B.A. International BA OPTIMA E+ BAE380R, Instructions For Use Manual

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Apex Locator Troubleshooting
This guide is suitable for the users who use B.A. International’s apex
locator for the first time, and those who get unstable readout because of
improper operation.
Problems Possible Causes Analysis Solutions
No readouts
or unstable
readouts
File clip File clip wire broken or poor contact Replace the file clip
Measuring wire Measuring wire broken or poor contact
Poor contact between measuring wire and
socket
Replace the measuring wire
Make sure of proper contact between socket and measuring wire
Root canal problem Endo file is too small for a large root canal
The root canal is rinsed by pure water
Root canal is blocked by dentin chippings or
residual pulp
Root canal is blocked by gum
Root canal is too dry
Use the endo file with larger diameter
Rinse root canal with saline solution
Remove the dentin chippings or residual pulp
Remove the gum
Moist the root canal with saline solution.
Metal prosthesis Metal prosthesis Avoid endo file touching metal prosthesis
Lip hook Poor contact between lip hook and measuring
wire socket
Reconnect the lip hook or replace lip hook
The screen
displays that
endo file reaches
apical foramen
before the endo
file actually does
Endo file Endo file hasn't actually got into root canal Keep pushing endo file near to apical foramen, screen display will become normal
Metal prosthesis Flush fluid touches the metal prosthesis of dental
crown
Endo file touches metal prosthesis
Reduce flush fluid, avoid contacting metal prosthesis
Avoid endo file touching metal prosthesis
Dental crown
problem
Blood oozes out to dental crown
Dental crown is broken or gum hyperplasia
Completely stop bleeding and clean the blood
Insulate the endo file and dental crown with insulator or cut off the gum hyperplasia
Pulp cavity problem Root canal is cracked
There are residue, metal residue or debri in pulp
cavity
Combine X-ray film to get the length
Remove residue, metal residue and debris
Perforation Endodontic perforation Repair perforation
Cavity problem Proximal caries Clean necrotic tissue of the proximal caries, if it's the same with adjacent dental
surface and periodontium, temporarily fill the adjacent surface
Handing method
shows that endo
file reaches
apical foramen,
but apex locator
shows it hasn't
File clip Poor contact in file clip wire Replace file clip
Root canal problem The root canal is rinsed by pure water
Root canal is too dry
There's ledge in root canal(without X ray film)
There are gums and dental debris
Rinse root canal with saline solution
Moist the root canal with saline solution
With help of X ray film, avoid touching ledge with endo file
Remove the gutta-percha or debris and moist the root canal