How does the Cantilever Bite Jumper work?
The CBJ appliance consists of four crowns—one for every corner molar. There’s a stainless steel sleeve fitted to the two upper crowns, and often an expander for jaw widening, as well.
A rod slides into the sleeve coming from the upper crown and attaching to the two lower crowns. These sleeves and rods stabilise the lower jaw to improve a poor bite. Once the lower jaw grows into a new position, we can remove the appliance.
The CBJ appliance stays in the mouth for approximately 12 months.
Some may have an additional expander screw in the middle of the upper palate, which helps create space for crowded teeth. The patient's parent will need to turn the screw using a key-shaped tool once or twice a day.