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Dental X-rays: The Inside Story

April 10th, 2024

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. Cronin 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 Langley 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!

Time to Brush Up on Brushing and Flossing

April 10th, 2024

If your child has just gotten braces, chances are it’s a good time to brush up on dental hygiene! Why now? What’s different? And how can you help? Let’s take a few minutes and explore these timely questions.

Brushing and Flossing Are Especially Important with Braces

There’s no getting around it, it’s harder to clean teeth with brackets and wires. But it’s essential to pay attention to dental hygiene. When bacteria and plaque start building up, your child is at risk for gum disease, cavities, and tooth discoloration.

  • Gingivitis

This early stage of gum disease is the result of gum irritation caused by plaque. The gums become red, swollen, sore, and can bleed or start to recede. With proper brushing and flossing, gingivitis can be eliminated, along with the risk of developing more serious gum disease.

  • Tooth Decay

One of the major reasons for cavities is the erosion of enamel caused by oral bacteria. These bacteria feed on sugars from our diet and produce acids that attack the tooth’s surface. Plaque, formed by a mass of these bacteria, sticks around brackets and the gum line, putting your child at risk for cavities near his orthodontic work—which might require removing wires and brackets to treat.

  • Demineralization

When acids attack teeth, they remove the minerals from our enamel. This demineralization eventually leads to cavities, but in its early stages can cause white spots to appear where the mineral structure has been weakened. Braces wearers are at special risk for demineralization, especially around brackets and near the gums, where plaque can be missed while brushing.

Time for New Brushing and Flossing Techniques

Even if your child has always done a wonderful job of brushing and flossing, braces provide a new challenge for getting teeth their cleanest. Unfortunately, plaque buildup around the brackets and the gum line is all too common in orthodontic patients. Dr. Cronin can recommend some tools that make the cleaning process easier and more effective.

  • Toothbrushes

Manual brushes are available with small, soft-bristled heads designed especially for braces wearers. If your child still has problems getting rid of plaque and food debris, an electric toothbrush might be helpful. And remember, encourage your child to be thorough but gentle for the sake of both braces and gums.

  • Flossing with Braces

Flossing can be challenging for children at any time, but especially with braces. We’ll show you how floss threaders work, and how special flosses designed just for braces can fit under wires. This might also be a good time to invest in a water flosser. Your help demonstrating how to floss even with brackets and wires blocking the way will be appreciated by your child and your dentist!

  • Products Just for Braces

Interproximal brushes are tiny cone-shaped brushes designed to fit around brackets and wires and between teeth. We can also suggest special toothpastes and rinses to help fight plaque and prevent cavities from developing. Ask us about what to shop for to make both of your lives easier.

You Can Help!

  • Teamwork—Works!

When your child first gets braces, practice brushing and flossing together. Our Langley team will be happy to show you both the very best techniques for keeping teeth their cleanest and healthiest. Especially for young children, your help will make sure those techniques are learned and used.

  • Make Time for Cleaning

Your child’s before-braces routine might have meant brushing two minutes each morning and two minutes at night. But thorough cleaning around brackets and wires might take a bit longer. (And, with braces, it’s best to brush after every meal rather than the common twice-a-day routine). Be available, at least at first, for a quick check to make sure braces and teeth are their cleanest. And you may have to help with removing and replacing bands until your child gets the hang of it.

  • Be Prepared!

Whether it’s a day at school or an overnighter with friends, be sure your child has a kit filled with cleaning supplies ready to take along. A toothbrush, floss, an interproximal brush, toothpaste, a mirror—with these necessities, your child can keep on top of any cleaning emergencies.

For younger children especially, learning how to keep teeth and braces their cleanest can take some time. Be patient, be prepared, and be willing to help, and you and your child will have a new routine mastered—in no time at all!

What's the difference between an orthodontist and a dentist?

April 3rd, 2024

Orthodontists and dentists both help patients improve their oral health, but in different ways. Dentistry is a broad medical specialty that deals with the teeth, gum, nerves, and jaw, while orthodontics is a specialty within dentistry that focuses on correcting bites, occlusion, and the straightness of teeth. One important difference is that all orthodontists like Dr. Cronin are dentists, but not all dentists are licensed orthodontists.

How are they similar?

The main similarity between a dentist and orthodontist is that they both focus on oral care. An orthodontist can work in a dental office and provide the same care as a dentist. So in this respect, they are quite similar. They are both considered doctors, and deal with the teeth and gums.

How are they different?

There are more differences than similarities. An orthodontist requires additional schooling as a dental specialty; the situation is similar to a doctor who obtains additional schooling to become a surgeon. Another difference is that orthodontists specialize in helping patients with the alignment of their teeth, improving their bite, or fitting them for corrective braces and devices. If a patient has an overbite, a dentist will refer him or her to an orthodontist.

Dentists typically encourage good oral hygiene and provide services related to:

  • Tooth decay
  • Root canals
  • Gum disease
  • Crowns
  • Bridges
  • Veneers
  • Teeth whitening

Orthodontists are dentists that specialize in the alignment of teeth, and provide services related to:

  • Misaligned teeth
  • Crowded teeth
  • Overbite
  • Underbite

What an orthodontist can help with

Orthodontists help with crooked teeth, but they assist patients with other issues as well. These include overbites and underbites, crossbites, spaces between teeth, overcrowding of teeth, and the treatment of temporomandibular disorders (TMD). Additional problems with the jaw also need to be treated by an orthodontist.

While a dentist may be trained to provide orthodontic care in addition to extractions, TMJ treatments, and fillings, trusting your smile to an orthodontist can better balance the different procedures you require.

To learn more about the difference between dentists and orthodontists, or to schedule an initial consultation with Dr. Cronin, please give our team at Cronin Orthodontics a call at our convenient Langley office.

Snowball Effect

April 3rd, 2024

Winter and its snowball fights are behind us, true, but there might be another kind of snowball heading your way. When you neglect the small steps involved in your everyday orthodontic routines, little problems can start to snowball into bigger ones, affecting your dental health and delaying your orthodontic progress.

Here are three areas where letting the small steps in your routine slide can have consequences:

Dental Hygiene

It can be harder to get your teeth their cleanest while you’re wearing braces. After all, there are wires to get behind and brackets to brush around, and you still need to get that floss in between your teeth. But neglecting your dental hygiene can have big consequences:

  • Demineralization

The bacteria in plaque create acids that strip the minerals from tooth enamel. This process is called demineralization. Wherever plaque is allowed to build up, you’ll start to see white spots in the enamel. This discoloration is a sign that minerals are missing, and is often found around brackets, where it’s harder to brush. White spots can be treated cosmetically, but better to avoid them as much as possible, because eventually they can become . . .

  • Cavities

As demineralization continues, the enamel becomes weaker and weaker, until a hole forms in the tooth—a cavity. Besides damaging your tooth, a cavity can put you behind your orthodontic schedule if you need parts of your braces removed for treatment.

  • Gum Disease

When plaque builds up around the gums, gum tissue becomes inflamed and irritated—this is gingivitis, or early-stage gum disease. Symptoms often include puffy gums, redness, bleeding, and bad breath. Mild gum disease becomes more serious over time, so treat gingivitis early—or, even better, prevent gum disease with careful brushing and flossing.

Looking After Your Appliances

  • Follow Care Instructions

Orthodontic appliances need love, too! Any instructions you get for their care are for a good reason. Brackets can become loose when you bite down on chewy foods. Wires can break when you eat hard candy. Aligners can warp if you leave them on a hot dashboard. If you follow instructions carefully, you won’t need to postpone your progress while you wait for repairs.

  • Use Your Protective Case

If you wear aligners, or a removable appliance, or a retainer, don’t forget to protect these items when you’re not wearing them. This means placing them in their cases, not wrapped in a napkin on your lunch tray, or in the bottom of your gym bag, or anywhere your dog can reach them!

  • Be Proactive If Accidents Happen

Unfortunately, accidents do happen, and loose brackets, broken wires, lost ligatures, and cracked or warped aligners can interrupt orthodontic progress and cause you pain and discomfort. Give our Langley orthodontic office a call to see if minor damage to an appliance can be handled at home, or whether you should be seen before your next regular appointment for repairs.

Following Your Orthodontic Plan

There’s more to following your orthodontic schedule than arriving on time for appointments. Depending on your treatment, you might be responsible for keeping track of the time you spend wearing:

  • Elastics

Elastic bands can be used to help align your upper and lower jaws. If you don’t wear your bands as directed, you won’t make progress as quickly as you could. And remember to replace your elastics as often as recommended, because after hours of s-t-r-e-t-c-h-i-n-g they lose their effectiveness.

  • Aligners

Most aligners are worn for around 22 hours each day. If you don’t follow your orthodontist’s instructions and wear your aligners for the recommend hours each day, your teeth won’t be in the proper alignment when your next set of trays is ready to begin work.

  • Retainers

If you have a retainer and don’t wear it, your teeth will start to shift position. Skip wearing your retainer long enough, and you might need a return to your braces or aligners to repair any new misalignment.

Don’t ignore what seem like little dental and orthodontic responsibilities. Keep up with daily cleaning and brushing, take care of your appliances, and follow your orthodontic plan, and you’ll finish your treatment with a beautiful and healthy smile—right on schedule.