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Forsus Appliances

A fixed appliance designed to support jaw positioning

Helping the Bite Align Naturally

Is your child or teen unhappy because of an overbite but loathes the idea of headgear? The Forsus™ Fatigue Resistant Device may offer an alternative. This device consists of small rods with coil springs attached to the lower and upper teeth. Forsus appliances work to correct an overbite with no external pieces.


Forsus appliances are available at Trielle Orthodontics in Union and the surrounding area. Forsus is a discreet and low-maintenance alternative to headgear or rubber bands. Call us at (908) 206-4700  to make an appointment.

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Active Appliances

Forsus is an active appliance a patient wears along with braces. Active appliances in orthodontics use force to move teeth to the desired position. While braces work to straighten teeth, Forsus pushes the top teeth back and the bottom teeth forward to correct a patient’s bite.

Active appliances can be either fixed in place (like Forsus) or removable. Other examples of active appliances include:

  • Aligners
  • Braces
  • Elastics
  • Separators
“Active appliances in orthodontics use force to move teeth to the desired position.”

Passive Appliances

After active orthodontic treatment is complete, teeth are not yet settled into position and shift over time. Teeth tend to gravitate to their original position. For this reason, people wear retainers after treatment with braces is complete. A retainer is considered a passive appliance.

The purpose of passive appliances is not to actively move teeth but keep them in their new position. Space maintainers are another example of a passive appliance. These are often used on children to maintain space in the mouth for a permanent tooth to erupt. Passive appliances are typically removable but can be fixed as well.

“The purpose of passive appliances is not to actively move teeth but keep them in their new position.”

Functional Appliances

Forsus is one of the most commonly used functional appliances in orthodontics. Functional appliances use muscle action and jaw movement to place selective pressure on the teeth and jaws. They focus on repositioning or reshaping the upper or lower jaw rather than straightening teeth.

Functional devices are usually removable but can be fixed. Other examples of common functional appliances include headgear and palatal expanders. Functional appliances also treat sleep apnea, migraines, and TMJ pain.

“Functional appliances use muscle action and jaw movement to place selective pressure on the teeth and jaws.”

Benefits of Forsus Appliances

An overbite occurs when the top teeth protrude significantly beyond the bottom teeth. It can give someone a buck-toothed appearance. Forsus appliances focus mainly on fixing excessive overbites in children and adolescents. These appliances are most effective in patients between the age of 10 and 16 when the jaw is still developing.

Treatment of overbites often involves headgear or the use of elastic bands. The trouble with these two methods is that both require a high-level of patient compliance. If patients fail to wear these removable appliances for the recommended amount of time, treatment can be ineffective. Forsus is not removable, so treatment remains constant. Other benefits to wearing Forsus include:

  • Discretion: Forsus appliances are entirely inside the mouth, unlike headgear.
  • Easy Installation: Forsus can be put in place in one appointment.
  • Low Maintenance: The device is easy to clean around, and the patient is not required to adjust anything.
  • Short Treatment Time: Forsus typically works faster than elastic or headgear. Treatment usually takes three to eight months.


“Forsus is not removable, so treatment remains constant.”

Wearing Forsus Appliances

Forsus appliances are associated with minimal discomfort, but it can take a week or two for someone to adjust to them. Patients should brush after every meal, taking special care when cleaning around the springs.

It is important to be careful when eating and avoid hard or sticky foods. These appliances are very durable, but patients should call their dental healthcare professional right away if they break. As with any orthodontic treatment, regular oral checkups are essential to ensure the appliance is in good working order.

“These appliances are very durable, but patients should call their dental healthcare professional right away if they break.”
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Forsus Appliance FAQs

Forsus appliances often raise questions about comfort, wear time, and daily activities. These answers help explain how the appliance supports orthodontic treatment.

When should someone start wearing Forsus?

Forsus appliances are most successful when used on children and teens from age 10 to 16. The appliance is most effective when used while the jaw is still growing. Treatment with Forsus typically starts after a child or teen has been wearing braces for six months to a year.

How long do Forsus appliances take to correct an overbite?

Treatment times can vary depending on the severity of the overbite. The average treatment time can range anywhere from three to eight months. Our team will monitor progress closely to avoid any complications.

How should someone wearing Forsus clean their teeth?

One should brush after eating, in the morning, and before going to bed. Be sure to scrub the Forsus springs as well. Tools such as interdental brushes and floss threaders can help clean hard-to-reach areas.

Is wearing Forsus painful?

There is little pain reported with these devices. There may be some tightness and pressure when opening and closing the mouth as one adjusts to the Forsus. The appliance can sometimes irritate the cheeks, but orthodontic wax can usually remedy this. Discomfort tends to subside about two weeks after placement.

What if the Forsus appliance breaks?

Though Forces appliances are very durable, they can still break. If the device becomes damaged or loose, our team can fix it. Give us a call right away for instructions.

Smile Assessment

A comprehensive evaluation to determine the most appropriate treatment plan.

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Growth Appliances

Devices used to guide jaw growth and development in children.

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Corrective Jaw Surgery

Surgical treatment used in coordination with orthodontics to address jaw alignment.

Learn More

Supporting Bite Correction at the Right Time

Bite alignment plays an important role in long-term oral health and function. Forsus appliances help guide correction while orthodontic treatment is already underway. Schedule an evaluation to learn if this appliance is part of your recommended plan.

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