Abstract: An endodontic file having an extended measurement range of 14 mm is provided. The endodontic file comprises a shank, a washer and a handle, the shank having a proximal end, a distal end, a proximal region and a fluted region, the washer slidably located about the proximal region of the shank, wherein the improvement comprises an exposed shank in an annular groove in the handle, the exposed shank and the annular groove being about 1 to about 2 mm wide, such that in use, the exposed shank provides a user an extended depth measuring capability. A method of measuring a root canal depth is also provided.

Abstract: A collapsible sidewall height extender for use with a vehicle having an open storage bed with opposed sidewalls which includes a first horizontal side member and a second horizontal side member. Each of the first horizontal side member and the second horizontal side member have at least one support member with a first end and a second end. The first end of the at least one support member is pivotally secured to the first horizontal side member and the second end of the at least one support member is adapted to be pivotally secured to a respective side wall of a storage bed of a vehicle, such that the first horizontal side member and the second horizontal side member are movable between an operational position and a storage position.