Historically, Class II Correction often required wearing headgear for several hours daily or surgical procedures. Other early products functioned completely inside the mouth but required multiple appointments for installation or could become ineffective in a short amount of time.
The Forsus Fatigue Resistant Device is 3M Unitek’s innovation, and it may be placed in a single appointment. Its components are a telescoping spring on a small metal extension to provide light, continuous pressure on the teeth. The length of time that the Forsus Appliance is worn varies, depending on the level of correction needed for each case. Forsus also works with the existing braces and wires for simultaneous correction of the malocclusion.
In most cases of Class II malocclusions, the improper bite is caused by a lower jaw that is too far back in relationship to the rest of the face. When the patient is still growing, it is possible to accelerate the growth of the lower jaw to catch up with the upper part of the face by using the MARA (Mandibular Advancement Repositioning Appliance). The MARA is a functional appliance because it postures the patient’s lower jaw in a forward direction. Over a period of months this forward posture of the lower jaw usually promotes growth in the same direction. MARA can work in conjunction with braces for simultaneous correction of the malocclusion.
Elastics (Rubber Bands)
Wearing elastics (or rubber bands) improves the fit of your upper and lower teeth. Wear rubber bands as instructed and remember that the rubber bands work far more efficiently if they're worn as prescribed.
Headgear is used to treat patients whose teeth are in an overbite, with the upper jaw forward of the lower jaw or an "underbite" with the lower jaw forward of the upper jaw. Headgear gently "pulls" on your teeth to restrict further forward growth of your upper teeth and jaw.
The palatal expander "expands" (or widens) your upper jaw by putting gentle pressure on your upper molars each time an adjustment is made. Your orthodontist 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.
Positioners complete the final tooth movements in your orthodontic treatment. With your full cooperation, you should only need to wear the positioner appliance for 4-8 weeks.
Retainers may be removable or fixed. They hold your teeth in their new, correct positions after your teeth have been straightened. Your orthodontist will instruct you on how to care for your retainer and about the duration of the wear. Wearing your retainer as directed is crucial to prevent regression of your treatment.
Separators or Spacers
Separators are little rubber doughnuts that may be placed between your teeth to push them apart so that orthodontic bands may be placed during your next appointment. The separators will be removed before we place the bands. Separators do not mix well with sticky foods, toothpicks or floss.
TADs (Temporary Anchorage Devices)
A temporary anchorage device (TAD) is a device that is temporarily fixed to bone for the purpose of enhancing orthodontic anchorage which is subsequently removed after use. The mini screw system used for anchorage gives the orthodontist another tool to approach a most difficult problem confronting us on a daily clinical basis.