Endodontic instruments

An endodontic instrument for preparing an endodontic cavity space, the endodontic instrument comprising:

• a shank configured for attachment to a motor to drive the endodontic instrument about a first axis;
• and
• a body extending from the shank by a length, the body being solid and having:
• (i) a shank end where the body and the shank meet and (ii) a tip end, at least a portion of the body being tapered such that the tip end has a diameter that is less than a diameter of the shank end,
• the body comprising a plurality of transverse cross-sections, at least one of the transverse cross-sections having a center of mass and comprising:
• four sides;
• and
• four corners, wherein each corner of the four corners is at a junction of two adjacent sides of the four sides, wherein the four corners are positioned relative to each other such that lines drawn between each pair of adjacent corners of the four corners results in four lines that have no parallelism nor perpendicularity relative to each other,
• wherein perpendicular distances between an axis passing through the center of mass and two corners of the four corners are equal.