The Direct Bond Suture design uses direct bond occlusal pads for retention instead of banding 1st bicuspids and 6-year molars -- which not only facilitates movement when a crossbite is present, but (because it covers the buccal cusp tips), prevents tipping from occurring. The bonded bite plane, along with a rigid framework, creates a movement that is mainly orthopedic in nature -- especially suited for those patients who are still in mixed dentition. Besides correcting a crossbite, it has been shown that expansion of the maxilla during the early mixed dentition may lead to a spontaneous correction of other occlusal disharmonies, e.g. expansion of the upper arch in a skeletal Class II can allow the mandible to come forward on its own. Note: When delivering this appliance, make sure to maintain a dry environment. Special instructions (along with all the necessary supplies) can be provided to you through SML Supplies.