Toothache and Trauma: A History of the Toothkey Another Key with Notched Bolster (4 slides) Slight modifications altered the functionality of a particular key type. Explore this item in the slideshow below. Click each image to see the full version. Notched Bolster Key Compared to the first, this second key with notched bolster (A147.182) has a less adaptable handle but more adaptable claw. University of the Pacific Permanent Collection, Donor: Maurice J. Owens, DDS Bone Handle Screw Pin The bone handle is fixed to the shaft by a screw pin that, unlike a thumbscrew, inhibits quick repositioning. Slots in Bolster Swivel The swiveling portion, sitting above the bolster body, has slots that allow the claw to be placed quickly in positions of 45 degrees difference. Claw Details The claw tip consists of two crescent-shaped notches and its inner surface is serrated. Jump to: 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17 18
