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The quad helix applies slow pressure to expand the jaw. The pressure is applied through the widening of the appliance by adjusting the wires. The appliance is usually left in place for a while after the desired expansion is achieved and acts as a retainer.


  • Preformed .036 appliance designed to gently expand and develop the upper arch
  • Can assist in correcting tooth rotations, crown torque, and crown tip
  • Available in 3 sizes and with upper and lower option

Quad Helix

$19.99 Regular Price
$16.99Sale Price
  • 1/pk

  • What is a Quad Helix Appliance?
    A quad helix is an appliance that is used to expand or widen out the upper teeth.  There are several different types of expanders that orthodontists may use, but the quad helix has a few unique features that we’ll cover below.
    One big advantage of a quad helix appliance is that it is “pre-loaded”. This means that it doesn’t require any manual adjustments by the parent or patient, which should give anyone a big sigh of relief. Before the appliance is placed in it is pre-expanded; upon insertion, the orthodontist will compress the appliance and place it on the teeth.  
    Other expander models will require manual adjustment by the parent or the patient. The quad helix makes it easier because it consistently works without patients having to worry about or remember to activate the appliance.

    What does a quad helix do?
    A quad helix is used to correct a few different orthodontic problems. Some of those problems can include:

    • A posterior crossbite
    • Narrow or constricted upper arch
    • Crowding of the upper teeth

    Below we’ll outline how a quad helix helps to correct these specific problems.
    Using a Quad Helix to Correct a Crossbite
    A posterior crossbite can happen when the upper teeth are too narrow compared to the lower teeth. This causes the lower jaw to be “out-of-line” with the upper jaw. In order to close all the way down, one would have to shift the jaw to either the left or the right.

    The individual must shift their jaw to the right causing the lower jaw to be out-of-line with the upper jaw.
    Having a crossbite can cause a few problems, including:

    • Wearing down and damaging the teeth due to an unbalanced bite
    • Asymmetric growth of the jaw due to repeated shifting 
    • Jaw pain and TMJ soreness

    By expanding the upper teeth, any interferences preventing you from biting in the correct position would be removed.
    Using a Quad Helix to Correct a Narrow Upper Arch
    A narrow upper arch can cause both cosmetic and functional problems. A wide smile generally looks more pleasing to the eye, but having a narrow arch can also lead to some airway problems. Individuals with a narrow upper arch generally have less room for their tongue, which can lead to the tongue sitting further back in the mouth than is natural.  
    Having this tongue position may lead to a more constricted airway, decreasing the nasal passageway as you breathe.  This can lead to increased risk of snoring, sleep apnea, and poorer sleep.

    A quad helix, and most any other orthodontic expander, widens the upper arch, creating more tongue space and avoiding the constricted airway problem.

    Using a Quad Helix to Correct Crowding of the Teeth
    Whenever crowding of the teeth occurs, there are a few different options to fix it.  One option is to expand the arches to make more space. There are several methods of expanding the arches, but a quad helix is a tool that orthodontists sometimes use to assist in correcting crowding of the teeth.

    What Problems Can Result From a Quad Helix?
    The quad helix in general has very few complications or problems associated with it. Like anything else involving braces and orthodontics, a quad helix expander does take some getting used to. Expect about a week of mild discomfort, where the appliance may feel bulky and uncomfortable in your mouth. Usually within a week or two every patient adapts and has no further problems or issues.
    One of the most common problems caused by a quad helix is a sore or inflamed tongue. This usually happens because a patient involuntarily pushes against the appliance with their tongue while they are sleeping.  
    But don’t worry – the soreness or inflammation is usually temporary and will go away after about a week. To help reduce inflammation, we recommend rinsing with warm salt water rinses 2 times a day. Rinsing will help to reduce inflammation and swelling.

    Warm salt water rinses help to reduce tongue soreness and inflammation
    To make a warm saltwater rinse, simply get a cup of warm water, and add 1/2 teaspoon of salt to the water. Swish the salt water around in your mouth for about ten to fifteen seconds and then spit it out. Doing these rinses twice a day will help reduce inflammation by killing bacteria in your mouth. If you let the bacteria stay, your tongue will stay inflamed and sore longer and prevent your body from adapting and getting used to the quad helix.

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