The Transverse Appliance effectively widens both upper and lower arches, addressing bilateral crossbites and anterior crowding. Given the force from the screw, robust clasping is advised. For optimal retention, we recommend Adams clasps on the 6’s (if present) and ball clasps between premolars. Additional features include a labial bow for anterior incisor control and a posterior bite plate, enhancing anchorage for the upper appliance.


Appliance Components

  • Select the Transforce expansion component for the best arch fit and secure it.
  • Adjust extension arms to passively fit within the sheaths.


  • Blank Band-UL6/UR6
  • Lingual Sheaths/Pr
  • Transforce Component