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Psst—here’s some time sensitive information just for you. If your teeth are sensitive to heat, cold, sweets, acidic foods, wind and/or air, it could mean it’s time to see Dr. James Robson!

Normally, we don’t notice how external conditions affect our teeth at all. Tooth enamel—the hardest substance in the body—protects the inner tooth from outside stimuli. So, why do strong, solid teeth suddenly feel sensitive? The answer’s found in tooth anatomy.

The crown of the tooth, the part we can see above the gum line, has three distinct layers.

• Enamel, a strong mineral-rich coating, surrounds the outside of each tooth and protects the dentin and pulp inside.
• Dentin is the softer, porous middle layer of the tooth. Dentin contains thousands of tiny, fluid-filled tubules which extend to the pulp.
• In the center of each tooth is the pulp chamber, filled with nerves, blood vessels and connective tissue which keep the tooth alive and healthy.

The roots below the gumline have a similar structure, with one important exception.

• Cementum, which is not as hard and strong as enamel, covers the root surface instead of enamel.

Healthy, undamaged teeth allow you to enjoy an icy beverage, a hot latte, a sweet treat, or a brisk walk without any dental discomfort.

When the tooth’s protective enamel covering is worn or damaged, the dentin below the enamel is exposed to external conditions. Temperature changes, air, wind, sweets and acids—all the stimuli which normally have no effect on our teeth are now transmitted through the dentin’s tubules to the nerves inside the pulp.

The pulp’s nerves respond to these sensations by sending out pain signals. The uncomfortable tooth sensitivity which results is often described as an annoying twinge, a sharp, brief stabbing pain, or a shocking sensation.

There are several potential causes of dentin exposure, including:

Aggressive Brushing

Brushing is great! Over-aggressive brushing? Not so much. Heavy-handed brushing can wear down mineral-rich tooth enamel and is even more damaging to less-mineral-rich cementum.

Dental Products

Some mouthwashes, rinses, and whitening treatments containing alcohol or bleaching agents can cause temporary sensitivity, especially when there’s exposed dentin.

Cavities and Damaged Restorations

The bacteria in plaque create acids which strip minerals from tooth enamel. Over time, a hole in the enamel develops, uncovering the sensitive dentin below. Similarly, when fillings or crowns loosen or suffer damage, the dentin surface underneath is exposed to air and temperature changes.

Injuries

A crack or fracture can expose dentin, or, in severe cases, tooth pulp, to foods, heat, cold, and air.

Diet

An acidic or sugary environment in the mouth harms enamel. Consuming acidic foods and beverages erodes the minerals which make enamel so strong. Sugars give plaque bacteria the perfect fuel for producing their enamel-eroding acids.

Tooth Grinding

Bruxism, or tooth grinding, often takes place during sleep, and can apply over a hundred pounds of pressure to the teeth and jaws. Continuous grinding and clenching wears away tooth enamel, exposing dentin. Bruxism can also cause chipped and cracked teeth, as well as jaw damage and even tooth loss.

Malocclusion

Occlusion refers to the way our teeth and jaws fit together. In a healthy occlusion, the forces of biting and chewing are normal and evenly distributed. A malocclusion, or bad bite, can cause excessive or uneven pressure on teeth and jaws, leading to worn enamel, cracked teeth, and more serious bite problems.

Gum Disease

Gum disease can cause the gums to pull away from the teeth. This gum recession exposes the tooth’s root, which is covered with softer cementum, making it more vulnerable to sensitivity and decay.

Just as there are many causes for tooth sensitivity, your dental team at Robson Dentistry has many solutions to restore your comfortable, healthy smile.

Choose the Right Products to Protect Your Smile

• If you’re not using a soft-bristled brush, trade in your old model ASAP, or try an electric toothbrush.
• There are special toothpastes which are formulated to reduce sensitivity.
• Talk to your dentist or hygienist at Robson Dentistry to learn the best ways to brush and the best products to use to protect your dental health and your tooth enamel.
• Ask your dental team to recommend less acidic mouthwashes and whiteners designed for more sensitive teeth.

See Your Dentist Regularly

• Regular exams will reveal any cavities before they become deeper and more damaging.
• Dr. James Robson can set broken restorations to rights by creating a new filling or crown.
• If you suspect you have an injured tooth, call our practice immediately to prevent more serious damage or infection.

Eat a Dental-Healthy Diet

• Cut down on acidic and sugary foods.
• Check ingredients. The amount of acids and sugars in foods like sodas and sports drinks could surprise you!
• If you do eat something acidic, don’t brush right away—rinse with water and wait an hour to give your enamel time to strengthen and remineralize.

Protect Your Smile from Trauma

• A custom-fitted nightguard can prevent enamel erosion and other damage caused by bruxism.
• If you’re concerned about your bite, ask your dentist for an orthodontic referral.
• Wear a mouthguard when playing contact sports or activities to protect your teeth from injuries.

Guard Your Gum Health

• Regular exams and cleanings help prevent gum disease.
• Bonding and sealers can be used to cover and protect exposed root surfaces.
• Dr. James Robson might recommend periodontal treatments such as deep cleaning or gum grafting for more severe gum recession.

The first step in treating sensitivity is a visit to Robson Dentistry in East Lyme, CT to diagnose the source of your discomfort. Tooth sensitivity is time sensitive. Take care of small problems before they become serious ones, and you’ll help make sure your smile is something you’re not the least bit sensitive about!

You pay attention to what you eat. After all, your oral health depends on it. Without the necessary proteins, vitamins, and minerals in your diet, your teeth and gums will suffer. But did you know it’s a two-way street? Without healthy teeth and gums, your digestive system can suffer as well.

Because digestion doesn’t start in your stomach—it starts in your mouth! Let’s take a quick look at how the digestive system operates.

• Teeth

The first step in digesting is breaking down foods so your body can extract their nutrients more easily. Healthy teeth are essential here. Incisors and canines tear food into smaller pieces while molars grind these pieces into an easy-to-swallow, paste-like consistency. While we chew, the surface area of the food increases, allowing the digestive enzymes in saliva, the stomach, and the small intestine to work more efficiently.

• Salivary Glands

Saliva production increases when we eat. Digestive enzymes in saliva begin breaking down carbs into sugars, and separating fat molecules. Saliva also contains antimicrobial peptides which are important for oral and gut health.  

• Esophagus

This muscular tube connects the back of the throat to the stomach. As we swallow, muscles in the esophagus contract and relax, an involuntary movement called peristalsis. These contractions push food down into the stomach. Peristalsis also occurs in the stomach and intestines, efficiently moving food through the rest of the digestive system. 

• Stomach

Inside the stomach are gastric acids and enzymes which break food down further to help the small intestine make use of these nutrients in the next stage of digestion.

• Small Intestine

This organ works to reap the benefits of our healthy diets. The small intestine absorbs about 95% of the nutrients from our digested food—carbohydrates, proteins, fat, vitamins, and minerals—and transfers these nutrients to the circulatory system to be used throughout the body. Any remaining food particles travel to the colon, or large intestine.

• Large Intestine

Bacteria in the large intestine help process soluble fiber, which we can’t digest on our own. The large intestine is also where insoluble fiber and anything else undigested are converted to solid waste. 

Digestion begins in the mouth, and, when dental problems make chewing and swallowing difficult, the entire digestive system can be affected:

• Uneven bite pressure

When you can’t apply chewing pressure because of decay, painful infections, or loose teeth, or when you are missing a tooth or teeth, it’s hard to chew food into the paste-like consistency necessary for rest of your system to process it smoothly.

• Reduction in digestive enzymes and peptides

Saliva contains enzymes which make food easier to digest and antimicrobial peptides which are important for gut health. Xerostomia, or dry mouth, causes less saliva production. Inadequate chewing does as well. Without sufficient saliva, your system won’t benefit from the digestive prep work and gut protection which saliva typically provides. 

• Uncomfortable swallowing

Insufficiently chewed food makes peristalsis in the throat and other digestive organs more difficult. Larger pieces of food can become stuck in the esophagus, causing painful swallowing or even choking. Dry mouth can also make swallowing very uncomfortable.

• Higher risk of stomach problems

When food isn’t chewed thoroughly, the stomach has to work harder, and the risk of gastroesophageal reflux increases. Highly acidic gastric juices can back up into the esophagus and mouth, causing heartburn, chest pain, sore throat, and vomiting. 

• Bowel irritation

When food particles are too large, the small intestine must work harder to break them down and to absorb their nutrients. Insufficiently digested food can upset the bacterial balance in the large intestine. These problems can cause indigestion, constipation, gas, and bloating.

• Changes in nutrition 

Dental problems can also lead to nutritional imbalances even before we start to digest. Soft foods and liquids are often chosen over proteins, fruits, and vegetables when loose or missing teeth or painful teeth make chewing difficult. While a soft diet is fine for a few days if your mouth is a bit sore following dental treatment, it can be difficult to get the all the nutrients your body needs when you only eat soft foods.

Dentists generally recommend a thorough examination twice a year to discover and treat any oral problems before they become more serious, but any tooth pain or sensitivity is a good reason to see Dr. James Robson immediately. 

Whether you have a cavity, an infection, gum disease (one of the major causes of loose or missing teeth), bite problems, dry mouth, or any other dental concerns, the team at Robson Dentistry in East Lyme, CT can help you discover solutions which will make eating and digesting your meals pain-free once again. Your healthy smile—and your healthy body—will thank you!

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. James Robson at our East Lyme, CT 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.

We get it. You’re working out and could use a boost. It’s 2 a.m. and that essay won’t write itself (darn it). You’re in the middle of a meeting that goes on and on and . . . 

It’s easy to reach for an energy drink when you’re feeling a bit low on, well, energy. These drinks are loaded with caffeine, and, like coffee or tea, can help you feel more alert. But before you pop that top, let’s look at how energy drinks affect your dental health.

• Energy drinks are very acidic.

Acid levels are measured using the pH scale, which ranges from 0 (most acidic) to 14 (most alkaline). Saliva has a normal pH somewhere between 6.2 and 7.6, which helps neutralize any acidic conditions in the mouth and promotes a healthy oral environment. But saliva’s neutralizing effect can be overwhelmed by highly acidic foods and drinks.

Why are higher levels of acids bad for our teeth? Acids strip away minerals like calcium from tooth enamel, the minerals which make enamel the strongest substance in the body. This demineralization weakens the enamel’s protective outer structure and can lead to enamel loss, sensitivity, tooth discoloration, and decay.

Many energy drinks are among the most acidic beverages on the market. Mineral loss in your enamel starts to occur when the pH balance in the mouth falls to 5.5 or less. Lemon juice has a pH between 2 and 3. White vinegar has a pH of 2.5. Energy drinks can range from 1.5 to 3.5 on the pH scale! Studies show that regular consumption of energy drinks greatly increases the risk and severity of dental erosion.

• Most energy drinks are full of sugar.

Sugar is easily metabolized, or broken down, by the body. When our bodies break down food, energy is released. That’s why companies add sugar as well as caffeine to their energy drinks. 

The plaque bacteria which create cavities also use sugars in these drinks as an energy source, converting sugars into acids. Just like acidic foods and drinks, bacterial acids break down the mineral structure in tooth enamel. You might notice small white spots when the enamel starts to erode—and a cavity starts to develop. 

• Energy drinks aren’t just bad for your dental health. 

The temporary burst of energy you get from all the sugar in energy drinks is followed by a sugar crash when blood sugar levels go down again, and you can feel tired, weak, or shaky. 

Even worse, one energy drink might contain three to four times the amount of caffeine found in a cup of coffee. Excess caffeine interferes with healthy sleep. It can cause changes in heart rate, blood pressure, and anxiety levels. 

Children and teens are especially vulnerable to the effects of large amounts of caffeine while their brains and bodies are still developing. That’s why the American Academy of Pediatrics recommend no energy drinks at all for children and teenagers. The FDA suggests that adults should not take in more than 400 milligrams per day of caffeine, while energy drinks can range from around 80 to 400 mg per can. 

If you do have the occasional energy drink, what’s the best way to protect your teeth and gums?

• Don’t linger over your drink. Sipping slowly over time just bathes your teeth and gums in sugar and acids over a longer period. 
• Drink water when you’re done. Water helps wash away sugars and acids, hydrates, and promotes healthy saliva production.
• If the team at Robson Dentistry gives gum a thumbs up, chew a piece of sugarless gum after downing an energy drink to increase saliva flow and help neutralize acids in the mouth. 
• Wait at least 30-60 minutes to brush after finishing an energy drink. Acids in the drink weaken enamel, and brushing immediately can be abrasive to the tooth surface.
• Eat a healthy diet rich in proteins, complex carbs, vitamins, and minerals to feel more energetic.
• Keep up with good dental hygiene. Brush twice each day for two minutes and floss daily, or more often as recommended by Dr. James Robson.

If you notice signs of enamel erosion—sensitivity, front teeth which are becoming transparent or rough around the edges, yellowish discoloration, or white or brown spots on your enamel—it’s time for a talk with Dr. James Robson. When caught early enough, treatment is available which can stop further erosion from harming your teeth.

The team at Robson Dentistry in East Lyme, CT, or your doctor, can help you discover healthy ways to stay focused and energetic. Your workout, your essay, your meeting, and, above all, your healthy body and healthy smile will thank you!