J Morita Root Zx II Apex Locator (Dentaport zx)

J Morita Root Zx II Apex Locator (Dentaport zx)


  • Brand : J-Morita
  • J Morita Root Zx II Apex : Locator (Dentaport zx)

    J Morita Root Zx II Apex Locator (Dentaport zx) - 1 Unit

    $ 1342.00

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J Morita Root Zx II Apex Locator (Dentaport zx)

The J Morita Root ZX II Apex Locator, also known as Dentaport ZX, is a popular electronic device used in dentistry for determining the working length during root canal treatment. It is manufactured by J Morita Corporation, a Japanese company specializing in dental equipment. The Root ZX II Apex Locator uses the principles of electrical resistance to accurately measure the position of the root canal’s apex (the tip of the tooth’s root). It helps dentists determine the exact length of the root canal, which is crucial for successful endodontic treatment. As the world’s best-selling apex locator, Root ZX II has set the industry standard for accuracy and patient safety. Invented in 1992, it was the first unit with the ability to work in wet canals – results are not affected by the presence or absence of blood, other discharges, or electrolytes. Patented technology delivers an impressive accuracy rate of 97.5%*.


  • Dual Frequency Technology: The device uses dual frequency technology, which allows for accurate measurements in various canal conditions, including dry, bleeding, or wet canals. This technology helps to minimize the impact of electrolytes on the accuracy of the measurements.
  • 97.5% Accuracy Rates: The ratio technique used in the instrument provides highly accurate detection of the file’s location. Accuracy is not affected by the presence or absence of blood, other discharges, electrolytes, saline, tap water, or hydrogen peroxide.
  • Clear Color LCD Display: The Root ZX II is equipped with a color LCD display that provides clear and easy-to-read measurement results. The display shows the distance from the file tip to the apex, as well as the file length inside the canal.
  • Automatic Calibration: The apex locator automatically calibrates itself, eliminating the need for manual calibration. This ensures consistent and accurate measurements without the risk of human error.
  • Battery Status Indicator: The Root ZX II has a battery status indicator on the display, allowing the dentist to easily monitor the remaining battery charge and ensure that the device is adequately powered.
  • Multiple Safety Functions: The apex locator incorporates various safety functions to enhance patient safety and prevent accidental damage. These include automatic power-off after several minutes of inactivity and an auto-reverse feature that prevents file breakage if excessive force is applied.
  • Ergonomic Design: The device is designed with ergonomics in mind, ensuring comfortable handling for the dentist during procedures. The lightweight and compact design makes it easy to use and maneuver.
  • Rechargeable Battery: The Root ZX II is powered by a rechargeable battery, providing cordless operation and eliminating the need for frequent battery replacements. The battery can be recharged using the included charging unit.
  • File Clip Attachment: The device comes with a file clip attachment that securely holds the endodontic file in place. This attachment ensures stability during measurements and prevents file slippage.


  • Root Canal Treatment: The device is commonly used during root canal therapy to accurately measure the length of the root canal and determine the appropriate depth for cleaning and shaping the canal.
  • Root Canal Retreatment: In cases where a previous root canal treatment needs to be redone, the apex locator can assist in locating the apical constriction accurately for proper cleaning and obturation.
  • Apex Localization: The device helps locate the apical constriction or apex of the tooth, which is crucial for determining the proper depth for various endodontic procedures.
  • Accurate Measurement: The Root ZX II provides precise measurements, even in challenging clinical situations, such as when the canals are wet, bleeding, or filled with fluids.
  • Minimizing Overextension: By providing accurate measurements, the apex locator helps minimize the risk of overextension of endodontic files or obturation material beyond the apex, which can cause complications.
  • Assessing Canal Patency: The device can be used to confirm canal patency by measuring the distance between the canal orifice and the apical constriction, ensuring proper irrigation and disinfection.

Key Specifications

  • Rating: DC 4.5 V
  • Power Consumption: 0.135 VA
  • Size: 4.13” x 4.13” x 4.53”
  • Weight: approx. 13.05 oz. (370 g)


  • 1 x Root ZX II Canal Measurement Module
  • 1 x Probe Cord,
  • 3 x File Holders
  • 5 x Contrary Electrodes/Lip Clips
  • 1 x Function Tester
  • 3 x AA Batteries

Direction to Use

  • Prepare the tooth: Begin by isolating and preparing the tooth for endodontic treatment. This involves gaining access to the pulp chamber through cavity preparation.
  • Insert the file: Select an appropriate endodontic file and insert it into the root canal. Ensure that the file is properly positioned and reaches the working length.
  • Activate the device: Turn on the Root ZX II Apex Locator by pressing the power button. The color LCD display should light up, indicating that the device is ready for use.
  • Attach the file clip: Attach the file clip to the endodontic file near the handle. The file clip helps hold the file in place during measurement and prevents slippage.
  • Place the file into the canal: Gently guide the file into the canal while keeping it in contact with the tooth structure. Advance the file until the file clip reaches the reference point on the tooth, typically the coronal reference point.
  • Monitor the display: As the file reaches the apical region, observe the color LCD display. It will show the measurement readings, such as the distance from the file tip to the apex and the file length inside the canal.
  • Follow audible and visual indicators: Pay attention to the audible signals and visual indicators provided by the Root ZX II. These indicators will help guide you as you approach the apex. The device will typically emit a continuous beep when the file reaches the apical constriction.
  • Record the working length: Once you have reached the apical constriction, note the measurement reading on the display. This measurement indicates the working length of the root canal.
  • Repeat as necessary: If needed, repeat the process with different files to confirm the working length or to explore additional canals.
  • Clean and disinfect: After obtaining the working length measurement, remove the file from the canal and proceed with the cleaning and shaping of the root canal using appropriate endodontic techniques. Ensure proper irrigation and disinfection of the canal.

J Morita Root Zx II Apex
Locator (Dentaport zx)

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