Apex locator attachment

An apex locator attachment for electrically coupling different dental instruments to an apex locator comprising:

• an electrode comprising an electrically conductive material that includes a first portion and a second portion;
• and
• an insulating overmold which at least partly covers the electrode;
• wherein the first portion includes a clamping element with a spring back mechanism that clamps or hooks the apex locator attachment to the different dental instruments for root canal measurement,
• wherein the second portion is constructed as a jack-style connector or constructed to receive a jack-style connector for connection to an electrical connector of the apex locator,
• wherein the apex locator attachment is configured to determine a position of an apical foramen to measure a length of a root canal during endodontic treatment,
• and
• wherein:
• (i) the first portion of the electrode includes a plurality of openings for clamping different shaft diameters of the dental instruments, or
• (ii) a plastic portion of a finger exposes at least a portion of the electrode and includes a plurality of notches for receiving and clamping different sizes of the dental instruments, or
• (iii) a cantilevered projection extends to the electrode and includes a plurality of notches, the cantilevered projection constructed to spring back to hold the different dental instruments.