A cleaver way to have torque and intrusion in segemntated orthodontics
Columbus Spring 2,II CASES.
Columbus Spring is an innovative device designed to provide torque and intrusion movements on the front teeth with an easy back molar engagement. The technique, which aims to extend the length between the engagement points and to reduce the friction of its components, requires a second buccal arch (auxiliary arch) at which one or more devices are connected, and once activated, they transfer the movements to the teeth
Step 1
Place the auxiliary arch in the molar gingival tubes , slide the front devices until they meet the vertical slots on front teeth that require the torque movements.
Step 2
Once the first device has reached the correct position, a crimping can stabilize it on the auxiliary arch. After the first device has been positioned permanently, repeat the procedure for the other one.
Step 3
In accordance with the treatment plan, bend the devices’ vertical wire to 20°degrees from the tooth axis to provide torque forces (positive and negative).
In addition bend the auxiliary arch to 10-15° degrees from the bite plane, if, other than torque, an intrusion movement is required.
Insert the arch into the molar tubes and trim the arch and the vertical wires to achieve a good symmetry on both the sides
Step 4
Fix the front devices on the front brackets with ligatures, In this position Columbus Spring transmits the required forces as shown in the picture. The columbus techinique ensures that the wire will not have any contact point , or ligature, or friction with other teeth or with other braces.
