Your Cart

Apex Locators

Apex Locators

About Apex Locator

Endodontic therapy is a very common procedure in dental clinics performed by every dentist. The key method for an effective root canal operation is the determination of working length. The distance from the coronal reference point to the apical constriction in the radicular portion is the working length. To determine the working length, various methods are used e.g.

1 – Radiographic Method A K-File is placed inside the canal & an IOPA (Intra Oral Peri Apical) X-Ray is taken of the affected tooth, then the working length is measured manually using a scale. This method shows numerous errors as X-Ray is a 2D image, where Apex is not visible accurately.

2 – Handling Method The dentist calculates if the K file hits the apex with a minimum accuracy of just 42% based on hand sensation and patient pain.

Apex Locator Price List

Type Of Apex LocatorBDD Special PriceMax Price
NSK IPEX II Apex Locator₹40,000/piece
Woodpecker Apex Locator - DPEX V₹8,700/piece

Why Dental Apex Locator is Required?

  • It provides a more accurate reading.
  • No or Minimum errors
  • No chance of over instrumentation that may lead to damage of periapical tissues.
  • No chance of under instrumentation that leads to an insufficient apical section debridement eventually resulting in the failure of endodontic therapy.
  • Reduced risk of perforations or zipping in case of curved canals
  • Less chairside time
  • Easy to use a portable device
  • Decreased patient exposure to X-Ray
  • Increased patient comfort & cooperation. 

Generations of Apex Locators

1st Generation
It is resistance. It measures which oppose direct current or resistance flow. In the presence of pulp, it does not give a precise reading
2nd Generation
It measures that are opposed to alternating current or impedance flow. It shows that at the apical constriction, there is the highest impedance.
3rd Generation
This works on the theory of impedance & frequency. It measures an impedance ratio of two different wave frequencies of electric currents.
4th Generation
To access the distance between the K file and the apical constriction. It consolidates resistance and capacitance measurement. It separately uses each frequency so that the precision can increase. E.g. NSK IPEX II APEX LOCATOR
5th Generation
Modern apex locator with digital readout, graphic illustrations, and audible signal that works accurately with conductive fluids. This generation was created in 2003
6th Generation
This resolves the drawbacks of 4th & 5th generation, which while dealing with wet & dry canals respectively showed low precision

How Does NSK & Woodpecker Apex Locator work?

The root apex has a specific resistance that it offers to the electrical current. This is measured using two terminals, one attached to the lip & the other attached to the K file. The principle behind the locator’s functioning is that once the circuit is done (the file is in contact with the tissue), there is a decrease in current resistance and flow. This event is indicated to warn the operator by a beep, different color code, digital read-out or pointer on the screen.

Points to Achieve Precision Using The Best Apex Locator

  • To prevent any conducting material between the lip hook & K file, cover the K file with EDTA before entering the isolated canal is important.
  • It is recommended to avoid file contact with metallic restorations.
  • Using very loose files in the canal may display swaying results.
  • It is important to prevent salivary contamination
  • Using the best apex locators after complete sodium hypochlorite irrigation & pulp extirpation to increase accuracy as dry canals mays how inappropriate results.

We are imported from renowned International Companies and are sold at decent prices in India. Buy the best NSK & Woodpecker Apex Locator in Endodontic Equipment online, compare prices, check reviews, and then finalize.


Brand: NSK Model: NSK DT with Dpex V
NSK Endomate DT, a highly reliable endodontic motor with auto-reverse function and 6 head angle position of the handpiece for better accessibility.  NSK Endomotor Endomate DT provides efficiency and accuracy in root canal treatment, also it is silent and comfortable for dental practitioners. Because of its ease of use, as well as the excellent visibility and access through the miniature contra-angle attachment, it helps the practitioner to completely focus on the patient..
₹54,960 ₹59,500
Brand: Woodpecker Model: Dpex V
DTE Woodpecker apex locator 6th generation for accurate working length determination irrespective of the tooth type and multi-frequency impedance technology. The use of this highly efficient by the dentist can add on various advantages.Key Features 97.71% accurate than the conventional radiography method. It locates the apical constriction in a 3D structure then the 2D image & also the error in handling method can easily be omitted. 6th generation Woodpecker Apex..
₹8,800 ₹11,500
Showing 1 to 2 of 2 (1 Pages)

Frequently Asked Questions

Apex locator is easy and fast, it is more accurate than the regular radiographic method. It also provides more accurate reading in three dimensions with less chair side time and reduced risk of perforation or over instrumentation.

First the main unit is connected with the measuring wire. One end of the wire is connected to the file clip and the other end is connected to the hook. The hook is engaged in the buccal sulcus of the patient's mouth and the file is attached in the file clip to complete the circuit as the measurement depends on the electrical resistance. Switch on the device and set the measuring distance (0.0 to 0.5). Then insert the file with the file clip inside the canal. The more the file approaches the apex, the sound will change and the color will differ in the display. After it reaches 0.0, the beep sound will be continuous. Then with the stopper the working length can be measured.

Along with a Dpex V apex locator main unit, the following accessories come:

  • Measuring wire – 1 qty.
  • File Clip – 2 qty.
  • Lip Hook – 2 qty.
  • Touch probe – 1 qty.
  • Tester – 1 qty.

To avoid the cross-contamination, the file clip and hook can be sterilized in an autoclave, but the wires can be wiped with medical alcohol.

You have question?
Let's help