Central Orthodontic Associates

Jodi Parker DDS
Linda Krebs DDS Phd
Benjamin Roth DMD

Creating a positive change one smile at at time

100 Whalon St. | Fitchburg, MA 01420 | 978-345-6911

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Braces Diagram

Elastic Tie

Small rubber band that is hooked between different points on the appliance to provide pressure to move the teeth.

Loop in Archwire

Frequently used for closing space left by an extraction. Many archwires don't have a loop.

Archwire

The main wire that acts as a track to guide the teeth along. It's changed periodically throughout treatment, as teeth move to their new positions.

Bracket

Small attachment that holds the archwire in place. Most often, a bracket is cemented directly onto the tooth's surface, eliminating the need for a band.

Headgear Tube

Round, hollow attachment on the back bands. The inner bow of the headgear fits into it.

Coil Spring

Fits between brackets and over archwire to open space between teeth.

Tie Wire

Fine wire that is twisted around the bracket to hold the archwire in place.

Band

A thin ring of metal fitted around a tooth and cemented in place. The band provides a way to attach the brackets to the tooth.

Hook

Welded or removable arm to which elastics (rubber bands) are attached.

Elastic (Rubber Band)

Small rubber band that is hooked between different points on the appliance to provide pressure to move the teeth.

Oral Care Video

Palatal Expander

The palatal expander "expands" (or widens) your upper jaw by putting gentle pressure on your upper molars each time an adjustment is made. The animation below will instruct you about when and how to adjust your expander. When you achieve the desired expansion, you will wear the appliance for several months to solidify the expansion and to prevent regression.

Step 1

In a well-lit area tip the patient's head back.

Step 2

Place the key in the hole until it is firmly in place.

Step 3

Pushing the key towards the back of the mouth, you will notice the fender will rotate and the new hole will appear. The rotation stops when the key meets the back of the expander.

Step 4

By pushing back and down towards the tongue, remove the key. The next hole for insertion of the key should now be visible.

palatal expanderView palatal expander animation »

Printable Instructions »

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