Ackermann Clip TechniquePREAT Corporation
The Ackermann Clip
A bar clip attachment that allows free movement of the prosthesis. Its applications are for overdentures and implant prosthetics. The principle feature of the Ackermann Clip is that the bar may be adjusted to follow not only the vertical contours of the mucosa, but also the anterior-posterior curvature of the edentulous ridge. The spacer provides for both vertical and rotational free movement of the prosthesis. The clip is fully adjustable and easy to insert and remove.
Wide field of applications, as the bar may be bent in all directions allowing it to exactly follow the contours of the ridge.
The Ackerman may be used for square or curved arches.
Due to its short 3.6mm length, the sleeve may be positioned on the bar even in a deep narrow trough.
No soldering of the clip. The horizontal retention tangs (FIG 2-3) provide firm retention in acrylic and require no additional vertical space. The cylindrical mesial-distal retentions are easily bent to the preferred position prior to processing. There are two different space saving desings. Firm yet resilient support of the prosthesis assured by the elasticity of the riders. Spacer provides for free vertical movement.
Easy path of insertion and removal.
The ackermann clip fits the Round Bar, the Hader Bar, and the small Dolder Bar. The shape of the bar is indicated by the amount of room available, by the shape of the alveolar ridge, and the type of construction.