Woodpecker / DTE Apex Locator - Ai Pex

Ai-Pex User Manual

Ai-Pex Catalogue

Q1: What does the "APEX" indicator mean on the screen?

A: The "APEX" indicator on the screen shows that the endo file has reached the anatomical apical foramen. To ensure safety, the working length
should be calculated by subtracting 0.5-1mm from this measurement.

Q2: Why should I subtract 0.5-1mm from the apex measurement?

A: This adjustment helps avoid over-instrumentation beyond the apical foramen, which can result in inaccurate work length or harm to the tooth.

Q3: Can I use files of any size for root canals?

A: No, you must use files that are appropriate for the diameter of the root canal. Files that are too small for large canals may cause the device to show unstable readings.

Q4: How do I test the connection of the file clip and measuring wire?

A: Before each use, connect the lip hook to the file clip and check that the connection icon is steady on the LCD screen. If it’s unstable, the file clip or measuring wire may be damaged.

Troubleshooting:

Q5: The device is not powering on. What should I do?

A: Check if the battery is correctly installed or if it needs recharging. Reinstall or recharge as necessary.

Q6: Why is the length of the root canal not being measured?

A: Ensure that the measuring wire is plugged firmly into the socket.
Test the wire connection by linking the lip hook to the file clip. If there is no response, the wire might be damaged.

Q7: Why is the screen showing "OVER" at the start of the measurement?

A: If the screen shows "OVER" before reaching the apical foramen, push the endo needle slightly further into the canal. This can stabilize the signal and give an accurate reading.

Q8: The display is unstable, showing irregular measurements. What could be the issue?

A: Check the following:

Ensure good contact between the lip hook and the oral mucosa.

Clean the tooth surface if blood, saliva, or liquid is causing interference.

Avoid metal crowns or contact with the gums, as this could cause signal irregularities.

 Battery and Power:

Q9: How do I know when to recharge the battery?

A: The device will flash a low battery indicator when it's time to recharge. Always use the original adapter and battery for charging.

Q10: Can I use third-party batteries or adapters?

A: No, using non-original components can result in inaccurate measurements and potentially damage the device.

Q11: What should I do if the charging indicator goes out while charging?

A: Ensure the adapter is correctly connected, and check if the battery is installed properly. If the issue persists, you may need to replace the battery or use a new adapter.

Maintenance and Sterilization:

Q12: Which parts of the device can be autoclaved?

A: The file clip, lip hook, touch probe, and pulp tester probe can be autoclaved under high temperature and pressure. This prevents cross-infection.
However, the main unit and wires should only be cleaned with 75% alcohol.

Q13: How often should I test the device for accuracy?

A: It is recommended to test the device every two weeks using the tester provided. Ensure that the indicating bar stays within ±1 bars away from 0.0 on
the dial.

Pulp Test Mode:

Q14: How do I use the pulp test mode?

A: To use the pulp test function:

Explain the procedure to the patient.

Insert the pulp tester probe and lip hook into the sockets.

Power on the device and switch to pulp test mode.

Apply conductive agent (e.g., toothpaste) to the probe and place it on the middle 1/3 of the tooth.

Measure the value when the patient reacts to the tingling sensation.

Q15: What could cause false-positive results in a pulp test?

A: False positives may occur due to:

The probe touching a metal restoration or gums.

Improper moisture isolation of the tooth.

Liquefied necrotic pulp conducting current to the periapical tissue.

Stress or anxiety causing the patient to signal prematurely.

Q16: What could cause false-negative results in a pulp test?

A: False negatives may be due to:

The patient having used analgesics or narcotics.

Poor contact between the probe and the tooth.

Newly erupted teeth or teeth with calcified root canals.

Trauma to the affected tooth preventing a response.

Installation and Setup:

Q17: How do I connect the Apex Locator to the Endo Motor?

A: Use the USB cable to connect the Apex Locator to the compatible Endo Motor. Once connected, the contra-angle icon will light up, indicating
successful communication between the two devices.

Q18: How do I set the Apical Stop?

A: The Apical Stop can be set between 0.0 and 0.5 by pressing the middle button. The device will beep continuously when the file reaches the Apical
Stop.

Device Care and Precautions:

Q19: Can this device be used by patients with pacemakers?

A: No, this device generates electromagnetic interference and should not be used by patients with pacemakers.

Q20: What should I avoid when using this device?

A: Avoid using the device in environments with electromagnetic interference, as it can affect measurements. Also, ensure the endo file and
file clip do not touch other metal instruments or the gums to prevent inaccurate readings.

Q21: How should I store the device when not in use?

A: If the device will not be used for an extended period, remove the
battery to prevent leakage or damage.