Fig. 5
![Fig. 5](http://media.springernature.com/full/springer-static/image/art%3A10.1186%2Fs13005-021-00274-2/MediaObjects/13005_2021_274_Fig5_HTML.png)
A. The custom-made titanium Seeger bar. B. The titaium bar screwed on the OT Equator® analogues on the functional cast. The Seeger bar was obtained from castable components: container for cilinder Seeger ring (red color) and castable conector (blue). The white self-extracting Seeger ring is inserted on the Equator abutment before applying the titanium locking screw