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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 Dr. Joel Martinez, Dr. Christopher Martinez, and Dr. Vanessa Martinez at our McAllen 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.

Many people who are careful about brushing and flossing their teeth wonder how they still end up with cavities or tooth decay. Several factors affect wear and tear on tooth enamel. Diet is a major factor, with certain foods increasing the likelihood that your enamel will become discolored or decayed. Pay close attention to the foods you eat to keep your pearly whites looking healthy and clean.

What causes enamel damage?

Tooth enamel refers to the hard, semi-translucent, whitish part of the tooth that shows above your gums. The enamel is primarily composed of minerals that are strong but susceptible to highly acidic foods. When acid reacts with the minerals in enamel, it results in tooth decay. Strongly pigmented foods can also damage enamel by discoloring the surface of the tooth.

Foods that harm enamel

Acidic foods are the greatest source of enamel damage. To determine whether a food is acidic, look up its pH. Scientists use pH, on a one-to-seven scale, to define the relative acidity or alkalinity of a substance. Foods with low pH levels, between a one and three, are high in acidity and may damage your enamel. Foods with high pH levels, such as a six or seven, are far less likely to cause enamel harm.

So which foods should you avoid? Many fruits are high in acidity, including lemons, grapefruit, strawberries, grapes, and apples. The high sugar and acid content in soda makes it another huge contributor to enamel decay. Moderately acidic foods include pineapple, oranges, tomatoes, cottage cheese, maple syrup, yogurt, raisins, pickles, and honey. The foods that are least likely to cause enamel damage include milk, most cheeses, eggs, and water.

Beverages such as red wine and coffee also damage the enamel by discoloring it. Although stains do not necessarily undermine the integrity of your teeth, they can be unsightly.

What can I do to prevent enamel damage?

Fortunately, there are several measures you can take to prevent your enamel from discoloring or decaying. The easiest way to avoid decay is to steer clear of high-acidity foods. This may not always be possible, but eliminating sugary fruit juices and soda from your diet is a good start. Brushing your teeth after each meal and flossing frequently also preserves your enamel. Another good idea is to rinse your mouth with water or mouthwash after eating to wash away high-acidity particles.

Although enamel damage is common, it does not have to be an inevitable occurrence. Knowing the foods that harm your teeth gives you the tools to prevent discoloration and decay. With some easy preventive measures, your teeth will stay strong and white for years to come! Give us a call at Joel Martinez, DDS to learn more!

It may come as a surprise to learn that dogs, like humans, have both baby and adult teeth. Most dogs, unlike humans, have all of their adult teeth by the time they are seven months old, so it’s time to start looking after their dental health when they are still puppies.

While dogs generally don’t develop cavities, periodontal disease is the one of the most common diseases affecting dogs. Periodontal disease starts when the bacteria in your pet’s mouth form plaque. The plaque can harden into tartar, and, if plaque and tartar spread under the gum line, can be responsible for a number of serious problems. Veterinarians warn that tooth loss, tissue damage, bone loss and infection can be the result of periodontal disease. Professional dental treatment is important if your dog is suffering from periodontal disease, and your vet can describe the options available to you. But the time to act is before disease develops. Let’s bone up on some preventative care!

Brushing

There are brushes and toothpastes designed especially for your dog. Train your puppy from an early age to open his mouth to allow you to examine his teeth and gums. (This will also come in handy if you ever need to give him medicine.) Most dogs will accept brushing, and toothpastes come in dog-friendly flavors. Human toothpaste should never be used because it contains cleaners and abrasives that should not be swallowed by your pet. There are also dental wipes available that can be used once and thrown away. Your vet can advise you how to ease your pet into a brushing routine.

Gels and Rinses

Whether you rub an antiseptic gel on your dog’s teeth or squirt an antiseptic rinse into his mouth, these formulas can reduce the build-up of plaque. Not all dogs take to the taste of these solutions, but in general they are safe and effective. Ask your vet for recommendations if you would like to try this method.

Diet

Several dietary products offer anti-plaque ingredients or a kibble shape designed to reduce the formation of plaque. Talk to your vet for the best possible diet and nutrition suggestions for your unique pet.

Chew Toys

Chewing can help reduce plaque build-up if done consistently, and chew toys should be chosen for tooth and digestive safety. Some animal-based products and hard plastic toys are so rigid that they can cause damage to teeth or gums, so be sure to look for safe toys.  Dogs shouldn’t be left alone with toys due to choking or swallowing hazards—if the chew toy becomes small enough to cause choking, or your dog is swallowing large chunks that might not be digestible, time to replace it.

Your veterinarian is the best resource for maintaining your dog’s health and developing a dental routine both you and your pet can live with. When your four-legged friend goes for his next check-up, ask your vet what you can do to keep him and his smile fetching for a long, long time.

As more people turn to bottled water and away from the tap, they may be missing out on one important ingredient that most brands of bottled water fail to include: fluoride! Because fluoride helps strengthen teeth, it is an important component of maintaining good oral health. Our friends at the American Dental Association have endorsed both community water fluoridation and the use of fluoride-containing products as a safe means of preventing tooth decay.

In fact, the Centers for Disease Control and Prevention has also warned that “bottled water may not have a sufficient amount of fluoride, which is important for preventing tooth decay and promoting oral health.” If you are avoiding fluoridated tap water in favor of ever-more-popular bottled water, you could be missing out on the levels of fluoride necessary to make a difference in your oral health. One 2012 study in the Journal of Pediatric Dentistry found that more than 65 percent of parents using bottled water did not know what levels of fluoride it contained.

If bottled water happens to be your or your children’s beverage of choice, check the label to make sure your brand contains fluoride. Of course, simply drinking fluoridated water is not a magic ticket to perfect teeth. To keep your pearly whites in tip-top shape, it’s important to brush and floss daily and avoid sugary sweets, in addition to maintaining your fluoride intake.

Questions about fluoride? Give us a call at our convenient McAllen office! We look forward to hearing from you!