Posts for: May, 2018
Recently, a number of new filling materials that mimic tooth color have come into popular use and, so far, have proven more durable than past versions. Even so, the traditional metal-based dental amalgam remains a viable choice, especially for less visible back teeth and their higher biting forces.
Used for more than a century, dental amalgam is a metal alloy composed of silver, mercury, tin and copper. The mixture is carefully proportioned so that potentially hazardous mercury is kept to a minimum and bonded with the other metals. Amalgam in its initial form is quite pliable so that it can be molded into the tooth structure under repair. Afterward it sets hard to form a durable filling that can withstand the daily force generated when we bite and chew food.
Besides durability, dental amalgam rarely causes an allergic reaction in a patient, and it’s easy for trained dentists to apply. On the downside, however, it can cause temporary temperature sensitivity in the tooth just after filling, and the tooth itself may require some removal of healthy structure to help keep the filling in place. And from an aesthetic point of view, its metallic appearance is considered unattractive especially for front teeth.
The presence of mercury in amalgam has also raised concerns over the years. “Free” mercury — atoms that escape through vapor emitted by the metal — can enter the bloodstream and potentially harm the nervous system. But after extensive study and research, U.S. and international health bodies including the American Dental Association have concluded any free mercury released during chewing is extremely low and well below any harmful levels. These studies have also found no ill effects in either children or adults with dental amalgam fillings.
Deciding on the type of filling material to use — dental amalgam or a newer composite resin, resin ionomer or glass ionomer — depends on a number of factors including the location of the teeth to be filled, the extent of decay and your personal preferences. Taking these into account, we’ll be happy to discuss which type of filling will suit you best for repairing decayed teeth.
If you would like more information on filling material options including dental amalgam, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor magazine article “Silver Fillings — Safe or Unsafe?”
As your mother used to say, “A moist mouth is a healthy mouth.” Well, maybe she didn't — but it's still true. Without the constant flow of saliva, your teeth and gums would be less healthy.
That's because among its many functions, saliva helps keep the mouth from becoming too acidic. Just after eating, your mouth's neutral pH level tips to the acidic side of the scale. Acid is enamel's number one enemy, and it takes little time for it to begin dissolving mineral content. But in thirty minutes to an hour, saliva neutralizes the acid; it also helps restore some of the enamel's minerals.
Without adequate saliva flow, acid quickly gets the upper hand. In time, this can greatly increase your risk for dental disease. And for many people, inadequate saliva — dry mouth — is a chronic problem.
There are a number of reasons why. Salivary glands may not produce as much in our later years. In addition, as we age, we may begin taking more medications, some of which can cause dry mouth. Treatments for certain kinds of systemic diseases, particularly cancer, can also inhibit saliva or even damage salivary glands.
If you feel your mouth is continuously dry, make an appointment to find out the cause, which will determine the best course of action to alleviate it. If it's related to your medication, we'll see if there's an alternative. If not, you may need to drink more water when you take your medication and more throughout the day.
There are other things you can do as well. Reduce your intake of acidic foods or caffeinated beverages. Run a cool-air humidifier at night to keep your mouth and nose membranes moist. And you can also try saliva stimulants available by prescription or even over the counter. Chewing gum with xylitol (an alcohol-based sugar) has also been shown to stimulate saliva flow.
Above all, be diligent about daily brushing and flossing and regular dental cleanings and checkups. Keeping a watchful eye will help ensure dental disease doesn't take advantage of your dry mouth.
If you would like more information on managing dry mouth, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor magazine article “Dry Mouth.”
The most important part of dental health maintenance isn’t what your dentist does—it’s what you do every day when you brush and floss your teeth. And all you really need is a multi-tufted, soft bristle toothbrush, toothpaste, a roll of dental floss—plus a little effort from your hands and fingers.
Of course, manual power isn’t your only option—an electric or battery-powered toothbrush is a convenient and, for people with strength or dexterity issues, a necessary way to remove disease-causing plaque from tooth surfaces. You have a similar option with flossing—a water flosser.
Although water flossers (or oral irrigators) have been around since the early 1960s, they’ve become more efficient and less expensive in recent years. A water flosser delivers a pulsating stream of pressurized water between the teeth through a handheld device that resembles a power toothbrush, but with a special tip. The water action loosens plaque and then flushes it away.
While the convenience these devices provide over traditional flossing is a major selling point, they’re also quite beneficial for people with special challenges keeping plaque from accumulating between teeth. People wearing braces or other orthodontic devices, for example, may find it much more difficult to effectively maneuver thread floss around their hardware. Water flossing can be an effective alternative.
But is water flossing a good method for removing between-teeth plaque? If performed properly, yes. A 2008 study, for example, reviewed orthodontic patients who used water flossing compared to those only brushing. The study found that those using water flossing were able to remove five times as much plaque as the non-flossing group.
If you’re considering water flossing over traditional flossing thread, talk with your dental hygienist. He or she can give you advice on purchasing a water flosser, as well as how to use the device for optimum performance. It could be a great and more convenient way to keep plaque from between your teeth and harming your dental health.
If you would like more information on water flossing, please contact us or schedule an appointment for a consultation. You can also learn more about this topic by reading the Dear Doctor magazine article “Cleaning between Your Teeth: How Water Flossing can help.”