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Related Experiment Video

Updated: Jun 22, 2026

Guided Endodontics: Three-Dimensional Planning and Template-Aided Preparation of Endodontic Access Cavities

Guided Endodontics: Three-Dimensional Planning and Template-Aided Preparation of Endodontic Access Cavities

Published on: May 24, 2022

Apical limit and working length in endodontics.

Stephane Simon¹, Pierre Machtou, Nick Adams

¹University of Birmingham School of Dentistry and University of Paris 7, France.

|June 2, 2009

Summary

This summary is machine-generated.

Accurate working length determination is crucial for successful endodontic treatment. Apex locators are reliable, affordable tools that aid in achieving predictable results in root canal procedures.

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Last Updated: Jun 22, 2026

Guided Endodontics: Three-Dimensional Planning and Template-Aided Preparation of Endodontic Access Cavities

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Published on: May 24, 2022

Dynamic Navigation in Endodontics: Guided Access Cavity Preparation by Means of a Miniaturized Navigation System

Dynamic Navigation in Endodontics: Guided Access Cavity Preparation by Means of a Miniaturized Navigation System

Published on: May 5, 2022

Area of Science:

Endodontics
Dental Technology

Background:

Working length determination is vital for endodontic treatment success.
Inaccurate length determination can lead to treatment failure.
Debate exists regarding the ideal apical extent of root canal preparation.

Purpose of the Study:

To review different approaches to working length determination.
To explain the function and optimal use of apex locators.
To highlight the importance of apex locators in endodontics.

Main Methods:

Literature review of working length determination techniques.
Discussion of apex locator technology and application.
Analysis of clinical opinions on apical preparation limits.

Main Results:

Apex locators are proven reliable for accurate working length determination.
These devices are moderately priced and widely available.
Apex locators are essential for predictable endodontic outcomes.

Conclusions:

Single-radiograph working length determination is empirical.
Apex locators are indispensable tools for establishing accurate working length.
Integrating apex locators improves the quality of endodontic treatment.