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We’re all friends here, so if you sometimes feel a bit nervous before your dental appointment, no judging! Ask us about any worries you might have. We are happy to explain procedures, equipment, and sedation options so you know just how safe and comfortable your experience can be. And if X-rays are a concern, we can put your mind at ease here as well.

What Exactly Are X-rays?

Sometimes patients feel reluctant about the process of imaging because X-rays are a kind of radiation. But the fact is, radiation is all around us. We are exposed to radiation naturally from our soil and water, sun and air, as well as from modern inventions such as cell phones, Wi-Fi, and air travel.

Why is radiation so common? Because matter throughout the universe constantly gives off energy, and the energy that is emitted is termed radiation. This radiation takes two forms—as particles (which we don’t need to consider!) and as traveling rays. This second type is known as electromagnetic radiation, created by photons traveling in regular waves at the speed of light.

We are exposed to electromagnetic radiation every day, because, whether we can see them or not, these different wavelengths and frequencies create various forms of light. Radio waves, microwaves, infrared, visible, and ultraviolet light, X-rays, and gamma rays are all part of the electromagnetic light spectrum.

Different types of radiation on this spectrum have different wavelengths and different frequencies, and produce different amounts of energy. Longer wavelengths mean lower frequencies and less energy. Because X-rays have shorter wavelengths and higher frequencies than, for example, radio waves and visible light, they have more energy.

How Do Dental X-rays Work?

An X-ray machine produces a very narrow beam of X-ray photons. This beam passes through the body and captures images of our teeth and jaws on special film or digital sensors inside the mouth (intraoral X-rays), or on film or sensors located outside the mouth (extraoral X-rays). These X-ray images are also known as radiographs.

Why are X-rays able to take pictures inside our bodies? Remember that higher energy we talked about earlier? This energy enables X-rays to pass through the softer, less dense parts of our bodies, which are seen as gray background in a radiograph. But some substances in our bodies absorb X-rays, such as the calcium found in our bones and teeth. This is why they show up as sharp white images in radiographs.  

There are different types of common dental X-rays which are used for a number of reasons:

• Bitewing X-rays, which are used to check on the health of the back teeth.
• Periapical X-rays, which allow us to look at one or two specific teeth from crown to root.
• Occlusal X-rays, which show the entire arch of teeth in the upper or lower jaw.
• Panoramic X-rays, which use a special machine to rotate around the head to create a complete two-dimensional picture of teeth and jaws.
• Cone Beam Computed Tomography, an external device which uses digital images to create a three-dimensional picture of the teeth and jaws.

Why Do We Need X-rays?

If all of our dental conditions were visible on the surface, there would be no need for X-rays. But there are many conditions that can only be discovered with the use of imaging—infection, decay, a decrease in bone density, or injuries, for example, can show up as darker areas in the teeth or jaws. Among their many diagnostic uses, X-rays can help us find:

• Cavities between teeth or under old fillings
• Damage to the tooth’s pulp which might require root canal treatment
• Injuries to teeth or roots after trauma
• Abscesses, tumors, or other conditions that might be causing swelling or pain
• Position and development of wisdom teeth
• Ideal placement for implants
• Health and density of the jaw and alveolar bone

X-rays can also serve an important preventative role, by discovering small problems before they become major ones.

How Do Dentists Make Sure Your X-rays Are As Safe As They Can Be?

First of all, the amount of radiation you are exposed to with a dental X-ray is very small. In fact, a set of bitewing X-rays exposes us to slightly less than the amount of radiation we are exposed to through our natural surroundings in just one day. Even so, Drs. Sidney and Jacob Kelly and our team are committed to making sure patients are exposed to as little radiation as possible.

Radiologists, the physicians who specialize in imaging procedures and diagnoses, recommend that all dentists and doctors follow the safety principal known as ALARA: “As Low As Reasonably Achievable.” This means using the lowest X-ray exposure necessary to achieve precise diagnostic results for all dental and medical patients.

The guidelines recommended for X-rays and other imaging have been designed to make sure all patients have the safest experience possible whenever they visit the dentist or the doctor. We ensure that imaging is safe and effective in a number of ways:

• We take X-rays only when they are necessary.
• We provide protective gear, such as apron shields and thyroid collars, whenever needed.
• We make use of modern X-ray equipment, for both traditional X-rays and digital X-rays, which exposes patients to a lower amount of radiation than ever before.
• When treating children, we set exposure times based on each child’s size and age.

And now that we’ve talked about some things you might like to know,

Please Let Us Know If . . .

• You’re a new patient, with previous X-rays taken during regular exams or for specific procedures. Ask to have your older X-rays sent to our office. With digital X-ray technology, this transfer can be accomplished with e-mail! Having your dental history available lets us notice any changes that have taken place.
• You’re pregnant, or think you might be pregnant. Even though radiation exposure is very low with dental radiographs, unless there is a dental emergency, dentists and doctors recommend against X-rays for pregnant patients.

X-rays play an important part in helping us make sure your teeth stay their healthiest. If you have any concerns, contact our Roseville, CA office. When it comes to making sure you’re comfortable with all of our procedures, including any X-rays that might be necessary, we’re happy to give you all the inside information!

Before electric toothbrushes, before dental floss, before fluoride rinses, in fact, before recorded history, people who cared about their dental health had one primary tool—the toothpick. Ancient bronze toothpicks, bejeweled Renaissance picks, and the more humble modern wooden picks have been instrumental in promoting dental hygiene for centuries.

And, while that clean, simple design is still a good one, modern technology has found a way to build an even better toothpick. Today’s interdental picks not only dislodge food particles effectively, but now gum stimulation, cleaner orthodontic appliances, and fresher breath are available literally at our fingertips. Most important, these picks are just as effective as floss for removing plaque.

• Wood? Still Good!

Today’s softer wooden picks come in several shapes designed to fit comfortably and snugly between the teeth. Using a gentle in-and-out motion, you can clean between your teeth as you remove plaque from the tooth surface. But that’s not the only benefit! As you move the wide end of the pick up and down between teeth and gums, you are actually stimulating your gum tissue as well.  They even come with mint flavoring to refresh your mouth as you clean. And, of course, wood and bamboo picks are biodegradable.

• Plastic? Fantastic!

If you’d like something a little more yielding than wooden dental picks, you have options. Soft dental picks are available that use rubber “bristles” on a plastic stem to gently ease their way between teeth. The heads are available in different diameters to accommodate tight or wide spacing between the teeth. Straight or curved stems provide the accessibility you need. If you have latex allergies, be sure to choose a rubber product that is latex-free.

• Interproximal Brushes? Here’s What the Buzz Is

You might have missed these miniature brushes in the dental care aisle, but they are worth looking for. Interproximal brushes have small cone-shaped heads with nylon bristles for cleaning food particles and plaque from between the teeth. They are good for more than one use, and some are available with angled or bendable handles for hard-to-reach spots. They come in different diameters, from wide to extremely fine, to suit the spacing of your teeth. Interdental brushes are especially useful for braces wearers, who can use these clever tools to clean tight, tricky areas under wires and around brackets.

Even though bronze, bejeweled, or golden toothpicks aren’t available in the dental aisle of the local drugstore, increased efficiency and function are well worth the trade-off. If for any reason you have trouble flossing, or if you like the idea of massaging your gums as you clean your teeth, or if you wear braces, or if you want a burst of mint flavor—for any number of reasons today’s dental picks are worth a try. Talk to Drs. Sidney and Jacob Kelly at your next visit to our Roseville, CA office, and we’ll be happy to give you some recommendations. 

“What is the strongest substance in the body?” If this question comes up on trivia night, be prepared to impress your team when you confidently answer, “Tooth enamel!”

Tooth enamel? The reason for this surprising answer lies in the biology of our teeth. Minerals make up well over 90% of our enamel, a much higher percentage than is found anywhere else in the body, including our bones. But unlike bone tissue, which can heal and regenerate, tooth enamel cannot. Even though it is extremely strong, enamel can be damaged by a process called demineralization.

Demineralization

Demineralization is a result of acids at work in our mouths. Acids actually break down the minerals in our enamel, making the enamel softer. Over time, bacteria attack deeper into the tooth, eventually leading to decay. Acidic foods like sodas, citrus, pickles, and coffee are obvious culprits in providing an acidic environment, but there are other problem foods as well. We all have bacteria in our mouths, which can be helpful or harmful. The bacteria in plaque use the sugars and starches we eat to produce even more acids.

This process is something that takes place very quickly. In fact, even brushing too soon after eating something acidic can damage the demineralized surface of a tooth. Waiting at least 20 to 30 minutes to brush gives our bodies a chance to restore the enamel surface in a process called remineralization.

Remineralization

Our bodies are actually designed to help protect our enamel, and the most important part of this process is saliva production. Saliva cleanses our teeth and reduces levels of acidity. And our saliva constantly washes important minerals over our teeth. Calcium and phosphate ions rebuild and strengthen molecules where demineralization has taken place. This process is called remineralization.

We have other ways to help the remineralization process along. Fluoride toothpastes and fluoridated water speed up the movement of mineral building blocks back to the surface of the tooth. Fluoride also strengthens our teeth so that they resist acids and demineralization better than teeth without fluoride, making them less vulnerable to cavities.

New products are available for home and professional use that are designed to increase remineralization—talk to Drs. Sidney and Jacob Kelly at our Roseville, CA office if you would like the latest recommendations. In fact, talk to us about tooth-friendly menus, the best toothpastes, brushing techniques, and all the ways to keep your enamel its healthiest. You’ll be answering all those trivia questions with a strong, confident smile!

Many varieties of fillings are available at our Roseville, CA office. Most people are familiar with traditional amalgam fillings: those big silver spots on top of teeth.

Made from a mixture of silver, tin, zinc, copper, and mercury, amalgam fillings have been used to fill cavities for more than 100 years. They offer several advantages, including:

• High durability for large cavities or cavities on molars
• Quick hardening time for areas that are difficult to keep dry during placement
• Reduced placement time for children and special-needs patients who may have a difficult time keeping still during treatment

Although dental amalgam is a safe and commonly used dental material, you might wonder about its mercury content. You should know that when it’s combined with the other metals, mercury forms a safe, stable material.

The American Dental Association, U.S. Centers for Disease Control and Prevention, U. S. Food and Drug Administration, and World Health Organization all agree that based on extensive scientific evidence, dental amalgam is a safe and effective cavity-filling material.

White Fillings

Newer, mercury-free, resin-based composite fillings (white fillings) are also available at our Roseville, CA office. Composite resin fillings are made from plastic mixed with powdered glass to make them stronger.

Resin-based fillings offer several benefits for patients, including:

• They match the color of teeth
• Less tooth structure needs to be removed than with amalgam fillings
• BPA-free materials can be used

Resin-based composite fillings also have some disadvantages, including:

• Higher cost than amalgam fillings
• Inlays may take more than one visit
• Requires more time to place than amalgam fillings

There’s a lot to think about when you have to get a cavity filled. We recommend you do your homework and speak with Drs. Sidney and Jacob Kelly before deciding what’s best for you or your family.