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Can Toothpaste Repair Tooth Decay?

July 16th, 2026

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. 

Talk to Dr. Keith J. Fabre Jr. at our Marrero office about which toothpastes can help restore a healthy balance between the ongoing cycles of demineralization and remineralization. While tooth-repair toothpaste can’t fix cavities, these products can often strengthen demineralized enamel and reverse this earliest stage of tooth decay.

Toothpaste Guide

July 9th, 2026

Between the huge number of toothpaste brands on the market today, the different flavors, and claims from most to do different things, it isn’t surprising that people feel so confused when it comes to something that should be as simple as buying a tube of toothpaste. This guide will help you identify the common ingredients in toothpaste, and help you understand the important factors to consider before buying toothpaste again.

Toothpaste comes in gel, paste, and powdered forms. When it comes to the type of toothpaste, the choice is more a matter of preference.

Basic Ingredients

  • Abrasive Agents – Abrasive agents are the scratchy substances added to toothpastes to help in the removal of food particles, bacteria, and minor stains. Calcium carbonate is one of many abrasive materials, and arguably the most common.
  • Flavor – When toothpastes are flavored, they almost always have artificial sweeteners to enhance the flavor of the toothpaste and increase the likelihood that you’ll use it. Flavors run the gamut from traditional mint to cinnamon that may appeal to adults, and bubble gum or lemon lime – flavors to target children.
  • Humectants – Humectants are moisturizing agents that keep paste and gel toothpastes from drying out. Glycerol is commonly used as a humectant.
  • Thickeners – Thickeners are used to give toothpaste its distinctive consistency, and to make it maintain a uniform consistency and come out of the tube easily.
  • Detergents – Sodium lauryl sulfate is the most common detergent used in products that foam up, like toothpaste does in your mouth.

What to Look For in Toothpaste

Fluoride is naturally occurring mineral. It is the most important ingredient to look for in a toothpaste. Although there are people who argue against using fluoride toothpaste, dental professionals like Dr. Keith J. Fabre Jr. emphasize that the fact that the incidence of tooth decay has decreased so significantly in the past 50 years is because of fluoridated toothpaste.

The suggestion that fluoridated water gives you enough fluoride to protect your teeth is wrong. Fluoride toothpaste is the best cavity protection there is. In addition to strengthening tooth enamel and protecting teeth from acid erosion (from acidic foods and drinks,) it remineralizes the surfaces of teeth that are suffering from early acid damage and may prevent developing tooth decay from worsening.

Tartar Control

Tartar is the result of hardened plaque buildup on the teeth. Good oral hygiene and in between twice yearly cleanings from a dental hygienist are the best defense against plaque buildup. Plaque turns to tartar when people neglect their oral hygiene. Over time, tartar can build up on teeth and under the gums, increasing the risk of gum disease.

Your best bet is to use a toothpaste that has a combination of anti-plaque agents. Products containing more than one plaque reducer may be more effective than products that only one. Common ingredients to look for are zinc citrate or pyrophosphates. Triclosan is an antibiotic that is believed to kill bacteria in the mouth, and it can be found in some anti-plaque toothpaste.

Look for toothpaste that bears the seal of the American Dental Association. That seal is an endorsement of the ADA – and it means that many dentists agree that that particular toothpaste does what toothpaste is designed to do. We can also recommend toothpaste to meet your specific oral health concerns at your next visit to our Marrero office.

How to Celebrate National Junk Food Day

July 2nd, 2026

We mark special times throughout the year to encourage better oral health, like Dental Hygiene Month, and Children’s Dental Health Month, and even National Root Canal Day! This July 21st is National Junk Food Day, and we couldn’t let it pass without some healthy ideas to help you make the best of this not-so-dentally-healthy day.

What makes junk food unhealthy? Most of the foods in this category have high levels of sugars, starches, salts, or fats, which aren’t good for your body in large quantities. When it comes to your dental health in particular, some junk foods are worse than others because they are actively destructive to your tooth enamel.

Foods like candy, cookies, doughnuts, chips, energy drinks, sports drinks, and sodas can have large amounts of sugar, starch, and acid. And a diet filled with sugars, starches, and acids puts your tooth enamel under constant attack. 

The bacteria in plaque make acids from the sugars and starches (which break down into sugars) in our diets. These acids then erode the mineral crystals which give our enamel its strength, leaving weak spots which can deepen and become cavities. A steady diet of sweet and starchy foods for you creates a steady diet of sugar for cavity-causing bacteria. 

Just like the acids produced by bacteria can erode tooth enamel, acids in food can also strip away the minerals which keep your enamel strong. Sodas, sports drinks, energy drinks, and many fruit juices are often both sugary and highly acidic, making them very damaging to tooth enamel.

So, let’s spend a few moments today to discuss how you can enjoy a bit of junk food every now and then and still take good care of your teeth.

  • Limit Sugars, Starches, and Acids

We don’t just mean limiting the number of treats you eat in a day. It’s also a good idea to limit treats to certain times as well. Eat desserts with meals, when saliva production is higher, to help wash away sugary and starchy food particles. Acidic drinks, when sipped throughout the day, are like bathing your teeth in acids. Better to drink a soda or sports drink in one sitting and drink or rinse with water after! 

  • Brush after Eating Sticky Sugary and Starchy Foods

Sticky foods filled with sugars and starches are double jeopardy for your tooth enamel. Not only are they the foods of choice for plaque bacteria, they also tend to stick to your enamel and between your teeth, giving cavity-causing bacteria more time to work. An after-treat brushing will get rid of any sugary or starchy leftovers as well as removing built up plaque.

  • —But Don’t Brush Too Soon After Acidic Foods and Drinks

When you eat or drink something acidic, your enamel is more vulnerable to damage immediately afterward because acids remove minerals from tooth enamel. If you brush right away, even soft bristles can be abrasive. Wait about 60 minutes to brush, which gives your tooth surface time to get strong again with the enamel-building minerals found in saliva. 

  • Make Water Part of Your Healthy Diet

Easy, available, inexpensive—what’s not to like about water? Oh, and it’s also healthy for your teeth! Rinsing with water after a treat helps remove lingering food particles and acids. And drinking water when you’re thirsty helps you produce saliva. Saliva not only rinses our teeth, it helps neutralize acids and helps replace calcium and phosphate minerals which may have been stripped away by acids.

This July 21st, we’re not really celebrating junk food—we’re celebrating all the things you do to protect your oral health. So, whether you’re indulging today or not, keep your teeth their healthiest by making junk food a rare treat, keeping up with your daily brushing and flossing, and seeing your dentist regularly for checkups and cleanings. Let’s make National Junk Food Day just another day in a year filled with healthy smiles!

The Purpose of a Dental Crown

June 25th, 2026

A dental crown, otherwise known as a cap, covers an infected tooth and can vary in function, depending on the position of the tooth. Crowns cover all the visible parts of a tooth and vary in size, appearance, and functionality.

A crown can be used to protect a weak tooth from breaking, hold together an already broken or worn tooth, cover the tooth with a large filling or dental implant, hold a dental bridge in place, or support a cosmetic modification.

Several types of crowns are available, depending on the tooth to be treated. Stainless-steel crowns are used on permanent teeth, usually as temporary measures in children because they’re more cost-effective for baby teeth that naturally come out over time.

Metal crowns are another option that includes gold alloys, or base-metal alloys. Metal crowns are notable for their ability to withstand biting forces, rarely break or chip, and therefore offer the best results in terms of normal wear and tear.

Porcelain fused to metal crowns most closely resemble a normal tooth and are a good choice for front or back teeth. Other, less common types include all-resin, all-ceramic, all-porcelain, and zirconia crowns.

If you’re getting a crown, you can expect a few things during your visit with Dr. Keith J. Fabre Jr.. Crown placement usually requires two appointments. The first entails preparation to get an impression of the tooth, shape it, and place a temporary crown. The impression is sent to a lab where a technician makes the crown to be fitted.

During the second appointment, the high-quality porcelain crown is placed on the problematic tooth.  

If you notice any signs of discomfort in your mouth, always let Dr. Keith J. Fabre Jr. know by calling our Marrero office. We will determine which type of crown is best for your tooth to give it the added strength it needs. Crowns can be very helpful for your oral health if you have any teeth that need extra support.