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Digital X-rays

February 24th, 2021

Modern orthodontic technology has changed the way you wear braces. Brackets are smaller and come in a variety of shapes and colors. Wires are more efficient. Clear aligners can eliminate the need for brackets and wires altogether. And your high-tech advantages don’t stop there—today’s digital X-rays make creating your treatment plan even more convenient and efficient.

Why Are X-rays Necessary?

Beautifully aligned teeth and a healthy bite are the visible result of your orthodontic work, but there’s a lot going on above and below the surface that needs to be discovered and taken into account before your treatment even begins. X-rays help Dr. Daniel Ma evaluate:

  • The size, shape, and position of your teeth, including impacted teeth and wisdom teeth
  • The size, position, and health of your roots throughout treatment
  • The size and shape of your jaw bones, and how they affect your teeth alignment and bite
  • Your progress during different phases of treatment
  • The most effective type of retainer for protecting your beautiful smile after treatment.

How Do X-rays Work?

Traditional X-rays, or radiographs, make use of film just like traditional cameras. When you have an intraoral X-ray, for example, the film is sealed in a moisture- and light-proof packet, and placed inside the mouth to capture images of specific teeth and the bone around them.

The X-ray machine is aligned precisely with the film and an exposure is taken. The image at this point is latent, and won’t show on the film, because, just like photo film, traditional radiographs need to be chemically processed before they produce a visible image.

Digital technology, on the other hand, uses an electronic sensor instead of film. For an intraoral digital X-ray, a small sensor is positioned in the mouth just like a film. When the X-ray is taken, a digital image capture device produces an image which is formed by a matrix of pixels instead of a photo-like film exposure. This format allows the image to be sent directly to a computer for immediate display without requiring processing.

Even though these methods seem very similar, digital X-rays offer some significant advantages over traditional films. Let’s look at how they compare, more or less.

  • More Diagnostic Advantages

A traditional X-ray is a fixed image. It cannot be modified or enhanced. Here the digital X-ray offers a clear advantage in evaluating your teeth and the bone structure surrounding them.

Just as you can enlarge certain types of images on your computer without blurring or losing detail, a digital X-ray uses computer software to magnify images while keeping their details sharp. They can also be enhanced through brightness and contrast applications to make details stand out even more.

There is even digital subtraction radiography software available that can be used to compare recent images to older ones, removing (“subtracting”) all the similarities in the two images to display only the changes in the two—even small changes—that have taken place over time.

  • Less Exposure to Radiation

Modern technology means traditional X-rays expose patients to less radiation than ever before, but digital X-rays have significant advantages here as well. Radiation exposure can be reduced by an additional 10%, 20%, or more with a digital radiograph.

And while all types of dental X-rays expose you to very little radiation, it’s always best to reduce exposure whenever possible.

  • More Convenient for Sharing and Transmitting

If you need to share your X-rays with another dentist or physician, digital technology allows you to simply have them e-mailed to another office or multiple offices. You no longer need to worry about preserving physical copies, either.

  • Less Waste

Unlike traditional X-rays, digital X-rays don’t need to be processed, so you save time in the office. And while the processing time is not significant (usually several minutes), if you need to repeat some X-rays for a clearer picture, or require different images for several teeth, this time can add up.

Digital X-rays are also more eco-friendly.  The fact that they don’t need to be developed means that the chemicals used to process traditional films are no longer necessary—which also means that there is no need to dispose of chemical waste products afterward.

Our goal is to provide you with the safest, most efficient, and most effective treatment possible. Digital X-rays are an important tool for orthodontists, helping us to provide you with the best treatment plan possible. If you have any questions about digital X-ray technology, contact our Vancouver, BC office. We’re happy to explain the science—and the benefits—behind this high-tech diagnostic tool.

Tube Talk

February 17th, 2021

The topic is tubes. No, we’re not talking about TV shows, or sports socks, or British subway systems. We’re talking toothpaste! With so many options out there, which toothpaste should you be looking for to keep your teeth their cleanest and healthiest during orthodontic treatment?

  • Fantastic Fluoride

The last thing you want while you’re wearing braces is a cavity. Cavities develop when plaque sticks to a tooth. The oral bacteria found in plaque produce acids that weaken your enamel. Over time, these acid attacks lead to the breakdown of the enamel and a cavity forms. But you have a way to stop this process. Fluoride provides protection against cavities. Fluoride toothpastes contain minerals that actually strengthen your enamel, and can even repair early damage before a cavity has a chance to form. Whichever toothpaste you choose, fluoride is the most important ingredient.

  • Terrific Tartar-Control

What is tartar, anyway? Tartar, or calculus, is hardened plaque. It’s so hard, it can’t be removed by brushing alone—that’s why your dental hygienist uses special tools to remove it when you have a cleaning. Tartar buildup can lead to receding gums and gum disease, so prevent this buildup before it starts by using a toothpaste especially formulated to remove plaque.

  • Desensitizing Decisions

There are many causes for tooth sensitivity. If painful sensitivity is caused by hot or cold drinks, it could mean a dental issue such as decay or a damaged tooth, and your dentist can help diagnose and treat the problem. Sensitivity be a sign that you’re not cleaning around your braces well enough, leading to sore and inflamed gums. Sometimes sensitivity can actually be caused by over-enthusiastic brushing. Remember, massage, don’t scrub! For some extra-sensitive teeth, a desensitizing toothpaste or even a prescription toothpaste can help. If you find that your teeth are more sensitive only after an adjustment, give us a call. This is usually temporary.

  • What about Whitening?

Whitening toothpastes do a good job of taking care of some surface stains, so why not use them? Because they take care of some surface stains. When your braces are in place, your brackets cover a small portion of your enamel—a portion that won’t be whitened as you brush. Generally, because whitening toothpastes don’t make a huge difference in tooth color, this might not be a problem. Talk to Dr. Daniel Ma before you decide to whiten, and we’ll have suggestions just for you.

In fact, if you have any questions about the best toothpastes for orthodontic patients, contact our Vancouver, BC office! Getting your braces is a great step forward on your way to a beautiful smile. Let us help you choose the right toothpaste to make sure that beautiful smile is a healthy and lasting one.

Dental X-rays: The Inside Story

February 3rd, 2021

We’re all friends here, so if you sometimes feel a bit nervous before your orthodontic appointments, no judging! Ask us about any worries you might have. We are happy to explain procedures, equipment, and your orthodontic options so you know exactly what is going on during treatment. 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 called 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 many different types of dental X-rays used in orthodontics, including:

  • 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.
  • Cephalometric X-rays, which show the patient’s entire profile, and the position and development of the 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?

You might have noticed that these X-rays, unlike, for example, typical bitewing X-rays, don’t take images of individual teeth. That is because orthodontists deal with the teeth in relationship to each other and to the structures around them.

Beautifully aligned teeth and a healthy bite are the visible result of your orthodontic work, but there’s a lot going on above and below the surface that needs to be discovered and taken into account before your treatment even begins. X-rays help us evaluate:

  • The size, shape, and position of your teeth, including impacted teeth and wisdom teeth
  • The size, position, and health of your roots throughout treatment
  • The size and shape of your jaw bones, and how they affect your teeth alignment and bite
  • Your progress during different phases of treatment

How Do Orthodontists 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 typical panoramic X-ray provides roughly the same amount of radiation we are exposed to through our natural surroundings in just one day. Even so, Dr. Daniel Ma 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 are changing orthodontists and have had previous orthodontic X-rays taken. Ask to have your older X-rays sent to our office so we have a complete record of your orthodontic history. (With digital X-ray technology, this transfer can be accomplished with e-mail!)
  • 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 orthodontic treatment provides you with a lifetime of beautiful and healthy smiles. If you have any concerns, contact our Vancouver, BC 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!

Heading Off to College? Maybe It’s Time to Graduate to an Electric Toothbrush!

January 27th, 2021

Your trusty manual toothbrush has been with you from pre-school through high school—well, obviously not the same manual toothbrush, because that would be seriously unhygienic—but it’s the kind of toothbrush you’re used to and comfortable with.

Now, though, you’re off to college, and your lifestyle will be changing. Late night study sessions complete with study session snacks. Getting caught up in a project and making dinner from dorm vending machines. Grabbing fast food on the way to the practice field, or work-study job, or evening class. You get the point—meals can be hectic, unscheduled, and less than tooth friendly.

And if you’re wearing braces or aligners, you know you need to keep on top of brushing more than ever. It’s challenging to brush away cavity-causing plaque when it sticks around brackets and wires. And with aligners, teeth don’t benefit as much from the constant cleansing action of saliva, so it’s really important to brush away plaque and food particles before you replace the aligners after eating.

Maybe it’s time to consider an electric toothbrush. After all, anything that can make your life easier and more efficient during busy college days deserves a spot in your dorm room.

  • Electric Brushes Are Effective

The most important reason to switch to an electric toothbrush is its effectiveness. Several studies have shown that regular use of an electric toothbrush leads to a marked reduction in plaque, that bacteria-filled film which sticks to the teeth and leads to cavities and gingivitis. And it’s really no surprise that an electric brush can out-perform a manual brush.

Electric toothbrushes offer several design options, from oscillating/rotating brushes to oscillating/rotating/pulsating models to brushes using sonic vibration technology. What these technologies all have in common is the ability to remove plaque far more efficiently than we can on our own, because electric brushes provide the equivalent of thousands and even tens of thousands of brushstrokes per minute, compared to the hundreds we can achieve by hand.

There might be a bit of a learning curve to discover how to use your brush around wires and brackets. Ask us for the best method of using an electric brush with your braces, and check out brush heads specifically designed for orthodontic work.

If you use buttons with aligners, electric toothbrushes should be safe to gently clean around the buttons to remove built-up plaque. It’s usually best to stick with a manual brush for cleaning your aligners themselves—we’re happy to give you your best cleaning options, no matter which brush you choose.

You know by now what your brushing habits are like. If you tend to be a bit cavalier with your brushing and flossing, make sure you set yourself up for success. Because you have better things to do during semester breaks and summer vacations than visiting Dr. Daniel Ma!

  • Electric Brushes Can Make Life Easier

Several of today’s electric brushes come with options designed to do more than simply remove plaque. They can let you know if you’ve brushed for the recommended two minutes and remind you when it’s time to replace the brush head. They can even alert you if you’re brushing too hard, which is especially important when you’re wearing braces.

Want more from your electric brush? Some models offer apps that can map out just where you’ve brushed, in case there are a few spots that often get overlooked. Or provide different brushing modes for daily cleaning, deep cleaning, whitening, and more. Or come with a travel case that can recharge while you’re busy exploring the world—or going home for a visit.

In the end, it’s up to you. Do some independent study and research the toothbrushes that will give you the best results for your individual brushing habits. You might not need or want a brush with all the technological bells and whistles.

If you’re comfortable with your manual brush and you get good grades when you visit our Vancouver, BC office, stick with it. But if you think you might benefit from the ease and efficiency of an electric toothbrush, if an electric toothbrush makes your teeth and gums healthier and your smile brighter, that’s extra credit worth pursuing.

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