Evaluation of the accuracy of working length determination and automatic apical reverse function accuracy of endodontic rotary motor integrated apex locator: an in-vitro study

Authors

  • Nanda Kishore K Vishnu Dental College
  • Madhu Varma K Vishnu Dental College
  • Girija S Sajjan Vishnu Dental College
  • Kalyan Satish R Vishnu Dental College
  • Raheem Md Vishnu Dental College
  • Anitha Viswanadhan Vishnu Dental College

DOI:

https://doi.org/10.37983/IJDM.2020.2101

Keywords:

Automatic apical reverse, Electronic apex locator, Endodontic motor, Working Length

Abstract

Background:

The outcome of a Root canal therapy depends upon complete cleaning of the root canal system without damaging periapical integrity. Accurate determination of working length determination is essential. The development of Endodontic motor integrated apex locators (EALs) for locating canal terminus has been significant innovation in the field of Endodontics.

Aim:

To evaluate the accuracy of Endomotor integrated electronic apex locator in determining the working length before and after cleaning and shaping with Automatic Apical Reverse action set at the "0.5mm" mark.

Methodology:

Forty extracted premolars were decoronated, patency was verified. The actual length of tooth measured and teeth were embedded in alginate and file was advanced. Readings at the apex and 0.5mm short of the apex was recorded using Dentaport ZX (DZ group) and EConnect S (ES group) apex locator. Cleaning and shaping were done with rotary files with Automatic Apical Reverse action set at 0.5mm short of apex and reading recorded as Automatic Apical Reverse Length (AARL), and actual tooth length is measured. The data obtained were statistically analyzed.

Results:

Within the limitations of the study, the EALs readings of the DZ group & ES group provided an acceptable determination of working length within range ± 0.5mm, and AAR function set at 0.5mm mark of Endomotor integrated apex locator (E Connect S) provided an adequate apical limit.

Conclusion:

Under the invitro conditions of this study, both Electronic Apex Locators showed an acceptable determination of working length within range ± 0.5mm from the actual length. The AAR function set at the 0.5mm mark of Econnect S provided an adequate apical limit.

Author Biographies

Nanda Kishore K, Vishnu Dental College

Postgraduate Student, Department of Conservative Dentistry and Endodontics, Vishnu Dental College, Bhimavaram, West Godavari, 534202, Andhra Pradesh, India.

Madhu Varma K, Vishnu Dental College

Professor, Department of Conservative Dentistry and Endodontics, Vishnu Dental College, Bhimavaram, West Godavari, 534202, Andhra Pradesh, India.

Girija S Sajjan, Vishnu Dental College

Professor and Head, Department of Conservative Dentistry and Endodontics, Vishnu Dental College, Bhimavaram, West Godavari, 534202, Andhra Pradesh, India.

Kalyan Satish R, Vishnu Dental College

Professor, Department of Conservative Dentistry and Endodontics, Vishnu Dental College, Bhimavaram, West Godavari, 534202, Andhra Pradesh, India.

Raheem Md, Vishnu Dental College

Postgraduate Student, Department of Conservative Dentistry and Endodontics, Vishnu Dental College, Bhimavaram, West Godavari, 534202, Andhra Pradesh, India.

Anitha Viswanadhan, Vishnu Dental College

Senior Lecturer, Department of Conservative Dentistry and Endodontics, Vishnu Dental College, Bhimavaram, West Godavari, 534202, Andhra Pradesh, India.

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Published

2020-03-09

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Original Articles