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It is common to experience dentine hypersensitivity, with symptoms ranging from moderate to severe. Why does it happen and how do you know if this sensitivity is something to be concerned about? The first step is to determine the cause.

The most common cause of the sensitivity is exposure of the dentin. Dentin is the layer immediately surrounding the nerve of the tooth. It is alive and usually covered by the gum tissue. When gum recession is present hypersensitivity is common. Other contributors to temporary tooth hypersensitivity include teeth whitening and dental procedures such as fillings, periodontal treatment, and braces placement or adjustment. These are temporary and should be of no concern.

Permanent hypersensitivity, however, may require treatment. To understand the cause of sustained hypersensitivity, let us explain the structure of dentin and why it serves as a ‘hot spot’.

The dentin contains a large numbers of pores or tubes that run from the outside of the tooth to the nerve in the center. When dentin tubes are exposed, there is a direct connection between the mouth and dental pulp, which houses the nerve and blood supply of the tooth. External stimuli, such as mechanical pressure (tooth grinding or clenching - bruising the ligaments holding the teeth in place), temperature changes, as well as chemical stimuli (sweet–sour) are transmitted to the pain-sensitive dental pulp and activate nerve endings. A short and sharp pain is the result. These external stimuli cause fluid movement in the open tube that is transmitted as pain sensations. Something needs to be placed into the dentin tube to plug it and stop this fluid movement.

The first step in doing something about dental hypersensitivity is to determine the cause; our professional team at Comfort Smiles can help you with this. Whether the sensitivity is due to exposed dentin or an underlying cause such as abscess or decay, corrective measures are needed. Contact us sooner rather than later so Dr. Welmilya Francis-Davis can reduce the sensitivity, and provide you with some relief!

Periodontal health — which refers to the condition of the structures that support your teeth — is an important part of your oral and overall health. However, periodontal health becomes even more important when you're pregnant. Bad oral health can have detrimental effects on the health of your unborn child and can lead to low-birth weight babies and giving birth to a pre-term baby, according to reports by the American Academy of Periodontology (AAP), the European Federation of Periodontology (EFP), and several research studies.

Periodontal disease (gum disease) is a set of chronic, bacteria-induced, inflammatory diseases that attack the gum tissue and in more severe cases, the bones supporting the teeth. Early signs of periodontal disease usually include tenderness, swelling, and redness. Symptoms can also include bleeding gums when flossing or brushing, receding gums, loose teeth, and bad breath. These signs shouldn't be ignored, especially if you're pregnant.

Prevention is the best tool you have to fight periodontal disease. Here are some steps you can take to keep your gums in tiptop shape:

• Brush your teeth properly twice a day – angle your toothbrush at the gum line to help disrupt the bacterial growth that eventually leads to periodontal disease, and make sure you don't brush too hard.
• Floss daily and clean behind the back molars on the top and bottom of your mouth.
• Use antiseptic mouthwash to rid your mouth of the bacteria that can cause gum disease.
• Get regular checkups at our Nassau office to ensure you have no signs of periodontal disease and that your oral hygiene habits are effective.

Dr. Welmilya Francis-Davis and our team urge women to care for their periodontal health during pregnancy to avoid complications. If you have any questions regarding periodontal health and how it affects you and your baby's overall health, please contact our Nassau office for more information.

Let’s talk about the science of our teeth for a moment. Our enamel has a very high mineral content, making it extremely strong.  In fact, enamel just happens to be the hardest substance in our bodies.  But, unfortunately, it is not indestructible! Certain foods we eat can actually damage the surface of our teeth. Some simple and entertaining experiments can show children how our teeth can be affected by things we eat and drink, and how we can help protect them.

If you have a science-minded student at home, there are many activities you can do together, using educational websites, common household products and lots and lots of eggs. (Why eggs? Eggshells are a great substitute for teeth in these experiments. Not only are they various shades of white--like our own teeth, they are also calcium-rich—like our own teeth.) You can find any number of experiments using uncooked eggs, hardboiled eggs, whole shells with the contents blown out, or eggshells alone, so you can find just the right activity for whichever egg treatment works best for you.

Examine Enamel Erosion

One of the ways we protect our teeth is with healthy eating. The bacteria in plaque use the sugars and starches in our foods to produce acids. These acids are the substances that break down the minerals in our enamel and leave the enamel weaker. Weaker enamel is more easily attacked by bacteria and acids, which leads to cavities.

With eggs or eggshells and some carefully selected food products, you can see just how acidity affects teeth. Different websites suggest a variety of acidic liquids to dunk your eggs in, such as vinegar, soda, or citrus juices, so it’s easy to find an experiment that works with your pantry. Always use a plain water sample when you submerge eggs or shells to act as a control to measure differences against. How do the egg shells soaked in acidic liquids differ from those in plain water? It’s also fun to add simple sugar water as a test liquid to see what happens. Is it sugar or acid that causes more damage? And why might that be?

The Fluoride Fix

Fluoride is well known as a mineral that protects the structure of our teeth and helps prevent cavities. And there are actually experiments out there to test the protection fluoride provides using your egg stand-ins.

In some experiments, a hardboiled egg is coated with fluoride toothpaste or rinse for a specific amount of time and then dunked into vinegar. An untreated egg also gets a vinegar bath. You are asked to observe what is happening to each egg as it sits in its vinegar bath—are there bubbles on one egg and not the other? What do the bubbles mean? Other experiments require longer exposure to fluoride and then to vinegar—what happens to the shells of the treated and untreated eggs? What could this mean for our teeth?

Staining Studies

Our diet can do more than help create cavities. Enamel is very strong, but it is not stain-proof! Dark colored foods and drinks can make our teeth appear darker or more yellow. (And teeth that have suffered enamel erosion can pick up stains more easily.) How does food affect the brightness of our smiles?

If this question interests you, find experiments that use favorite beverages as a soak for your eggs. Choose liquids with a range of color, such as coffee, soda, and apple juice. Or choose an experiment that uses different varieties of soft drinks. Will foods the same color cause the same amount of discoloration in your egg volunteers? Do you want shorter or longer soaks in each liquid? Do you want to make use of a recycled toothbrush to see if brushing that discolored shell makes a difference? With toothpaste or without?

Even though these activities are designed for older children, they still require adult supervision. You can find detailed instructions for any of these experiments at many science and educational sites online. With some household supplies, plenty of extra cups, and a quantity of eggs, you and your child can demonstrate some of the basic effects our food choices have on the health and appearance of our teeth. It’s a wonderful way to promote healthy eating and brushing habits, scientific curiosity, and shared experiences!

Don’t forget to let Dr. Welmilya Francis-Davis know how your experiments turned out the next time you visit our Nassau office!

The electronic toothbrush has undergone several technological advances since the 1960s. Everything from design and bristle motions to rotation, oscillation, and sonic vibration has led to dramatic changes in this necessary tool over time.

Rotation oscillation happens when the head of the toothbrush rotates from one direction to the other. The benefit of powered toothbrushes is that they can produce 50,000 strokes per minute, compared to 300 strokes with a manual toothbrush.

When you’re thinking about brush head size, smaller brush heads are best for hard-to-reach areas and small mouths. Brush heads should be replaced every three to six months as needed. A good way to save money is to designate a brush head for each family member which can be taken on and off a shared base motor.

Having a base motor or rechargeable toothbrush can deliver enough power on a full charge for a week of brushing, which makes it convenient for travel or when life gets busy. Some toothbrushes include audible signals that let you know when to switch the area of your mouth you’re brushing or when a full two minutes has gone by.

Do you have sensitive teeth? Studies have indicated that people tend to apply more pressure on their teeth when they use a manual toothbrush. This makes an electric toothbrush a preferable option if you’re having issues with sensitive teeth or gums.

There are even electric models with pressure sensors that will stop the brush from spinning when you press too hard against your teeth!

Everyone can benefit from having an electric toothbrush. A large handle size can be taken into consideration if a member of the household is young, or has a physical disability or arthritis. They’re even recommended for children in order to maintain good oral hygiene from a young age.

Biofilm is a term used for plaque or debris that builds up in your mouth. If not properly addressed, this can cause serious bacterial infections to your gums and teeth. If you want to remove biofilm in the most efficient way, an automatic toothbrush is the way to go.

When you're ready to make your decision, make sure to consult with Dr. Welmilya Francis-Davis at our Nassau office to decide which electric toothbrush is right for you!