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The electronic toothbrush has undergone several technological advances since the 1960s. Everything from design and bristle motions to rotation, oscillation, and sonic vibration has led to dramatic changes in this necessary tool over time.

Rotation oscillation happens when the head of the toothbrush rotates from one direction to the other. The benefit of powered toothbrushes is that they can produce 50,000 strokes per minute, compared to 300 strokes with a manual toothbrush.

When you’re thinking about brush head size, smaller brush heads are best for hard-to-reach areas and small mouths. Brush heads should be replaced every three to six months as needed. A good way to save money is to designate a brush head for each family member which can be taken on and off a shared base motor.

Having a base motor or rechargeable toothbrush can deliver enough power on a full charge for a week of brushing, which makes it convenient for travel or when life gets busy. Some toothbrushes include audible signals that let you know when to switch the area of your mouth you’re brushing or when a full two minutes has gone by.

Do you have sensitive teeth? Studies have indicated that people tend to apply more pressure on their teeth when they use a manual toothbrush. This makes an electric toothbrush a preferable option if you’re having issues with sensitive teeth or gums.

There are even electric models with pressure sensors that will stop the brush from spinning when you press too hard against your teeth!

Everyone can benefit from having an electric toothbrush. A large handle size can be taken into consideration if a member of the household is young, or has a physical disability or arthritis. They’re even recommended for children in order to maintain good oral hygiene from a young age.

Biofilm is a term used for plaque or debris that builds up in your mouth. If not properly addressed, this can cause serious bacterial infections to your gums and teeth. If you want to remove biofilm in the most efficient way, an automatic toothbrush is the way to go.

When you're ready to make your decision, make sure to consult with Dr. Dennis Johnson at our Columbus, OH office to decide which electric toothbrush is right for you!

It seems like sharks are everywhere these days—on land, sea, and air(waves). A halftime show meme gone viral. A week of summer TV devoted to our favorite apex predators. And who doesn’t have “Baby Shark” playing in their heads all day once they’ve heard it? But are we jumping the shark to discuss this topic in an orthodontic blog?

Not at all! Because today, we’re going to talk about shark teeth—just not the ones you might be expecting.

One of the expected sights when a shark opens its mouth are those rows and rows of shiny shark teeth. Sharks can grow from two to 15 rows of teeth at any one time (and some sharks have even more). This means sharp new teeth are always ready to replace any shark tooth which is lost, broken, or worn out.

An unexpected sight? When children point to their new adult tooth or teeth coming in—right behind their still-firmly rooted baby teeth! This double set of teeth is called “shark teeth,” and, while it certainly might come as a surprise, it’s not all that uncommon. But why do children develop shark teeth at all?

After all, baby, or primary, teeth have small roots, and are designed to come out easily when the adult teeth start arriving. When a permanent tooth starts to erupt, it pushes against the root of the baby tooth above it. This pressure gradually dissolves the root of the primary tooth, and with nothing to anchor it, it’s now loose, wiggly, and ready to fall out. That’s why baby teeth often look like they have no roots at all when they eventually wiggle free.

Sometimes, though, the roots of a primary tooth don’t break down, which means baby teeth stay right where they are. It also means that the permanent teeth have to erupt somewhere else—usually behind those stubborn little baby teeth.

Shark teeth can first appear around the ages of five to seven when the permanent front teeth start arriving, or several years later, when the adult molars begin to come in. Any extra teeth in one small jaw naturally raise concerns about tooth misalignment, especially when those extra teeth are molars. If double molars are causing crowding, it’s a good time for your child to have an orthodontic examination at our Columbus, OH office to make sure the permanent teeth are properly positioned.

Unlike sharks, we don’t have an endless supply of replacement teeth, so it’s understandable to worry when you see anything unexpected. If you want to know more about shark teeth, or if you have any concerns, don’t hesitate to call Dr. Dennis Johnson for expert advice.

Great question! Tooth movement is your body’s natural response to light pressure applied by braces over a period of time (usually two years). Braces work by using brackets that are glued onto your teeth; these brackets have small slots, and that is where Dr. Dennis Johnson and our team insert orthodontic wires. These wires are held in place by small elastic ties that fit around the brackets. As time passes during your treatment, these wires apply pressure on your teeth, which sets in motion the movement of your teeth into their desired positions. Each of your teeth has a different size and shape to them, as do the brackets. Each bracket is custom-made for the particular tooth on which it’s supposed to fit.

Not long ago, orthodontists had stainless steel wires and that was about it. Today, however, we have a number of different high-tech wires at our disposal to move your teeth faster and more comfortably.

When you first get your braces on, the first wire or two will typically be very flexible, but still strong enough to apply a constant force on your teeth. As your teeth straighten out over time, however, Dr. Dennis Johnson will use progressively thicker and firmer wires to help move your teeth in place for an ideal bite.

Every time you visit our office for an adjustment, we will swap out the wires in order to keep putting pressure on your teeth, which is why it’s so important for you to keep your adjustment visits during your treatment. Most adjustment appointments are scheduled four to eight weeks apart to give your teeth time to move.

As for rubber bands and elastics, most of our patients will need to wear elastics or rubber bands at some point during their treatments. These elastics typically go from one or more of the upper braces to one or more of the lower braces, and pull on your teeth to move them in the direction they need to move in order to achieve an optimal bite.

If you have any questions about wires, brackets, or elastics, or have any general questions about your treatment, please give us a call at our Columbus, OH office.

Whenever we bite down, we’re applying force with our jaw muscles. Functional appliances direct these forces to create healthier tooth and jaw alignment. They’re used to help correct bite problems and to encourage symmetrical jaw growth.

Functional appliances aren’t always necessary. Because every child’s teeth and bite are different, orthodontic treatment at our Columbus, OH office is carefully tailored to your child’s individual needs.

• For the child with minor tooth misalignment, traditional braces or aligners might be all that’s needed.
• For the child with a minor malocclusion, or bite problem, an orthodontist might use elastics (rubber bands) to bring teeth into healthy alignment.
• For the child who has a more serious malocclusion, involving both tooth and jaw alignment, an orthodontist might recommend a functional appliance.

A severe Class II malocclusion can be caused when the upper jaw or teeth are positioned too far forward, and/or the lower jaw is too small or positioned too far back. Common Class II malocclusions include:

• Open bite—the front teeth don’t touch when the back teeth bite down, or the back teeth don’t touch when the front teeth close.
• Overbite—some overbite is normal. A deep overbite occurs when the upper teeth significantly overlap the lower teeth.
• Overjet—the upper front teeth protrude further horizontally than they should.

Today’s functional appliances come in a variety of designs to treat Class II malocclusions. They can be fixed or removable. They can be used with or without braces. Some are designed to expand the upper palate to make sure there’s room for all the permanent teeth. What they all do is advance the position of the lower teeth and jaw to create a healthier, more comfortable bite.

Fixed devices are attached to the teeth and meant to be used full-time. These include the Forsus™ device, the Herbst® appliance, and the MARA appliance.

• Forsus Device

This appliance works with braces. A spring coil rod is most often attached to bands on the first molars on the upper jaw. It’s then connected to the arch wire on the lower jaw. Just like elastics—but more effective!—these spring coil rods provide gentle forward pressure that encourages the lower jaw and teeth forward.  

• Herbst Appliance

The Herbst appliance also applies forward pressure to the lower jaw using telescoping rods connecting the upper and lower teeth. The rods expand as the mouth opens, and telescope together as it closes, positioning the lower jaw further forward while the upper jaw is held back. The Herbst can be worn alone or with braces, and can also be used to expand the upper palate.

• MARA Appliance

The MARA (Mandibular Anterior Repositioning Appliance) uses an adjustable “elbow” piece connecting bands on upper and lower molars to guide the lower jaw and teeth forward when the jaw closes.

Removable appliances such as Bionator and Twin Block appliances can also improve Class II malocclusions. They are meant to be worn for a specific number of hours each day, and can be taken out for sports or other activities as needed. Because it’s essential to get all the necessary hours in, removable appliances require commitment!

• Bionators

A bionator is made of wire and acrylic, and it looks a lot like a retainer. The wire fits around the upper front teeth. It’s attached to a smooth piece of acrylic that sits behind the upper teeth and is shaped to guide the lower jaw forward when biting down. The bionator can also be adjusted to expand the upper palate.

• Twin Block Appliance

The twin block appliance uses two separate pieces made of wire and smooth acrylic. Both pieces are modeled to fit precisely over the upper and lower arches. The acrylic “blocks” fit over the biting surfaces of the teeth, working together like a 3D puzzle. When your child bites down, the upper blocks slide into place behind the lower blocks, pushing the lower jaw and teeth forward. The top plate can also be adjusted to expand the upper palate if needed.

Because these appliances are best used while a child’s bones are still growing and developing, dentists and orthodontists recommend an orthodontic evaluation by age seven. Early treatment with a functional appliance can help correct serious bite problems before or together with braces. In some cases, functional appliances may reduce the need for headgear or surgery.

Todays’ orthodontic technology has made functional appliances more comfortable and efficient than ever before. Talk to Dr. Dennis Johnson to discover how an individualized treatment plan and a custom appliance can give your child a healthy bite and a lasting smile.