It is not uncommon to have one or more teeth that are particularly sensitive to heat, cold, or pressure. If you have such a tooth, you probably want to know what caused it and what you can do about it. Here are some frequently asked questions, and their answers.

What causes teeth to become sensitive?
The most common cause of sensitivity is exposure of the tooth's dentin, a layer of the tooth's structure that is just below the outer protective layer (the enamel).

The dentin is sensitive but the enamel layer is not. Why?
The enamel is composed of minerals that are hard and protective. It is not living tissue and has no nerve supply. The dentin layer underneath is bone-like living tissue that does contain nerve fibers. It is protected by enamel above the gum line and by gum tissue in the area of the tooth's root, below the gum line. If the tooth's protective covering is reduced, the nerve fibers in that section of the dentin are exposed to changes in temperature and pressure, which they conduct to the inner pulp layer (nerve) of the tooth. The sensations that reach the tooth's interior pulp layer cause pain.

What causes exposure of the dentin layer in teeth?
Often the dentin is exposed by receding gums, causing areas of the tooth that are normally below the gum surface to be uncovered.

What makes gums recede?
One cause of receding gums is excessive, rough brushing techniques. This is particularly common in individuals who have a family history of thin gum tissues. Removing the film of bacteria called plaque requires only gentle action with a soft brush. This is one reason that we stress the value of learning proper and effective brushing techniques. Gum recession becomes worse after the uncovered dentin of the tooth's root is exposed to erosion from sweet and acidic foods and beverages, such as fruit juices.

Doesn't tooth sensitivity indicate decay?
Decay can also cause tooth sensitivity. As decay destroys a tooth's structure, it eventually invades the inner pulp of the tooth, causing greater and greater pain.

How can you prevent or reduce tooth sensitivity?
As we mentioned above, learn proper brushing techniques; we would be happy to demonstrate them. Use a toothpaste that contains fluoride, which increases the strength of the tooth's protective coating. In more serious cases, we can apply a fluoride varnish or a filling material as a barrier to cover sensitive areas. If you experience long-term tooth sensitivity, make an appointment for an assessment and diagnosis so that we can determine the cause and proper treatment.

Contact us today to schedule an appointment to discuss your questions about sensitive teeth. You can also read the Dear Doctor magazine article “Sensitive Teeth.”

Temporomandibular Disorder (TMD), which was formerly known as Temporomandibular Joint Disorder (TMJ), is an interesting condition because it can be hard to diagnose and often mimics many other conditions. It arises when there are problems inside the temporomandibular joint, and the muscles attached to it, causing pain. When treating TMD, we typically start by relieving the symptoms of pain and discomfort with heat, mild pain medications, a diet of soft foods, and some simple jaw exercises. We feel that it is critical to address your pain issues as soon as possible before preceding any further with treatment.

Once we have provided some pain relief and after having completed a thorough history and examination, we can move to the next phase of treatment. This may include the introduction of a bite guard or some form of oral appliance therapy. A bite guard is an unobtrusive yet rigid plastic horseshoe-shaped appliance that fits snuggly over the biting surfaces of the upper teeth. When in place and properly adjusted, this custom-made appliance allows your muscles and therefore jaw joints to relax. And it will prevent you from grinding your teeth, another contributing factor to TMD. We will probably ask you to wear it when sleeping or in times when you are feeling stressed when clenching or grinding habits may be active. We may also suggest that you obtain some relaxation therapy and/or biofeedback from a licensed therapist, as this can prove helpful in treating TMD.

If you have suffered from frequent jaw pain in the past and suspect that you may have TMD, please let us know so that we can address it at your next appointment. Or if you are currently in constant or severe pain, contact us immediately to schedule an appointment. You can learn more about the signs, symptoms, and treatment options for TMD by reading “TMD — Understanding The Great Imposter.”

When you begin a smile makeover in our office, you are embarking on an exciting partnership with my laboratory technician and me. You should be full of excitement and anticipation — if you have been dissatisfied with your current smile, and you have great expectations for the results of this project. You will really like what you see in your mirror.

Being completely satisfied with your new look depends upon successful communication — between you and me and also between my dental lab technician and me. As you might expect, your perceptions of how your teeth appear are different from a dentist's perceptions. My education leads me to think of factors that untrained individuals probably won't consider, such as crown (tooth) length, midlines (how the teeth line up with other facial features) and the distance from gum to lip.

It is helpful to be able to describe what you like and don't like about your current smile, and what changes you would like to see. Using visual aids is a good idea. Bring photos and magazine illustrations to show what you have in mind. (Remember that we cannot make you look exactly like a celebrity or anyone else. The pictures are guidelines.)

Things to think about:

• The color, size, shape, alignment and spacing of your teeth.
• How much of your teeth and gum tissues show when your lips are relaxed and when you smile.
• Tooth color: bright “Hollywood” white or more natural looking off-white.

Your makeover is more likely to meet your expectations if you get an advanced view of the results. Computer imaging is one way to do this. Another is for us to make a mock-up of the proposed dental work in tooth-colored wax on models of your mouth.

Finally, a “Provisional Restoration” can be used as a test to make sure that what I envision is also what you, the patient, want to see. A provisional restoration, made from temporary materials, gives you a chance to test out the changes and make sure they work for you — that they not only look good, but they are also functional in terms of biting, chewing, speech, and gum health.

If the provisional restoration works, it is used as a blueprint to make durable and long lasting porcelains in the same design. We will take impressions of the provisional restoration and communicate the relevant information to a dental laboratory technician, who will make the final porcelain tooth replicas for your new smile.

Competent communication and a provisional restoration will put you on track to meet your expectations and obtain the most aesthetic and functional result in your Smile Makeover.

Contact us today to schedule an appointment to discuss your questions about Smile Makeovers. You can also learn more by reading the Dear Doctor magazine article “Great Expectations — Perceptions in Smile Design.”

Whitening your teeth is an easy way for most people to achieve a brighter, more appealing smile. And for older adults, it can also contribute to a more youthful appearance. We are often asked how our tooth whitening products and services stack up when compared to the many over-the-counter (OTC) products available at discount and drug stores. The following are some key facts to understand about teeth whitening so that you can receive the results you want.

What is the real difference between professional products and ones I can buy over-the-counter?

Whether you purchase over-the-counter whitening strips, toothpaste, mouthrinses, or “paint on” tooth whitening products, you are basically receiving the same product, but with a lower concentration of carbamide peroxide, the chemical responsible for teeth whitening. And while some of the products may contain a slightly higher concentration of this solution, they all are under strict governmental guidelines for ensuring you experience little to no side-effects as long as you follow the instructions. However, with our bleaching products and services, you are under the care of a trained professional and thus can receive much higher concentrations without compromising your health or the health of your teeth. This fact means that under our care you can achieve more dramatic results faster.

How long will the results last?

Bleaching is not a permanent solution; thus, your results will diminish over a six-month to one year period of time. However, it doesn't take much to touch up or maintain your white smile in a single visit, or with custom-made whitening trays that we can provide for home use. You can also keep your brighter smile a little longer by avoiding food that stains your teeth. And when drinking coffee, tea, cola, wine and other drinks like these, sip them using a straw so that they are less likely to discolor your teeth.

Is bleaching safe for my teeth?

We pride ourselves on providing and promoting optimal oral healthcare and thus would never offer any products or services that are unsafe. Additionally, there are numerous studies supporting the overall safety of whitening your teeth. We are careful to avoid sensitivity, which is an occasional side effect of intensive bleaching, and we suggest protecting the teeth with fluoride.

Want to learn more?

Contact us today to discuss your questions or to schedule an appointment. You can also learn more by reading the Dear Doctor article, “Teeth Whitening: Brighter, Lighter, Whiter....”

Fracturing back molars is an experience no one ever wants to have. But when a helicopter crashed during a back country ski trip, supermodel Christie Brinkley soon discovered that she had fractured two molars. Fortunately for Christie, her oral health was restored with two dental implants. As she said during an interview with Dear Doctor magazine, “I am grateful for the dental implant technology that feels and looks so natural.”

While Christie's dental implants replaced back teeth, we routinely use them to replace both back and the more visible front teeth. But best of all, we have demonstrated expertise at making dental implant crowns look real. This is where we meld science and artistry.

What drives the most natural and beautiful result is how the crown (the visible, white portion of a tooth) actually emerges through the gum tissues. We also match the adjacent teeth identically in color, appearance, shape and profile. But we can't take all the credit, as it takes an entire “behind-the-scenes” team to produce dazzling results. Choice of materials, the laboratory technician (the person who actually handcrafts the tooth), the expertise we use in placing a dental implant crown and the total quality of care we provide are the ingredients necessary for success.

Another critical factor required is ensuring there is enough bone volume and gum tissue to support an implant. Both of these must also be in the right position to anchor an implant. However, if you do not have adequate bone volume, you may be a candidate for a minor surgical procedure to increase your bone volume through bone grafting or other regenerative surgical techniques.

To learn more about dental implants, continue reading the Dear Doctor magazine article “Matching Teeth & Implants.” Or you can contact us today to schedule an appointment so that we can conduct a thorough examination, listen to your concerns, answer your questions and discuss treatment options. And if you want to read the entire feature article on Christie Brinkley, continue reading “The Secret Behind Christie Brinkley's Supermodel Smile.”