Frequently Asked Questions

What are dental sealants, who should get them, and how long do they last?

Sealants are a thin, plastic coating that are painted on the chewing surfaces of teeth — usually the back teeth (the premolars, and molars) — to prevent tooth decay. The painted on liquid sealant quickly bonds into the depressions and groves of the teeth forming a protective shield over the enamel of each tooth.

Typically, children should get sealants on their permanent molars and premolars as soon as these teeth come in. In this way, the dental sealants can protect the teeth through the cavity-prone years of ages 6 to 14. However, adults without decay or fillings in their molars can also benefit from sealants.

Sealants can protect the teeth from decay for up to 10 years, but they need to be checked for chipping or wearing at regular dental check-ups.

How do whitening toothpastes work and how effective are they at whitening teeth?

All toothpastes help remove surface stains through the action of mild abrasives. Some whitening toothpastes contain gentle polishing or chemical agents that provide additional stain removal effectiveness. Whitening toothpastes can help remove surface stains only and do not contain bleach. Over-the-counter and professional whitening products contain hydrogen peroxide (a bleaching substance) that helps remove stains on the tooth surface, as well as stains deep in the tooth. None of the home use whitening toothpastes can come even close to producing the bleaching effect you get from your dentist’s office through chair side bleaching or power bleaching. Whitening toothpastes can lighten your tooth’s color by about one shade. In contrast, light-activated whitening conducted in your dentist’s office can make your teeth three to eight shades lighter.

What about whitening strips and whitening gels? What’s the opinion on these products?

Both of these products contain peroxide in a concentration that is much lower than the peroxide-based products that are used in your dentist’s office. Although some teeth lightening will be achieved, the degree of whitening is much lower than results achieved with in-office or dentist-supervised whitening systems. Additionally, use of over-the-counter products do not benefit from the close supervision of your dentist -- to determine what whitening process might be best for you, to check on the progress of the teeth whitening, and look for signs of gum irritation. On the positive, the over-the-counter gels and strips are considerably less expense (ranging from $10 to about $55) than the top-of-the line in-office whitening procedures.

Beyond simply changing the color of my teeth, I’m interested in changing the shape of my teeth. What options are available?

Several different options are available to change the shape of teeth, make teeth look longer, close spaces between teeth, or repair chipped or cracked teeth. Among the options are bonding, crowns, veneers, and re-contouring.

Dental bonding is a procedure in which a tooth-colored resin material (a durable plastic material) is applied to the tooth surface and hardened with a special light, which ultimately "bonds" the material to the tooth. A dental crown is a tooth-shaped "cap" that is placed over a tooth. The crowns, when cemented into place, fully encase the entire visible portion of a tooth that lies at and above the gum line. Veneers (also sometimes called porcelain veneers or dental porcelain laminates) are wafer-thin, custom-made shells of tooth-colored materials that are designed to cover the front surface of teeth. These shells are bonded to the front of the teeth. Recontouring or reshaping of the teeth (also called odontoplasty, enameloplasty, stripping, or slenderizing) is a procedure in which small amounts of tooth enamel are removed to change a tooth’s length, shape, or surface.

Each of these options differ with regard to cost, durability, "chair time" necessary to complete the procedure, stain resistant qualities, and best cosmetic approach to resolving a specific problem.

I have a terrible fear of going to the dentist yet I recognize the importance of seeing the dentist to maintain good oral health. What should I do?

If you fear going to the dentist, you are not alone. Between 9 percent and 15 percent of Americans state they avoid going to the dentist because of anxiety or fear. The first thing you should do is talk with your dentist. Once your dentist knows what your fears are, he or she will be better able to work with you to determine the best ways to make you less anxious and more comfortable.

I’ve been a cigarette smoker for a number of years and am concerned about the possibility of developing oral cancer. What are the signs and symptoms of oral cancer?

First, it’s important to note that more than 25 percent of all oral cancers occur in people who do not smoke and who only drink alcohol occasionally. To answer your question, the following are the common signs and symptoms of oral cancer:

• Swellings/thickenings, lumps, bumps, rough spots/crusts/,or eroded areas on the lips, gums, or other areas inside the mouth
• The development of velvety white, red, or speckled (white and red) patches in the mouth
• Unexplained bleeding in the mouth
• Unexplained numbness, loss of feeling, or pain/tenderness in any area of the face, mouth, or neck
• Persistent sores on the face, neck, or mouth that bleed easily and do not heal within two weeks
• A soreness or feeling that something is caught in the back of the throat
• Difficulty chewing or swallowing, speaking, or moving the jaw or tongue
• Hoarseness, chronic sore throat, or changes in the voice
• Ear pain
• A change in the way your teeth or dentures fit together – a change in your "bite"
• Dramatic weight loss.

If you notice any of these changes, contact your dentist immediately for a professional examination.

I’m on a limited, fixed income and can’t afford regular dental care. Are there some resources available to me?

Yes. Thousands of dentists across the country offer their services at reduced fees through dental society-sponsored assistance programs. Since aid varies from one community to another, call your local dental society for information about where you can find the nearest assistance programs and low-cost care locations (such as public health clinics and dental school clinics).

Check your local phone book or the internet site for your local dental society. (Check under [name of state] dental society or [name of state] dental association, or county or region dental society or association).

The ADA’s website provides links to state dental associations, local societies, and state dental schools. Ask your dentist or call your local social service organization for assistance in locating these types of services in your local community.

I recently moved and am in need of finding a new dentist. How should I go about this task?

The ADA offers these suggestions:

• Ask family, friends, neighbors, or co-workers for their recommendations.
• Ask your family doctor or local pharmacist.
• If you're moving, your current dentist might be able to make a recommendation.
• Call or write your local or state dental society. Your local and state dental societies also might be listed in the telephone directory under "dentists" or "associations." The Columbus Dental Society provides a list of local and state dental societies on its website.

How safe are dental X-rays?

Exposure to all sources of radiation — including the sun, minerals in the soil, appliances in your home, and dental X-rays — can damage the body’s tissues and cells, and can lead to the development of cancer in some instances. Fortunately, the dose of radiation you are exposed to during the taking of X-rays is extremely small.

Advances in dentistry over the years have lead to the low radiation levels emitted by today’s X-rays. Some of the improvements are new X-ray machines that limit the radiation beam to the small area being X-rayed, higher speed X-ray films that require shorter exposure time compared with older film speeds to get the same results, and the use of film holders that keep the film in place in the mouth (which prevents the film from slipping and the need for repeat X-rays and additional radiation exposure). Also, the use of lead-lined, full-body aprons protects the body from stray radiation (though this is almost non-existent with the modern dental X-ray machines). In addition, state law requires that X-ray machines be checked for accuracy and safety every two years.

How Do I Prevent Cavities?

Although tooth decay has declined among young children as a group, it can still be a problem for individual children, and even teens and adults. That’s because plaque, a sticky film of bacteria, constantly forms on your teeth. When you eat or drink foods containing sugars or starches, the bacteria in plaque produce acids that attach tooth enamel. The stickiness of the plaque keeps these acids in contact with your teeth and after many such attacks, the enamel can break down and a cavity forms.

Preventing Decay:

• Brush your teeth twice a day with fluoride toothpaste.
• Clean between teeth daily with floss or an interdental cleaner.
• Eat a balanced diet and limit between-meal snacks.
• Visit your dentist regularly for professional cleanings and oral exams.
• Ask your dentist about dental sealants, a protective plastic coating that can be applied to the chewing surfaces of the back teeth where decay often starts.

When should I take my child to see the dentist?

The American Dental Association recommends that a child be seen by a dentist as soon as his or her first tooth erupts. Click here to download a one page summary called Baby's First Teeth.

The document is in Adobe Acrobat Reader format. If you do not have Acrobat reader, you can download it for free at: http://www.adobe.com/products/acrobat/readstep2.html

How can I whiten my teeth?

Everybody loves a bright white smile, and there are a variety of products and procedures available to help you improve the look of yours.

Many people are satisfied with the sparkle they get from brushing twice daily with a fluoride-containing toothpaste, cleaning between their teeth once a day and the regular cleanings at your dentist’s office. If you decide you would like to go beyond this to make your smile look brighter, you should investigate all of your options.

You can take several approaches to whiten your smile:

• In-office bleaching;
• At-home bleaching;
• Whitening toothpastes

You may want to start by speaking with your dentist. He or she can tell you whether whitening procedures would be effective for you. Whiteners may not correct all types of discoloration. For example, yellow-ish hued teeth will probably bleach well, brownish-colored teeth may bleach less well, and grayish-hued teeth may not bleach well at all. Likewise, bleaching may not enhance your smile if you have had bonding or tooth-colored fillings placed in your front teeth. The whitener will not effect the color of these materials, and they will stand out in your newly whitened smile. In these cases, you may want to investigate other options, like porcelain veneers or dental bonding.

When selecting a whitener or any dental product, be sure to look for the ADA Seal of Acceptance—your assurance that they have met ADA standards of safety and effectiveness. For more information, click here to visit the ADA's information about whitening options.

How can I prevent oral cancer?

Your dentist has recent good news about progress against cancer. It is now easier than ever to detect oral cancer early, when the opportunity for a cure is great. Currently only half of all patients diagnosed with oral cancer survive more than five years.

Your dentist has the skills and tools to ensure that early signs of cancer and pre-cancerous conditions are identified. You and your dentist can fight and win the battle against oral cancer. Know the early signs and see your dentist regularly.

Regular dental check-ups, including an examination of the entire mouth, are essential in the early detection of cancerous and pre-cancerous conditions. You may have a very small, but dangerous, oral spot or sore and not be aware of it.

Your dentist will carefully examine all areas of your mouth. In about 10% of patients, the dentist may notice a flat, painless, white or red spot or a small sore. Although most of these are harmless, some are not. Harmful oral spots or sores often look identical to those that are harmless - testing can tell them apart. If you have a sore with a likely cause, your dentist may treat it and ask you to return for re-examination.

Dentists often will notice a spot or sore that looks harmless and does not have a clear cause. To ensure that a spot or sore is not dangerous, your dentist may choose to perform a simple test, such as a brush biopsy, which usually is painless and can detect potentially dangerous cells when the disease is still at an early stage.

If your dentist notices something that looks very suspicious and dangerous, a scalpel biopsy may be recommended. This usually requires local anesthesia. Your general dentist may perform this procedure or refer you to a specialist for it. Click here for more information from the ADA.

What causes bad breath?

Whether you call it bad breath or halitosis, it’s an unpleasant condition that’s cause for embarrassment. Some people with bad breath aren’t even aware there’s a problem. If you’re concerned about bad breath, see your dentist. He or she can help identify the cause and, if it’s due to an oral condition, develop a treatment plan to help eliminate it.

What you eat affects the air you exhale. Certain foods, such as garlic and onions, contribute to objectionable breath odor. Once the food is absorbed into the bloodstream, it is transferred to the lungs, where it is expelled. Brushing, flossing and mouthwash will only mask the odor temporarily. Odors continue until the body eliminates the food. Dieters may develop unpleasant breath from infrequent eating.

If you don't brush and floss daily, particles of food remain in the mouth, collecting bacteria, which can cause bad breath. Food that collects between the teeth, on the tongue and around the gums can rot, leaving an unpleasant odor.

Bad breath can also be caused by dry mouth (xerostomia), which occurs when the flow of saliva decreases. Saliva is necessary to cleanse the mouth and remove particles that may cause odor. Dry mouth may be caused by various medications, salivary gland problems or continuously breathing through the mouth. If you suffer from dry mouth, your dentist may prescribe anartificial saliva, or suggest using sugarless candy and increasing your fluid intake.

Tobacco products cause bad breath. If you use tobacco, ask your dentist for tips on kicking the habit.

Bad breath may be the sign of a medical disorder, such as a local infection in the respiratory tract, chronic sinusitis, postnasal drip, chronic bronchitis, diabetes, gastrointestinal disturbance, liver or kidney ailment. If your dentist determines that your mouth is healthy, you may be referred to your family doctor or a specialist to determine the cause of bad breath.

Maintaining good oral health is essential to reducing bad breath. Schedule regular dental visits for a professional cleaning and checkup. If you think you have constant bad breath, keep a log of the foods you eat and make a list of medications you take. Some medications may play a role in creating mouth odors. Let your dentist know if you've had any surgery or illness since your last appointment.

Brush three times a day with fluoride toothpaste to remove food debris and plaque. Brush your tongue, too. Once a day, use floss or an interdental cleaner to clean between teeth.

Mouthwashes are generally cosmetic and do not have a long-lasting effect on bad breath. If you must constantly use a breath freshener to hide unpleasant mouth odor, see your dentist. If you need extra help in controlling plaque, your dentist may recommend using a special antimicrobial mouth rinse. A fluoride mouth rinse, used along with brushing and flossing, can help prevent tooth decay.