The CDC (Centers for Disease Control and Prevention) calls fluoridation of drinking water one of the ten most important public health measures of the 20th century, along with such measures as vaccination and motor-vehicle safety.

A fluoride concentration of about one milligram per liter (1 mg/L), or 1 part per million (1ppm), in the water supply is associated with substantially fewer cavities. This concentration of fluoride (equivalent to a grain of salt in a gallon of water) has been found to have no negative health effects.

The connection between fluoride and oral health was confirmed in the first half of the 20th century, and by 1955 the first clinically proven fluoride toothpaste was launched. Fluoride-containing toothpastes are common today, along with other fluoride-containing products.

Protective Effects of Fluoride
Ongoing studies have shown that fluoride has both a systemic (through the body) effect and a local effect at the tooth surfaces. Tooth decay takes place as part of a kind of active war between de-mineralization and re-mineralization, in which acids produced by bacteria in plaque (a biofilm in your mouth) soften and dissolve the minerals (de-mineralization) in the tooth's surface. At the same time, the saliva bathing the tooth acts to re-harden the tooth's surface by adding minerals back (re-mineralization). If fluoride is present in the biofilm and in the saliva, it protects against de-mineralization.

The fluoride you drink in your water is deposited in your bones. Bone is an active living substance that is constantly broken down and rebuilt as a normal body process. As this happens the fluoride is released into the blood, from which it can enter the saliva and act on the tooth surface. The fluoride in toothpastes and products like rinses is delivered directly to the tooth surface. Fluorides can also be eaten in foods with high fluoride content such as teas, dry infant cereals and processed chicken, fish and seafood products.

Problems with Over-use
Eating or swallowing too much fluoride can contribute to a discoloration of teeth called dental fluorosis, which varies in appearance from small white striations to stained pitting and severe brown mottling of the enamel. To avoid this effect, monitor children's tooth brushing to make sure they use only a small amount of fluoride toothpaste and do not swallow it.

Adding fluoride to water has been controversial because some people believe that it may cause other harmful effects. However, most health experts believe that fluoridated water carries no significant health risks and significantly contributes to public health by preventing tooth decay.

Contact us today to schedule an appointment to discuss your questions about fluoride. You can also learn more by reading the Dear Doctor magazine article “Fluoride & Fluoridation in Dentistry.”

It may alarm some people, but finger or thumb sucking is a completely normal activity for babies and young children. In fact, sonograms often reveal babies sucking a finger or thumb while still in the womb! However, if children are allowed to suck fingers, thumbs or pacifiers indefinitely, it can become problematic, with serious consequences particularly as they get older.

The list below contains important facts about thumb sucking and pacifiers that all parents of young infants should know.

• The American Academy of Pediatric Dentistry recommends that parents and caregivers encourage children to stop thumb sucking by age 3.
• Recent studies have shown that pacifier use after the age of two may cause long-term changes in the mouth; thus these researchers recommend stopping pacifier use by 18 months.
• If thumb and finger sucking habits do not stop soon enough, the upper front teeth may tip toward the lip or not come into the correct position in the mouth.
• Most children who suck their thumbs or fingers tend to stop between the ages of 2 and 4.
• For obvious reasons, a pacifier habit is often easier to break than a finger or thumb-sucking habit.
• One tip for encouraging older children to stop this habit gradually is to use behavior modification with appropriate rewards given at pre-determined intervals to refrain from using a pacifier, or sucking fingers or a thumb.

Be sure to inform us if any of your children suck their fingers, thumb or a pacifier so that we can begin monitoring their development. Our general recommendation is that you schedule an appointment around your child's first birthday.

You may have noticed, as you get older, that the enamel of your teeth is looking worn in certain areas. Sometimes tooth wear takes the form of a minor chipping or fracturing at the incisal (cutting) edges of the teeth, or a loss of tooth material from the area near the gum line. In more severe cases, worn teeth look quite a bit smaller than they used to. Why does this happen?

Some wear with age is natural. But too much wear can interfere with your bite, expose more sensitive inner parts of the tooth to decay, and give you a more aged appearance.

There are things you can control that affect wear:

Your habits: Clenching or grinding habits, also called “bruxism,” is a major cause of tooth wear. The motion of teeth sliding over each other with forces that are beyond what's normal for biting or chewing causes a mechanical removal of tooth enamel. This can happen during sleep or periods of high stress. In either case there are therapies available, such as a thin, professionally made mouthguard that prevents your teeth from coming into contact with each other. Holding foreign objects, such as nails and bobby pins, between your teeth can also cause wear.

Your diet: Tooth enamel can be eroded (dissolved away) by acidic beverages, such as sodas, sports drinks and juices. Frequent snacking on sugary foods encourages the growth of oral bacteria that produce acid as a byproduct — also leaving your teeth vulnerable to tooth decay. Your saliva can buffer the effects of the acid in your mouth in about half an hour; if you consume these types of foods and beverages continually, there won't be enough time for this to work.

We can restore the appearance and function of worn teeth in a variety of ways. Porcelain crowns and veneers, for example, can re-establish the normal thickness and length of teeth while improving their color and giving you a more youthful appearance.

If you have any questions about tooth wear, please contact us today to schedule an appointment for a consultation. You can learn more about tooth wear by reading the Dear Doctor magazine article “How And Why Teeth Wear.”

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.”

Dental professionals agree that effective removal of plaque, the film of bacteria (also called a biofilm) that gathers on everyone's teeth, is the key to good dental health. Daily brushing and flossing are the usual recommendation for plaque removal. It is important to ask us about effective brushing and flossing. At your next appointment, ask us for a demonstration.

Effective brushing removes plaque from the easily accessed surfaces of the teeth. To remove plaque from between the teeth, you must floss.

Some people find it awkward to hold the floss with their fingers as they move it around their teeth. One technique for flossing, suggested by a dentist in Dear Doctor magazine, may make it easier than more traditional methods, although it does take a little practice.

Preparation
This method requires tearing off a 10 to 12 inch length of floss and tying it to form a circle big enough for your fingers, but not your thumbs, to fit within it. The circle should be knotted with a double knot.

To Clean Teeth and Gums
Keep the floss taut at all times, with about and inch or less between your thumb and index fingers for your upper teeth, or index fingers only for your lower teeth. Curve the floss around each tooth and gently move it up and down until you hear a squeaky clean sound. Extend the downward movement of the floss to just below the surface of the gum, without being too harsh and causing injury. As you move from tooth to tooth, move around the floss circle so that each tooth gets a clean section of floss.

Upper Teeth
Place all your fingers in the ring, with the floss over your left thumb and right index finger to floss your upper left teeth, and over your right thumb and left index finger to do the other side.

Lower Teeth
Use both index fingers to floss all your lower teeth.

You may only need to floss once a day before or after brushing to keep your gums health and ward off periodontal (gum) disease. Your dentist will guide you as to how often you may need to floss your teeth. Try this technique and see how it works for you.

Contact us today to schedule an appointment to discuss your questions about flossing techniques. You can also learn more by reading the Dear Doctor magazine article “Flossing — A Different Approach.”