Yes. You can upgrade your DentaPort ZX apex locator by adding the DentaPort ZX OTR module and endodontic motor. This provides you with an intelligent preparation system with the new OTR
function.
The batteries should be replaced soon. At best, replace the batteries as soon as the battery display starts flashing. Replace all three batteries with standard commercial batteries type AA.
The actual apical foramen and the anatomical apex often do not correspond exactly. The actual apical foramen can be located in the direction of the dental crown. The x-ray exposure then shows incorrectly that the file has not reached the apex.