Getting enough sleep is necessary for good health. We all know how energetic we feel when we are sleeping well at night. Yet, many of us do not feel rested, even after seven or eight hours of sleep. Let's answer some common questions about snoring and sleep apnea, problems that are often called sleep related breathing disorders (SRBD).

What is the purpose of sleep?
Scientists know we need sleep, at a particularly deep level, to be rested, but they are not sure why we need sleep. Sleep may have evolved as a way to conserve energy in the body, to conserve food supplies, or to reduce our risk during darkness. Sleep appears to give the brain a chance to store and organize its information and the body a chance to recuperate. Sleep studies have shown that in order to get the full benefits of sleep we need to sleep long and deeply enough to enter into a series of sleep cycles including Rapid Eye Movement (REM) and Non-Rapid Eye Movement (NREM) sleep.

What kinds of problems get in the way of the type of sleep we need?
There are eight main categories of sleep disorders, but the ones affecting the largest numbers of people are insomnia, SRBD, and Circadian Rhythm Sleep Disorders. SRBDs include snoring and Obstructive Sleep Apnea (OSA), which is a serious health problem.

How do I know if I have OSA or another SRBD?
Often, your bed-partner will tell you that you snore. Chronic loud snoring is an indicator of OSA. To make a diagnosis your physician must take a thorough sleep and medical history. The diagnosis may then be confirmed by a study in a sleep lab.

What causes sleep apnea or OSA?
Snoring and OSA happen when your tongue and other soft tissues in the back of your throat collapse backwards and block airflow through your upper airway or windpipe. You may briefly awaken as many as 50 times per night because of these breathing lapses. These brief awakenings, called micro-arousals, keep you from reaching the deep stage of sleep your body needs.

What are the treatments for sleep apnea?
Treatments include CPAP therapy, in which patients wear a mask while sleeping. The mask pushes air through the airway, keeping it open. In Oral Appliance Therapy (OAT) patients wear a device that moves the lower jaw forward, allowing more room for air to move down the airway. Oral surgical procedures and orthodontic approaches also have the goal of moving the tongue away from the throat. These are all treatments that can be carried out by a dentist who has training and experience in treatment of sleep disorders.

Contact us today to schedule an appointment to discuss your questions about sleep disorders and their treatments. You can also learn more by reading the Dear Doctor magazine articles “Sleep Disorders and Dentistry” and “Sleep Apnea Frequently Asked Questions.”

The term “root canal” strikes fear into many dental patients. But rest assured that this procedure is the best solution to many severe dental problems. It can be pain-free and will actually relieve pain and suffering from infections and dental injuries.

Why would you need root canal treatment? This procedure becomes necessary when the pulp, the nerve tissue on the inside of a tooth's root, becomes inflamed or infected because of deep decay, or when it has suffered a severe injury as a result of an accident or blow to the mouth. The pulp is composed of living tissues including nerves and blood vessels.

Root canal treatment may be necessary if you have a wide variety of signs or symptoms. The pain can feel sharp or intense when biting down, or linger after eating hot or cold foods. Sometimes it can be a dull ache or there may be tenderness and swelling in your gums near the site of the infection.

After trauma, the pulp of a tooth can be exposed or damaged because a tooth has fractured or cracked, necessitating root canal treatment. And the procedure is often needed for permanent teeth that have been dislodged or knocked out.

What exactly is root canal treatment? Root canal treatment is also called endodontic treatment, from the Greek roots “endo” meaning “inside” and “odont” meaning “tooth.” During the procedure, the area is numbed to relieve pain. A small opening is created in the chewing surface of the tooth and very small instruments are used to remove dead and dying tissue from the inside. The pulp is needed during a tooth's growth and development, but a mature tooth can survive without it. The canal is disinfected and then sealed with filling materials. Sometimes root canal specialists use microscopes to work at an intricate level of detail on these tiny areas of the tooth's root.

By having root canal treatment, you prevent inflammation and infection from spreading from the root of a particular tooth to other nearby tissues. Infection can result in resorption, an eating away of the root and its anchoring bone, and you could lose your tooth or teeth. So please don't hesitate when we recommend this treatment. It's not as bad as you think, and you will feel significantly better afterwards.

Contact us today to schedule an appointment to discuss your questions about root canal treatment. You can also learn more by reading the Dear Doctor magazine articles “Common Concerns About Root Canal Treatment” and “Trauma & Nerve Damage to Teeth.”

Scientists don't know much about sleep even though it has been extensively studied. We do know that several hours of deep, restful sleep per night are essential for a healthy life.

Many people remain tired and unrefreshed, even after a full night's sleep. About a third of them are affected by sleep related breathing disorders (SRBD). Dentists can play a significant role in helping patients overcome these disorders, which range from frequent snoring to severe Obstructive Sleep Apnea (OSA). If you think you may have such a disorder, read on.

Under normal conditions, your upper airway is open, allowing air to flow from your nose, through your throat, and into your lungs. If you suffer from SRBD, you experience frequent reductions in the flow of air to your lungs during sleep. You may not be aware of it, but sometimes your breathing may even stop for brief periods. These reductions happen when your tongue and other soft tissues in the back of your throat collapse backwards and block your upper airway or windpipe. You may briefly awaken as many as 50 times per night because of these breathing lapses. These brief awakenings, called micro-arousals, keep you from reaching the deep stages of sleep your body needs.

The resulting reduced oxygen flow to your heart and to your brain can cause serious damage. You will also be tired during the day and experience a lack of energy, even if you sleep for seven or eight hours per night. This constant drowsiness puts you at greater risk for accidents.

Because dentists generally see their patients at six-month or other regular intervals, we are in a good position to screen and refer patients with suspected SRBD to physicians for diagnosis and treatment. Dentists can also treat SRBD in a number of ways.

• One of these is Oral Appliance Therapy (OAT), in which a device that looks something like an orthodontic retainer holds your lower jaw in a forward position relative to your upper jaw, preventing your tongue and soft tissue from collapsing into your airway.
• Another consists of breathing equipment called Continuous Positive Airway Pressure (CPAP). The CPAP is a mask connected to a machine that pushes air into your lungs.
• Other treatments include oral surgery or orthodontia. The goal of these techniques is to increase the volume of air passing through your upper airway by pushing your tongue forward.

Medical insurance usually covers the cost of much of these treatments.

Contact us today to schedule an appointment to discuss your questions about sleep disorders and their treatments. You can also learn more by reading the Dear Doctor magazine article “Sleep Disorders and Dentistry.”

As the Boy Scouts say, it's best to be prepared. You may never have a traumatic injury to your teeth. But what if you do? Here are four questions and answers about such injuries and their treatment that may be helpful some day.

What are traumatic injuries?
We are talking about physical damage caused by a fall, an accident, or a blow to the face. The word trauma comes from the Greek root meaning “wound.”

A traumatic injury can also cause broken, cracked, or split teeth, or a fracture to the root of the tooth. A tooth may be dislodged from its proper position, pushed sideways, out of or deeper into its socket. It may even be completely knocked out of your mouth.

What should you do if your tooth is knocked out?
With proper treatment, the tooth can be restored to its original place. You must handle the tooth gently and seek professional help as soon as possible. Rinse the tooth in cold water if it is dirty, but do not use any cleaning agent. Avoid touching the root. While hurrying to your dentist, keep the tooth from drying out by keeping it in a container of milk or of your saliva, or by holding it in your mouth between gum and cheek. It is vital to keep the tooth's living tissues moist until it can be professionally assessed and replanted in its socket. If a tooth has been dislodged but not knocked out, it must be repositioned in its socket and may be stabilized with a splint.

Who can treat a tooth that is damaged by a traumatic injury?
A general dentist, an oral surgeon or an endodontist is trained to treat such injuries. An endodontist is trained to treat the root canal(s) inside a tooth. The word comes from “endo” the Greek word for “inside,” and “odont,” the word for “tooth.” After a tooth is replaced in its socket and stabilized, root canal treatment is often needed.

What is root canal treatment?
A tooth is composed mostly of dentin, a living tissue. The top part or crown is covered by hard mineralized enamel. The soft tissue inside the tooth, the pulp, contains blood vessels, nerves and connective tissues. It extends from the crown to the tip of the roots. Treatment of dental pulp injuries is called root canal or endodontic treatment and is usually needed to treat teeth that have been dislodged or fractured.

Contact us today to schedule an appointment to discuss your questions about injuries to teeth and related nerve damage. You can also learn more by reading the Dear Doctor magazine article “Trauma & Nerve Damage to Teeth.”

One question we are most often asked by parents of athletes or those who participate in physical sports is, “Do mouthguards really work?” And when we respond, “yes,” a common follow-up question is, “Is there any scientific evidence to support this claim?” Based on this scenario, we feel it is important to provide you with some interesting and evidence-based facts on this topic.

The first reported use of mouthguards was in the sport of boxing. And because participants and bystanders in the 1920s quickly witnessed their effectiveness even back then, the trend's popularity grew to the point that boxing became the first professional sport to require them. However, other sports soon started following this lead — especially those high-contact sports. The American Dental Association (ADA) started mandating the use of mouthguards for football in 1962 and the US National Collegiate Athletic Association (NCAA) currently requires mouthguards for football, ice hockey, lacrosse and field hockey. The ADA has since expanded their recommendations to now include 29 different sports and exercise activities. So now that you know more about the professional organizations pushing the use of mouthguards, let's get back to the second question, “What's the evidence?”

There have been numerous studies over the years regarding the properties of mouthguards, and more specifically their shock absorbing capabilities. Other studies have been based upon their protective abilities due to their stiffness, hardness and strength. This research has enabled us to vastly improve upon the effectiveness of mouthguards. For example, years ago latex rubber was a popular material used to create mouthguards. However, today we use products such as ethylene vinyl acetate or polyurethane because they are far superior in durability and flexibility. And impact studies have shown that the chances of fracturing teeth is dramatically reduced when wearing one of these mouthguards...especially when compared to individuals wearing no mouthguard at all. In fact, research has revealed that by not wearing a mouthguard during physical sports or exercise, individuals are 60 times more likely to experience an injury to the mouth and/or teeth.

To learn more about the importance of protective mouthguards, continue reading the Dear Doctor magazine article “Athletic Mouthguards.” Or you can contact us today to schedule an appointment to discuss your questions about mouthguards.