Apparatuses and methods for displaying the position of a dental file during endodontic treatment

An apparatus for providing an image depicting a representation of a dental file positioned in a root of a tooth, the apparatus comprising:

• at least one processor configured to read out and execute instructions stored in at least one memory to thereby cause the apparatus to function as:
• a receiving unit configured to receive (i) data showing morphology of the tooth, and (ii) a three-dimensional representation of a dental file and the tooth;
• a file position determining unit configured to determine from the three-dimensional representation a length that the dental file extends from an upper surface of the tooth;
• and
• an image generation unit configured to provide a representation of the dental file in an image of the tooth, with the representation of the dental file being depicted in the image such that a part of the representation of the dental file extends from the upper surface of the tooth in proportion to the length that the dental file extends from the upper surface of the tooth as determined from the three-dimensional representation and such that a remaining part of the representation of the dental file extends into the tooth, with a part of the remaining part of the representation of the dental file being positioned in the root of the tooth.