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Your dashboard lights up when your car needs an oil change. Your family smoke detector beeps when you need to switch out the batteries. But when it’s time to replace your toothbrush, you’re on your own. Luckily, there are several not-too-subtle clues that you should be shopping for a new model.

• Fraying

Is your toothbrush looking a bit scruffy? Do those once orderly bristles look like they have the toothbrush equivalent of bed head? Have some bristles vanished altogether? Time to retire that toothbrush. Once the bristles are frayed, you just can’t reach plaque as effectively, especially where it likes to hide between the teeth.

Are you prematurely fraying? You could be brushing too hard. Overbrushing can injure delicate gum tissue, cause wear and tear to tooth enamel, and even damage your braces. If you find your brush fraying after only a few weeks of use, you might be using too much force. Remember, plaque is a sticky film, but it’s a soft sticky film. Ask us for advice on just how hard you need—or don’t need—to brush.

• Odor

This one really goes without saying—no one wants an aromatic toothbrush! How to make sure your toothbrush is fresh and clean?

Always rinse carefully after you brush. This will get rid of any toothpaste, bits of food, or other particles left on your brush.

Let your toothbrush air dry. It might seem more hygienic to keep your brush covered in a bathroom setting, but a closed, moist container is a perfect breeding ground for germs. Don’t let them make a home in your bristles!

• Illness

A cold or a bacterial infection (like strep throat) is no fun. But now that you’re feeling better, it might be time to throw out your toothbrush. The chances of re-infection are very low, unless your immune system is compromised, but this is a perfect opportunity to replace your brush with a fresh, germ-free model.

And if you share your toothbrush, or if you store it right next to a family member’s (which you really shouldn’t do, for this very reason), germs get shared, too. Quarantine your brush while you’re ill, and replace it once you’re out and about.

• Discomfort

Bigger isn’t necessarily better. A brush with a head that’s too big won’t allow you to get into those small spaces in your mouth where plaque likes to collect. And when you are trying to clean around brackets and wires, a regular brush might be a problem. Ask Dr. Karen Seder for suggestions for the best tools for clean and comfortable brushing.

Also, harder doesn’t mean more effective. A brush with hard bristles can cause damage to your gums and enamel. We almost always recommend soft-bristled brushes for this every reason.

There are so many styles of brush out there, you’re bound to find the perfect fit with a little trial and error. Or ask us for suggestions the next time you’re at our Chicago, IL office for an adjustment!

• You’ve Passed the “Best By” Date

Because of its durable construction, your toothbrush can last a long, long time. But no matter how comfortable and effective your toothbrush is right now, it was never meant to go through life with you. Bristles break down over a period of a few months, and just don’t clean as effectively. Your brush should be changed every three months, and this includes changing the head on your electric toothbrush. And because you wear braces, you’re brushing more often, so that three month lifespan might be stretching it.

Unfortunately, you don’t have a flashing light or annoying beep to remind you when it’s time to change brushes, so you’ll have to devise your own reminders. Reminder apps, calendar notes, the first day of a new season—use whatever works best for you. 

Don’t ignore the clues your toothbrush is leaving you. Replacing your brush whenever it’s necessary helps guarantee that the time you spend cleaning your teeth and gums will lead to confident, healthy smiles. Case closed!

Let’s talk science! From the vastness of the cosmos to sub-atomic particles, science helps us understand the world around us and how it works. So, let’s take some familiar scientific fields of study and apply them to your toothbrush.

My toothbrush?

Yes, indeed! When it comes to your oral health, your toothbrush is the first line of defense, so understanding how and why it works so well might help us use this handy tool even more effectively.

Biology—the study of living organisms

Unfortunately for your toothbrush, the living organisms we’re talking about here are the bacteria which cause tooth decay and those which can lead to illness. How do these problems arise, and how do we prevent them?

Fight Plaque

Plaque is the sticky film that builds up on teeth, and millions of oral bacteria help make up this biofilm. These bacteria convert sugars and other carbohydrates in the foods we eat into acids. And these acids erode our tooth enamel, leading to tooth decay. (More on this when we get to Chemistry.) The best ways to get rid of plaque?

• Brush often. The recommended minimum is two minutes of brushing twice a day, but when you’re having orthodontic work done, it’s even more important to banish the plaque that can stick to your braces or inside aligners. Ask us what brushing schedule is best for you.
• Try an electric toothbrush. For some people with braces, cleaning the teeth is easier and more thorough with an electric brush.
• Replace your brush regularly. Brushes become worn and frayed after three or four months, and you won’t be brushing as effectively.

Stop Germs from Spreading

• Don’t share. Sharing toothbrushes can lead to an increased risk of colds and infections.
• Rinse thoroughly after brushing, making sure you remove any toothpaste or debris left after you brush.
• Store the brush upright and let it air-dry. Covering the brush or keeping it in a closed container can promote the growth of bacteria more easily.
• Keep different brushes separate when they’re drying to avoid cross-contamination.
• Replace your brush regularly!

Chemistry—the study of what makes up substances, their properties, and how they interact

When it comes to improving your brushing chemistry, the best thing you can do for your toothbrush is to put a dab of fluoride toothpaste on it! Why fluoride? Let’s look at the chemistry of tooth enamel.

Tooth enamel is the strongest substance in our bodies—even stronger than bone. But it is not indestructible, and acidic substances can dissolve the mineral bonds which give our enamel its strength, whether they come from the bacteria in plaque or are found in our favorite foods and drinks (sodas, coffee, tomatoes, and citrus are among the tasty, but acidic, culprits).

The enamel in our teeth contains calcium and phosphate ions, minerals which help make it the strongest substance in our bodies. But when the level of acidity in our mouths becomes too high, these minerals begin to dissolve. Eventually, teeth become pitted, bacteria can penetrate more deeply, and decay is the result.

So what can we do? While our saliva helps neutralize acidity naturally, and we can cut back on acidic foods in our diets, using fluoride toothpaste actually helps restore the strength of our enamel in a process known as “remineralization.”

Fluoride works on the surface of enamel to both attract and anchor calcium ions, reducing mineral loss and strengthening the weakened enamel. Fluoride also interacts with the calcium and phosphate compound to create a new compound that is even stronger and more acid-resistant.

When you brush with fluoride toothpaste, you help replace and restore the mineral composition of your enamel—and there’s evidence that fluoride might even interfere with oral bacteria’s ability to produce acid. Now that’s good chemistry!

Physics—the study of matter and energy and their interactions

The matter here is your tooth enamel, and the energy is the force you use when brushing. And this is one time the force should not be with you.

• Over-vigorous brushing can not only damage your brackets, but can also irritate delicate gum tissue and wear down enamel. A “sawing” back-and-forth motion is both hard on your enamel and misses plaque and debris between the teeth. We’ll be happy to show you the safest and most effective way to brush with braces. Just remember, “Massage, don’t scrub.”
• A soft toothbrush is almost always your best option when you use a manual brush, but if you’re still a heavy-handed brusher, or have sensitive teeth and gums, consider an electric model. An electric toothbrush should provide a continuous brushing motion without needing any heavy pressure from the brusher. Some models will even let you know when you are brushing too hard.

Brushing harder is not brushing better, and your teeth, gums, and braces will be heathier with careful brushing habits. If you need tips on brushing with braces, contact our Chicago, IL office and ask!

There’s a lot of science in the simple act of brushing, but we don’t need to spend hours studying to get a passing grade in dental health. The things you do normally—brushing at least two minutes twice a day, using fluoride toothpaste, and applying proper brushing technique—will help create a smile which will earn you top marks from Dr. Karen Seder for a lifetime!

One of the many benefits of your clear aligners is that you can remove them to eat. You should brush after every meal, just like you would with traditional braces, but cleaning your teeth is much easier without having to work around and between brackets and wires.

But when you wear your aligners 22 hours a day, you might be tempted to leave them in when you’re just having a sip of something when you’re thirsty. Unless you’re drinking water, please don’t.

What’s the problem with a can of cola or a cup of coffee?

• Staining

The virtue of your clear aligners is that they are, well, clear! Probably one of the reasons you decided on this method of treatment was because you liked the idea of an inconspicuous appliance.  Unfortunately, dark beverages such as colas, coffee, tea, and red wine can stain your aligner, making it more visible.

• Warping

Very hot beverages might actually affect the shape of your aligners. Since they are formed using heat, it makes sense that heat can also de-form them. If hot teas and coffee drinks cause a change in the shape of your aligners, they will not move your teeth the way they were meant to.

• Affecting Tooth Health

Even though our enamel is very strong, sugary and acidic drinks can damage it. Acidic foods can erode enamel, and the sugars in our diet provide food for cavity-causing bacteria, which then produce acids that erode enamel.

Normally, saliva provides some protection from acids and sugars by diluting them and washing them away from the teeth. When you drink a cola or an orange juice with your aligners on, some of the liquid will get in them, and can stay in them until the aligners are removed. You will actually give these problem beverages the opportunity to bathe your teeth in sugar and acid over a longer period of time, without exposure to saliva to help offset potential harm. And after all your work to create a beautiful smile, you certainly don’t want new cavities!

How to protect your aligners and keep them their cleanest—and most invisible?

• Take your aligners out before drinking beverages that can stain them, or, if you can’t, try using a straw. Clean your aligners according to Dr. Karen Seder and our team’s instructions to keep them as clear as possible.
• Don’t drink very hot beverages with your aligners in place. Try icing your coffee and tea if you can’t remove your aligners. And if you think your aligners have changed shape, please give us a call.
• Drink water! Water hydrates you, doesn’t damage enamel, and keeps your aligners clean. Tap water is your best option, as even bottled waters can be acidic.

If your aligners should become stained, remember that you change them frequently, so the staining can be a temporary problem. If you do have a drink of something hot and your aligners feel “off,” give our Chicago, IL office a call. We’ll let you know if you need to replace them.

But prevention is always best! Avoid staining from the start by removing your aligners before you drink dark beverages. Don’t expose your aligners to heat. Think about replacing unhealthy drinks with water. And certainly brush right away, or rinse with water if that’s not possible, if you drink a sugary or acidic beverage. These simple precautions will help keep your aligners, and, most important, your teeth, looking their best.

Your trusty manual toothbrush has been with you from pre-school through high school—well, obviously not the same manual toothbrush, because that would be seriously unhygienic—but it’s the kind of toothbrush you’re used to and comfortable with.

Now, though, you’re off to college, and your lifestyle will be changing. Late night study sessions complete with study session snacks. Getting caught up in a project and making dinner from dorm vending machines. Grabbing fast food on the way to the practice field, or work-study job, or evening class. You get the point—meals can be hectic, unscheduled, and less than tooth friendly.

And if you’re wearing braces or aligners, you know you need to keep on top of brushing more than ever. It’s challenging to brush away cavity-causing plaque when it sticks around brackets and wires. And with aligners, teeth don’t benefit as much from the constant cleansing action of saliva, so it’s really important to brush away plaque and food particles before you replace the aligners after eating.

Maybe it’s time to consider an electric toothbrush. After all, anything that can make your life easier and more efficient during busy college days deserves a spot in your dorm room.

• Electric Brushes Are Effective

The most important reason to switch to an electric toothbrush is its effectiveness. Several studies have shown that regular use of an electric toothbrush leads to a marked reduction in plaque, that bacteria-filled film which sticks to the teeth and leads to cavities and gingivitis. And it’s really no surprise that an electric brush can out-perform a manual brush.

Electric toothbrushes offer several design options, from oscillating/rotating brushes to oscillating/rotating/pulsating models to brushes using sonic vibration technology. What these technologies all have in common is the ability to remove plaque far more efficiently than we can on our own, because electric brushes provide the equivalent of thousands and even tens of thousands of brushstrokes per minute, compared to the hundreds we can achieve by hand.

There might be a bit of a learning curve to discover how to use your brush around wires and brackets. Ask us for the best method of using an electric brush with your braces, and check out brush heads specifically designed for orthodontic work.

If you use buttons with aligners, electric toothbrushes should be safe to gently clean around the buttons to remove built-up plaque. It’s usually best to stick with a manual brush for cleaning your aligners themselves—we’re happy to give you your best cleaning options, no matter which brush you choose.

You know by now what your brushing habits are like. If you tend to be a bit cavalier with your brushing and flossing, make sure you set yourself up for success. Because you have better things to do during semester breaks and summer vacations than visiting Dr. Karen Seder!

• Electric Brushes Can Make Life Easier

Several of today’s electric brushes come with options designed to do more than simply remove plaque. They can let you know if you’ve brushed for the recommended two minutes and remind you when it’s time to replace the brush head. They can even alert you if you’re brushing too hard, which is especially important when you’re wearing braces.

Want more from your electric brush? Some models offer apps that can map out just where you’ve brushed, in case there are a few spots that often get overlooked. Or provide different brushing modes for daily cleaning, deep cleaning, whitening, and more. Or come with a travel case that can recharge while you’re busy exploring the world—or going home for a visit.

In the end, it’s up to you. Do some independent study and research the toothbrushes that will give you the best results for your individual brushing habits. You might not need or want a brush with all the technological bells and whistles.

If you’re comfortable with your manual brush and you get good grades when you visit our Chicago, IL office, stick with it. But if you think you might benefit from the ease and efficiency of an electric toothbrush, if an electric toothbrush makes your teeth and gums healthier and your smile brighter, that’s extra credit worth pursuing.