The K pendulum type DS (Distal Screw) according to Kinzinger
Elements:
Occlusal rests 0.7 mm spring hard, double ending pendulum spring out of 0.8 mm rematitan® SPECIAL with closed loop and mesially open loop
Function:
Extensive straight distal movement through the activation of the distal screw, and therefore, new adaptation of the arc on which the molars are moved distally
Description:
The pendulum springs lay close to the mid palate suture and should be localized as close as possible to the distal part of the molars to be moved
The occlusal rests are placed as usual. The pendulum springs with the closed loop are fixed minimally beneath the distal screw and posterior to the molars which are to be moved. The open part of the U-loop should show mesially. The retentions of the springs have to be located beneath the movable part of the distal screw.
To avoid the contact of the acrylic with the curve of the palate, this part is previously underlaid with wax.
The posterior extension of the appliance, including the springs and the active part of the screw, should not surpass the limit of the hard and soft palate.
