Power chains on braces

Page updated October 14, 2026. Medically reviewed by Dr. Abraham Thomas and Dr. Jennifer Loucks-Buren.

A power chain is a row of connected elastic rings that an orthodontist stretches across several brackets of your braces. It holds the wire in place like regular ties, but pulls the teeth together with more force, most often to close gaps between teeth.

What a power chain is

With regular braces, each bracket has its own tiny elastic tie, called a ligature or o-ring, holding the wire in the bracket slot (AAO). A power chain replaces those single ties with a string of connected rings that links several brackets together (Healthline). The AAO's glossary defines it as interconnected elastic ligatures stretched across multiple teeth, holding the archwire in the brackets, which orthodontists use for some patients at specific times to apply extra force (AAO).

Power chains come on a spool, so the orthodontist cuts the length needed, removes the single ties and stretches the chain over the brackets (Healthline). Like single ties, they come in many colors (Healthline); try combinations on our braces color picker.

How braces and power chains move teeth

Braces work by bone remodeling. Steady pressure on a tooth compresses the bone on one side of the root and stretches it on the other; the body removes bone where it's compressed and builds new bone where it's stretched, so the tooth moves (AAO). Consistent pressure is the key, and as teeth move the orthodontist adjusts the wire, bands and elastics to keep that pressure right (AAO).

The archwire is held to the brackets by ties, small wires, rubber rings, or little doors on self-ligating brackets (AAO). A power chain is one way of doing that job while adding a pull between teeth.

What power chains do

Power chains are stronger than single ligatures, so the orthodontist can put more force on one area when needed (Healthline). Healthline lists these uses (Healthline):

• Closing spaces between teeth, such as after an extraction
• Making the spacing between teeth even
• Aligning crooked teeth
• Rotating teeth
• Correcting the dental midline

They're most often used to close gaps (Healthline). Some teeth can be on a power chain while others keep single ties, so different parts of the mouth get different treatment at the same time (Healthline). More on closing gaps in teeth.

Types of power chain

Power chains vs ties vs rubber bands

Braces use several kinds of elastic, and the names get mixed up:

You never remove a power chain yourself. Elastics are the ones you take out to eat and replace every day; see rubber bands for braces.

Do power chains hurt?

A new or replaced power chain usually goes on at an adjustment visit, and it's normal to feel pain or discomfort afterward, typically for a few days (Healthline). That matches what the AAO says about soreness after any adjustment (AAO). Soft foods, a cold pack, orthodontic wax over anything that rubs, and a pain reliever your orthodontist recommends all help (AAO). Our guide to braces pain covers the full timeline.

How long you wear a power chain

It depends on your treatment plan: some people wear one for several weeks, others for several months (Healthline). The force of a power chain fades over time, because of its type and material, chewing, tooth movement, and the warmth and moisture of your mouth, so the orthodontist replaces it at adjustment visits (Healthline). Those visits are usually every 4 to 12 weeks (AAO), and most people wear braces for 12 to 24 months in total (AAO).

Power chains are used for children and adults alike (Healthline). Whether you need one depends on your teeth and bite, which your orthodontist assesses (Healthline).

Caring for a power chain

The risks of power chains are the same as for braces in general: trapped food leads to plaque, which can inflame the gums and cause tooth decay, and the correction can be lost if you don't wear your retainer afterward (Healthline). Healthline's care routine (Healthline):

• Brush after each meal, or rinse with water if you can't
• Use a soft-bristled toothbrush and brush gently
• Floss, using a floss threader to get under the wire
• Rinse with water or a fluoride rinse after cleaning
• Check the chain in the mirror for breaks or loose spots
• Avoid sticky foods, hard foods such as apples and corn on the cob, and high-sugar foods

See our full list of what you can and can't eat with braces, based on the AAO's guide (AAO).

Sore spots and poking wires

When teeth move, the end of a wire can start to poke. The AAO suggests gently pushing it flat against the tooth with a clean pencil eraser or cotton swab; if that doesn't work, cover the end with orthodontic wax (AAO). For sore spots, rinse with warm salt water (half a teaspoon of salt in 8 ounces of warm water) and choose soft foods (AAO). A small kit at home helps: orthodontic wax, a small mirror, floss or floss threaders and a travel toothbrush (AAO). More on using orthodontic wax.

If your power chain breaks

A power chain can break anywhere along its length, and you'll usually notice while cleaning your teeth. Call your orthodontist promptly, because a broken chain works less well and can affect treatment; replacing it is usually a short office visit (Healthline).

After the gaps close: keeping them closed

Closing a gap is only half the job. Healthline warns that the correction from braces and power chains can be lost if you don't wear your retainer after the braces come off (Healthline), and the AAO explains why: teeth tend to drift back toward where they started once treatment ends (AAO). Most people wear a retainer full time for a few months and then at night indefinitely (AAO). Compare the options on types of retainers.

Questions to ask your orthodontist

• Why do I need a power chain, and which teeth will it move?
• How long will I wear it, and how often will it be changed?
• Will I also need elastics, and how many hours a day?
• What should I do if it breaks between visits?
• Can I choose the color?

Does a power chain cost extra?

We found no published price for power chains on their own; they're applied and replaced at your regular adjustment visits (Healthline). When you get a quote, ask whether all adjustment visits and repairs are included. For the overall price of braces, see metal braces cost or use the braces cost calculator.