Thursday:

9:00 am-5:00 pm

Friday:

9:00 am-5:00 pm

Saturday:

9:00 am-2:00 pm

alternating

Sunday:

Closed

  • "My child had the best check-up ever… she even had to have a filling. My daughter didn’t feel any pain and said she really liked Dr Francis!! The office is also great and inviting. Overall a great experience."
    Felicia G.
  • "If you are looking for the perfect place to take your little one for his/her super-important first dental visit, this is the PERFECT FIT! I noticed the new practice that opened up in the neighborhood near where I work, and I’m so glad I gave it a try! Dr. Francis was amazing she made my little guy (he’s 3) feel completely at ease for his first appointment at the dentist. He don’t even cry once! If you knew my kid, you would know that is a major accomplishment! The office is clean and modern with state of the art equipment; totally unexpected for a kids dental office. I have decided to officially make Dr. Francis my munchkin’s dentist! I would definitely recommend the office to other parents and I have already passed the info along to friends and coworkers."
    Melanie M
  • "I have 3-year old twins and we visited Park Slope Kids Dental Care on 3/1 and it was a great experience. Dr. Francis is fantastic and her staff are wonderful. I had to reschedule my appointment at the last minute and they were super accommodating. The office is beautiful and kid-friendly–really. I’ve been to other offices where they claim to be kid-friendly and all I can see that makes it “friendly” are a few books and pint-size chairs. Nicole–mom to C & P (the best gifts ever)"
    Nicole M.
  • "Dr. T Francis at Park Slope Kids Dental Care is great. At our appt yesterday, I hadn’t wanted to let all three to the exam room at once because they would incite a riot, but the doctor said that she welcomed it. She also let my eldest hold instruments during her sisters’ exam. Lovely doctor; great practice."
    Nicole M
  • "I like that this a friendly kids environment dentist office. They make the kids very comfortable and happy smiling teeth. I recommend to every parent who looking for a kid zone dentist office that won’t have your kids screaming their head off."
    Tanya R.
  • "I cannot rave enough about this place! Dr. Francis was amazing and the staff was friendly and professional. The office is clean and modern, with lots of cool activities for kids. I like it that they will accomodate you if you don’t want your kid watching tv! A huge plus in my book! My son is 4 and the exam went off without a hitch. Before we knew it, his teeth were clean, his issues were addressed, and we were out the door with a balloon and a goodie bag! I was dreading this day, but we made it out without my son having a metldown! Dr. Francis is a godsend. This will be his dentist through college!!!!"
    Martien J