Interproximal Cavities: The Inside Story

October 17th, 2025

Time to brush! So, you make sure you gently brush the plaque off the outside surfaces of your teeth. You want to present a gleaming smile to the world, after all. And you make sure to brush the inside surfaces as well, because who wants to feel a fuzzy patch of plaque every time their tongue hits their teeth? And, naturally, you remember to clean the tops of your molars, because those crevices make them more cavity-prone than any other surface.

Done? Not quite!

You might be surprised to learn that no matter how well you’ve brushed all the visible surfaces of your teeth, you’ve left quite a bit of enamel untouched—the adjoining, or touching, surfaces of the teeth that sit next to each other.

You’ve probably noticed that your bristles can’t . . . quite . . . reach all the enamel between your teeth (especially between your molars!) when you’re brushing. This means that food particles and plaque have an easier time sticking around. And when the bacteria in plaque are left undisturbed, especially with a banquet of food particles available, they produce acids which gradually eat away at the enamel covering our teeth, creating a cavity.

Here’s where we work in some specific dental vocabulary. “Interproximal” means between the adjoining, or touching, surfaces of the teeth. And an interproximal cavity is a cavity that develops on one of those side surfaces of your teeth.

  • Preventing Interproximal Cavities

Fortunately, prevention is about as basic as it can be—brushing and flossing effectively. Dentists recommend brushing for two minutes at least twice a day and flossing once each day. While most of us are good about keeping up with brushing, sometimes that daily flossing is more a goal than a reality.

But it’s flossing which really does the trick when it comes to interproximal cleaning. If you floss correctly, food particles and plaque are removed from between the teeth and around the gum line—places where bristles just can’t reach.

When you wear braces, though, flossing isn’t quite so basic. Getting that floss just where it needs to be in between brackets and wires and in between teeth can be a challenge!

The good news is there are many products designed just to make flossing easier while you’re in orthodontic treatment:

  • Floss threaders are flexible hoops that help you thread floss behind your wires easily.
  • Precut floss strands use a stiff tip at one end for threading floss through wires.
  • Interproximal brushes are tiny, cone-shaped brushes which can fit between your teeth and braces for precise cleaning.
  • Water flossers eliminate floss altogether, using a pulsing stream of water to clean between and around teeth and braces.

During your next visit to our San Diego office, Dr. Allen can give you tips on how to use any of these tools effectively for cleaner teeth and cleaner braces.

Preventing cavities on the exterior surfaces of your teeth is probably pretty much automatic by now, but don’t forget the potential for stealth decay! If we find signs of erosion on the sides of your teeth, or if your hygienist lets you know that you’ve got a lot of interproximal plaque buildup, work with your dental team to make sure “interproximal cavity” doesn’t become a working part of your dental vocabulary.

October Is Orthodontic Health Month!

October 16th, 2025

October’s here! A month when we celebrate the beauty of fall, the taste of pumpkin spice, the fun of Halloween in San Diego, and the healthy smiles which orthodontic treatment makes possible!

Because October is Orthodontic Health Month, and it’s a great time to talk about how your orthodontist helps you create not just a more beautiful smile, but a healthier one. 

Straight, evenly spaced teeth are the visible benefit of treatment, but there are many health benefits which might not be quite as noticeable. Orthodontic treatment can:

  • Help You Prevent Cavities and Gum Disease 

When teeth are crowded or crooked, it’s hard for your toothbrush and floss to reach all of the plaque which builds up on and between your teeth. The bacteria in plaque create acids which start to dissolve tooth enamel. And a very small hole in the enamel surface can grow until it becomes a cavity. 

Plaque and bacteria also irritate the gums. When you can’t remove plaque completely, your gums are at risk for gingivitis. This early stage of gum disease causes redness, tenderness, swelling, and bleeding. Left untreated, gingivitis can develop into more serious gum disease. 

And, over time, plaque hardens and becomes tartar, which needs to be removed by a dental professional.

When your teeth are straight and evenly spaced, brushing and flossing are both easier and more effective, helping you keep your teeth and gums healthy and plaque-free.

  • Create a Better Bite

For a healthy bite, your teeth and jaws need to align correctly. The top teeth should slightly overlap the lower teeth, and the ridges of your upper molars should fit smoothly with the grooves of your lower molars. 

Malocclusions, or bad bites, can come in many forms, including overbites, underbites, open bites, cross bites, and overjets. A bad bite is bad for your dental health. Malocclusions can cause tooth grinding, worn enamel, and even cracked teeth. 

And bad bites don’t just affect your teeth. When your bite doesn’t align properly, you might suffer from problems such as headaches, jaw pain, indigestion, and sleep apnea. 

Orthodontic treatment creates a healthy, symmetrical, and pain-free bite.

  • Improve Your Self-Confidence

We can’t forget the invisible health benefits of orthodontic treatment! Your smile is a gift which you share with the world. But if you’re hesitating to smile because of self-consciousness about your teeth or bite, orthodontic treatment can make a world of difference.

Dr. Allen can help you achieve straighter teeth, a bite which fits together properly, and, when malocclusions affect jaw symmetry, a more balanced facial profile. If you’re concerned about the appearance of your smile, ask Davis Orthodontics for an orthodontic consultation. Today’s technology can even let you see what your future smile will look like!

Modern orthodontic treatment is more effective and takes less time to complete than ever before. And orthodontics offers patients of all ages more benefits than ever before: 

  • New types of braces are less noticeable and more comfortable than older styles. Smaller brackets, brackets which blend with tooth enamel, clear aligners, and lingual braces give you a variety of options to customize your treatment.
  • Early orthodontic treatment can guide jaw growth in younger children. 
  • Appliances can help with jaw alignment in older children, or, for more serious malocclusions, an orthodontist can coordinate treatment with an oral surgeon.
  • Treatment isn’t limited to the teen years. Adults make up a large and growing number of orthodontic patients. 

If you’ve been considering orthodontic treatment, October—or any month!—is a great time to schedule a visit with an orthodontist. An orthodontic evaluation will let you know just what your orthodontist can do to help you create a beautiful and healthy smile.

How Often Should You Brush?

September 24th, 2025

If you’ve been following your dentist’s advice, you know that you should be devoting two minutes twice a day to gentle, thorough brushing, and floss carefully at least once a day. It’s automatic. It’s habit. You’re in the zone. Now that you have braces or aligners, though, it’s time to step up your game!

Removing Food Particles

No one wants to worry about food particles stuck in braces right after lunch—or, worse, noticed hours after lunch! Because food tends to stick around brackets and wires, Dr. Allen and our San Diego team recommend brushing after a meal. Not only will you be confident in your smile, you’ll be improving your dental health.

But why?

Better Plaque Removal

Plaque is a sticky film containing acid-producing bacteria. These acids lead to weakened enamel and, eventually, cavities. Careful brushing with a fluoride toothpaste helps eliminate plaque. But as you may have discovered, it can be more difficult to clean around brackets and wires. Brushing after eating will help keep plaque from forming on your enamel, and using the right tools (floss made for braces and interproximal brushes) will help clean plaque more effectively.

But what about aligners?

If you wear clear aligners, you take them out when you eat. This avoids the problem of food particles trapped in brackets and difficulty brushing around wires. But this doesn’t mean you are home free. Brushing after every meal is also a good idea when you wear aligners.

Our teeth have an organic way to help remove food particles, acids, and bacteria between brushings—saliva! Your aligners, while covering your teeth, decrease their exposure to saliva. It’s really important, then, to make sure you brush after eating. Otherwise, food particles and acids can remain on your teeth after you replace your aligners, increasing the risk of enamel erosion and decay.

Brushing helps keep your aligners clear as well. If you notice aligner discoloration, this could be the result of food residue such as tomato sauce or coffee that remained on the teeth after a meal. Anything that stains your enamel can stain your aligners. And don’t forget about plaque. Plaque can stick not only to your enamel but to your aligners as well. If you notice that your aligners are cloudy, or have an unpleasant odor, talk to us about the best way to keep them their cleanest.

Make a Plan

So, what can you do to make brushing more convenient during a busy day? Be prepared! Keep a small kit with you containing a travel brush, a small tube of toothpaste, floss, and an interproximal brush for quick cleanings when you’re out and about, and you’ll never have to worry about your smile.

Of course, there are occasions when it’s just not possible to brush. At times like this, whether you have traditional braces or aligners, it’s a good idea to rinse well with water after meals or snacks, and brush as soon as you can.

Start your new dental routine now, and soon it will be automatic. An everyday habit. Your new comfort zone. After all, taking a few extra minutes from your day to brush after every meal will be well worth it when you end your orthodontic treatment with a smile that is as healthy as it is beautiful!

What Your Braces Rubber Band Color Says About You

September 17th, 2025

However you may feel about having to wear braces, choosing the color of your rubber bands is sure to bring a smile to your face. Whether you want to express your creativity, coordinate your braces with your outfits, or show some serious school spirit, decorating your mouth with colorful bands takes some of the stress and self-consciousness out of wearing braces. So what do your rubber band colors say about you? Look no further than our rubber band horoscope.

Red. You’re intense and forward thinking, and that you won’t back down no matter how big the challenge. Red is also the color of the heart, so red rubber bands indicate that you’re a caring, loving person.

Blue. Blue means you’re chill – as cool as a cucumber. You’re one cool customer, as the saying goes. You’re relaxed and calm, even when your mom says you can’t chew any gum or eat popcorn because of your braces.

Green. Look at a traffic light and green means go, right? So you’re the type of person who’s always on the move. Go, go, go! It also means you’re generous and kind. Green is the color of nature and spring, so it says you love Mother Earth. Perhaps you even recycle. Green is the color of good luck.

Orange. You’re daring and wild, flamboyant and fun. Orange may indicate you’re an artist or a drama student. It says you have a big personality and that you don’t care what other people think about you. However, orange is also the color of balance and energy. And being flamboyant and fun takes a lot of energy!

Purple. You’re the creative type, for sure. You beat to a different drummer and think outside the box. It says you're mysterious. Purple is the color of royalty, and when you wear your purple rubber bands you are royally cool.

Color Combinations

What if you can’t choose just one color? Well, you can decorate your teeth with alternating colors. You can choose the colors of your favorite sports team or holiday colors like red and green. If you’re still stumped as to what colors to choose, ask Dr. Allen or a member of our team. We can let you in on all the trends our other patents are sporting at our San Diego office!