In the early 1900s, a Colorado dentist noticed his patients had fewer cavities than the norm. He soon found the cause: naturally occurring fluoride in their drinking water. That discovery led to what is now heralded as one of the most important public health measures of the last century — the use of fluoride to prevent tooth decay.
While you're most likely familiar with fluoride toothpaste and other fluoridated hygiene products, there are other sources of this chemical you should know about — especially if you're trying to manage your family's fluoride intake. Here are 3 of these common sources for fluoride.
Fluoridated drinking water. Roughly three-quarters of U.S. water utilities add fluoride to their drinking water supply under regulations governed by the Environmental Protection Agency. The federal government currently recommends 0.7 milligrams of fluoride per liter of water as the optimum balance of maximum protection from tooth decay and minimal risk of a type of tooth staining called dental fluorosis. You can contact your local water service to find out if they add fluoride and how much.
Processed and natural foods. Many processed food manufacturers use fluoridated water in their processes. Although not always indicated on the packaging, there are often traces of fluoride in cereals, canned soups, fruit juices or soda. Many varieties of seafood naturally contain high levels of fluoride and infant formula reconstituted with fluoridated water can exceed the level of fluoride in breast or cow's milk. Beer and wine drinkers may also consume significant levels of fluoride with their favorite adult beverage, particularly Zinfandel, Chardonnay or Cabernet Sauvignon wines.
Clinical prevention measures. As part of a child's regular dental treatment, dentists may apply topical fluoride to developing teeth, especially for children deemed at high risk for tooth decay. This additional fluoride can be applied in various forms including rinses, gels or varnishes. The additional fluoride helps strengthen a child's developing enamel and tooth roots.
How much fluoride your family ingests depends on a number of factors like your drinking water, food purchases and dental hygiene products and procedures. If you have any concerns about how much fluoride you're encountering in your daily life, please be sure and discuss them with your dentist.
If you would like more information on fluoride's benefits for dental health, 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 “Fluoride & Fluoridation in Dentistry.”
If you're one of the millions of people wearing an oral appliance, you already know how important it is to your dental health. Whatever the purpose—replacing teeth, stopping teeth grinding or guarding against injury—you want to get the most and longest service from it. That means showing your appliance some tender loving care on a regular basis.
It doesn't require a lot of time and effort to clean and maintain your oral appliance. But there are some pitfalls that could lead to greater wear and tear and just outright damage. Here are 3 things you should be on the alert for to keep your appliance doing its job for you.
Be careful how you clean it. Your appliance might resemble natural oral tissue, but it's not—so don't use toothpaste. Toothpaste contains abrasives, which are fine for tooth enamel but damaging to materials in your appliance. Instead, use dish detergent, hand soap or a specialized cleaner. Don't use hot or boiling water, which could soften any plastic and distort the appliance's mouth fit. Nix the bleach too, which can fade colored portions of the appliance that mimic gum tissue.
Don't wear them 24/7 unless your dentist advises. Depending on the type and function of your appliance, you shouldn't wear them around the clock unless your dentist advises otherwise. Dentures are usually removed at night while you sleep to help prevent bacterial growth. Keeping them out at night -and keeping them clean—will help lower your risk of dental disease. One caveat, though: there are some concerns today about the effect of keeping dentures out of the mouth at night on sleep apnea. It's a good idea, then, to discuss the issue with your dentist regarding taking dentures out at night.
Prevent accidental drops on hard surfaces. Chewing forces are considerable, but your appliance is designed to take it. The same can't be said, though, if they accidentally fall on a hard surface—the fall could crack or break them. To protect against this, be sure to put a soft towel or cloth in your sink basin while you're cleaning your appliance. And don't place it on a night stand or low surface where it could be knocked off accidentally by a child, a pet or you. A sudden accident like this could be costly.
If you would like more information on extending the life of your oral appliance, 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 “10 Tips for Cleaning Your Oral Appliance.”
With all the new tooth-colored fillings for cavities, it's easy to overlook metal amalgam. While this mainstay of dental care for over a century might not be as attractive as composite resins or glass and resin ionomers, it still has the advantage of strength and durability.
Amalgam is a stable metal alloy usually made up of silver, tin, copper and mercury. The metals are proportioned and mixed precisely to guard against “free” mercury molecules, which could pose a health hazard. The mixture is pliable at first, but then sets hard once molded into the prepared area of the tooth.
Besides strength, amalgam's other advantages include low cost, high resistance to wear and biocompatibility (not toxic to the body or allergy-producing). At the same time, it can require more tooth structure removal to accommodate a filling and cause higher sensitivity to temperature for a while after installation. Its main disadvantage, however, is appearance — it's now considered unacceptable from an aesthetic point of view to use it in visible areas like the front teeth.
Because of this, materials resembling natural tooth color are coming into vogue, especially as their strength improves. Still, dental amalgam continues to play a useful role, especially in less visible back teeth with higher chewing forces.
One past concern about dental amalgam is the inclusion of mercury in the alloy. As mentioned before, mercury is hazardous in a “free” form when not knit microscopically with other metals; as such it can emit a vapor that could enter the bloodstream and damage the nervous system. But after several studies by various organizations, the American Dental Association has concluded amalgam's precise mixture prevents the mercury from taking this form: although some vapor is given off during chewing it's far too low in concentration to pose any danger.
Dental amalgam continues to be an effective choice for fillings. Whether it's the right choice for you will depend on the type and location of a tooth to be filled, and whether durability is a higher concern than appearance. If we do recommend an amalgam filling, you can be assured it's a safe and lasting choice.
If you would like more information on your choices for dental fillings, 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?”
Some people are lucky — they never seem to have a mishap, dental or otherwise. But for the rest of us, accidents just happen sometimes. Take actor Jamie Foxx, for example. A few years ago, he actually had a dentist intentionally chip one of his teeth so he could portray a homeless man more realistically. But recently, he got a chipped tooth in the more conventional way… well, conventional in Hollywood, anyway. It happened while he was shooting the movie Sleepless with co-star Michelle Monaghan.
“Yeah, we were doing a scene and somehow the action cue got thrown off or I wasn't looking,” he told an interviewer. “But boom! She comes down the pike. And I could tell because all this right here [my teeth] are fake. So as soon as that hit, I could taste the little chalkiness, but we kept rolling.” Ouch! So what's the best way to repair a chipped tooth? The answer it: it all depends…
For natural teeth that have only a small chip or minor crack, cosmetic bonding is a quick and relatively easy solution. In this procedure, a tooth-colored composite resin, made of a plastic matrix with inorganic glass fillers, is applied directly to the tooth's surface and then hardened or “cured” by a special light. Bonding offers a good color match, but isn't recommended if a large portion of the tooth structure is missing. It's also less permanent than other types of restoration, but may last up to 10 years.
When more of the tooth is missing, a crown or dental veneer may be a better answer. Veneers are super strong, wafer-thin coverings that are placed over the entire front surface of the tooth. They are made in a lab from a model of your teeth, and applied in a separate procedure that may involve removal of some natural tooth material. They can cover moderate chips or cracks, and even correct problems with tooth color or spacing.
A crown is the next step up: It's a replacement for the entire visible portion of the tooth, and may be needed when there's extensive damage. Like veneers, crowns (or caps) are made from models of your bite, and require more than one office visit to place; sometimes a root canal may also be needed to save the natural tooth. However, crowns are strong, natural looking, and can last many years.
But what about teeth like Jamie's, which have already been restored? That's a little more complicated than repairing a natural tooth. If the chip is small, it may be possible to smooth it off with standard dental tools. Sometimes, bonding material can be applied, but it may not bond as well with a restoration as it will with a natural tooth; plus, the repaired restoration may not last as long as it should. That's why, in many cases, we will advise that the entire restoration be replaced — it's often the most predictable and long-lasting solution.
Oh, and one more piece of advice: Get a custom-made mouthguard — and use it! This relatively inexpensive device, made in our office from a model of your own teeth, can save you from a serious mishap… whether you're doing Hollywood action scenes, playing sports or just riding a bike. It's the best way to protect your smile from whatever's coming at it!
If you have questions about repairing chipped teeth, please contact us or schedule an appointment for a consultation. You can also learn more by reading the Dear Doctor magazine articles “Artistic Repair of Chipped Teeth With Composite Resin” and “Porcelain Veneers.”
If you know anyone with a dental implant, you may know it can be a long process in getting one. Several weeks or months can pass between removing the old tooth and placing the implant, and then several more weeks before affixing the permanent crown.
But with recent advances in implant technology, some patients don't have to wait as long for a new implant and crown. In fact, one procedure commonly known as "tooth in one day," allows patients to walk in with a problem tooth and out the same day with a new "one."
Not every implant patient, however, can undergo this accelerated procedure. If you're considering implants, the state of your bone health will determine whether or not you can.
Implants need a certain amount of available bone for proper placement. But bone loss, a common consequence of missing teeth or dental disease, can reduce bone volume to less than what's needed to place an implant. The patient may first need to undergo grafting to regenerate the bone or choose another restorative option.
If your supporting bone is sound, your dentist might then proceed with the implant. But you will still have to wait a while for your new crown. The implant needs to integrate with the bone to improve its hold. This integration process can take anywhere from a minimum of six weeks to more commonly twelve weeks. After the attachment is mature, the dentist may need to undo the gum covering before taking impressions for the formation of the new crown.
But it is possible to have a tooth or teeth in a day. For a single tooth, your dentist may be able to immediately attach a crown right after implant surgery if the implant is very stable. Even so, this crown will need to be temporary, slightly shorter than a permanent crown so that it won't make contact with other teeth and put too much pressure on the new implant. After further healing from bone integration, impressions will be taken so that you'll receive your permanent crown shortly.
Immediate crown placement can allow you to have the cosmetic and limited functional benefit of a new tooth right from the start. If multiple implants are placed in one arch in a day, it's possible to have immediate teeth if enough implants are attached together with a temporary restoration.
This is different from a single implant replacing a single tooth and does create confusion for patients when they read about teeth in a day. Regardless, no final tooth crown can be placed at the time of an implant—only a temporary restoration.
If you would like more information on your options for dental implants, 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 “Same-Day Tooth Replacement with Dental Implants.”
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