If you were to put your toothbrush bristles under a high-powered microscope, what you would see might give you nightmares: millions of bacteria, busily crawling up and down your toothbrush bristles, consuming proteins that came from your mouth, and still clinging to the bristles even after you’ve rinsed them with water.

Rinsing your toothbrush after brushing removes some of those ferociously hungry bacteria, but not all. The American Dental Association says that bacterial infestations develop on toothbrushes within a month of daily use. The ADA also states that unless a toothbrush is sterilized before being packaged, it’s going to come with bacteria – free of charge!

Germs and Frayed Bristles: the Demise of a Toothbrush

Drs. Cartsos and Zavras and our staff recommend that you toss your old toothbrush in the trash and purchase a new one every three months. Children tend to bite on their toothbrushes, which makes the bristles degrade and fray faster. Chances are kids may need to have their toothbrushes changed more frequently.

Where do they hide?

Bacteria are tenacious little germs that head for those concealed areas between toothbrush bristles. They are highly adaptable and exist in every type of extreme environment. Some people actually go so far as to put their toothbrush in a microwave for a few seconds to kill germs, but this doesn't always work either. In fact, you may only end up with a toothbrush that’s as bendable as a Gumby doll – and still covered with germs.

Feed a Cold, Starve a Fever, and Get Rid of Your Toothbrush

When you have a head cold, your mouth is teeming with bacteria gleefully roaming around, and gobbling mucus and dead skin cells. If you brush your teeth while suffering a sinus condition, the brush will act like a magnet for ravenous bacteria. Use your old toothbrush while you are sick, but as soon as you feel better, throw it away and get a new one. Otherwise you could possibly re-infect yourself with the same cold germs!

It seems like the ads are everywhere these days—repair your enamel and reverse tooth decay with a tube of toothpaste! Are these claims too good to be true? Let’s dive into the science of tooth decay—how decay develops and how (and if!) it can be reversed.

Teeth can stand up to the powerful pressures of biting and chewing because over 95% of our enamel is made up of minerals. Calcium and phosphate ions in our teeth bond to form a crystal structure called hydroxyapatite. Because of the strength of this crystalline design, tooth enamel is the hardest substance in our bodies, even stronger than our bones. 

But bones, like most other parts of our bodies, are living tissue, which means that they can create new cells to replace old or damaged cells. Tooth enamel can’t regenerate new cells to repair itself. This means that when a cavity has made a hole in the tooth, the enamel can’t grow back. And, while enamel structure is very strong, it’s also vulnerable to damage—specifically, damage from acids. 

Our teeth are exposed to acids throughout the day, whether they are acids created by plaque bacteria or the acidic foods and drinks we consume. Acids dissolve mineral bonds, stripping calcium and phosphate minerals from the enamel and leaving weak spots in the tooth surface. This process is called demineralization. Demineralization is the first stage of tooth decay.

The good news? Our bodies are designed with a built-in defense mechanism to prevent demineralization from causing lasting damage. All through the day, saliva helps wash away acids in the mouth and bathes our teeth with new calcium and phosphate ions. These ions bond with the calcium and phosphate in our enamel, restoring enamel strength. This protective repair process is called remineralization. 

Now for the bad news. In the tug of war between demineralization and remineralization, saliva can only do so much. If your diet is heavy with acids, if you don’t brush away acid-producing plaque bacteria regularly, if you eat a lot of the sugars and starches which feed plaque bacteria, the remineralizing effects of saliva can’t keep up with the demineralizing effects of acids.

The first visible sign of demineralization is often a white spot on the tooth where minerals have been stripped from enamel. Studies have shown that enamel-strengthening toothpaste can be effective in this very first stage of tooth decay. Toothpastes which advertise enamel repair generally contain one or more of these ingredients:

• Calcium Phosphate
• Hydroxyapatite
• Fluoride 

Toothpastes with calcium phosphate or hydroxyapatite contain calcium and phosphate minerals, the building blocks of tooth enamel. Studies have suggested that these minerals can replace the calcium and phosphate ions stripped from enamel. These toothpastes may or may not contain fluoride, which is something you should discuss with your dentist before deciding on a specific toothpaste.

Fluoride toothpastes remineralize enamel—and more! Fluoride ions are attracted to the tooth’s surface, and, when fluoride ions join with the calcium and phosphate ions there, they form fluorapatite. Fluorapatite crystals are larger, stronger, and more resistant to acids than hydroxyapatite crystals. And, once bonded with tooth enamel, fluoride attracts the calcium and phosphate ions in saliva to remineralize the teeth more quickly. 

Why consider enamel-repair toothpaste? 

Once enamel is gone, it’s gone for good. If excess demineralization isn’t treated, a weak spot on the tooth surface will continue to erode, growing bigger and deeper until it becomes a hole in the enamel. This is a cavity, and your dentist will need to treat and repair your tooth to prevent the cavity from growing and potentially exposing the tooth’s pulp to bacteria and infection. 

If you wear braces, you want to be especially careful about excess demineralization. Because it can be hard to brush and floss effectively with braces, white spots and discolored patches are a common concern for those with braces, especially on the enamel around brackets.  

Talk to Drs. Cartsos and Zavras at our Chestnut Hill, Massachusetts office about which toothpastes can help restore a healthy balance between the ongoing cycles of demineralization and remineralization when you have braces. While tooth-repair toothpaste can’t fix cavities, these products can often strengthen demineralized enamel and reverse this earliest stage of tooth decay.

Taking care of your oral health involves a daily regimen of brushing, flossing, and rinsing to prevent tooth decay and bacterial infections. Though you may have asked us which toothbrush to use, few patients at Convivial Dental ask about mouthwash.

However, different mouthwashes you might choose will have varying effects on your oral health. So which type is best for you?

Gum Health

Antiseptic mouthwashes are designed to reduce the majority of bacteria on and near the gum line. Using an antiseptic mouthwash can help decrease your chances of developing gingivitis. If possible, look for a mouthwash with antibacterial or antimicrobial ingredients.

Fluoride

Fluoride is beneficial for oral health and can help prevent tooth decay. If you drink a lot of bottled water without fluoride, we may recommend that you purchase a rinse with fluoride in it.

Bad Breath

Although mouthwash is designed to prevent bacterial build-up within the mouth, many people use it to combat bad breath. Most mouthwashes will help eliminate the bacteria that cause bad breath, and some are specifically designed to do so.

However, if bad breath is a chronic problem that requires daily treatment with a mouth rinse, contact Convivial Dental to discuss your symptoms.

American Dental Association Approval

The ADA reviews mouth rinses for safety and effectiveness. A mouthwash with the ADA Seal of Approval will meet strict criteria, and will have scientific evidence or clinical studies that support the claims of the manufacturer. If possible, select a mouthwash that bears the ADA Seal of Approval to ensure you are using a quality rinse.

Considerations

If you are unsure as to which mouthwash is right for you, contact our Chestnut Hill, Massachusetts office or ask Drs. Cartsos and Zavras during your next visit. Also, be sure to keep mouthwash out of the reach of children, as it contains alcohol and other substances that could be harmful to them. Avoid letting children under age six use a mouth rinse, and discontinue use if you experience a burning sensation in the soft tissues of your mouth.

If you’re brushing your teeth twice a day during your orthodontic treatment, Drs. Cartsos and Zavras and our team think that’s wonderful! But, don’t forget that it’s also important for you to visit your general dentist every six months, or as recommended, in addition to brushing your teeth and flossing. (And visiting Convivial Dental for regular adjustments, of course.)

Dental checkups are crucial for maintaining good oral health. Your general dentist can check for problems that might not be seen or felt, detect cavities and early signs of tooth decay, as well as catch and treat oral health problems early. During an oral exam, your dentist can also check the health of your mouth, teeth, gums, cheeks, and tongue. Checkups will also include a thorough teeth cleaning and polishing.

If you have not been to the dentist in the last six months, let us know during your next adjustment visit and we will provide a few great references in the Chestnut Hill, Massachusetts area!