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Working length determination in general dental practice: a randomised controlled trial.

F D Jarad¹, S Albadri, C Gamble

¹School of Dentistry, University of Liverpool, Pembroke Place, Liverpool, L3 5PS, UK. f.jarad@liverpool.ac.uk

British Dental Journal

|December 24, 2011

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Apex locators and traditional radiographs showed similar effectiveness in determining root canal working length in general dental practice. Further large-scale trials are needed to confirm these findings.

Area of Science:

Endodontics
Dental Technology

Background:

Accurate working length determination is crucial for successful root canal treatment.
Traditional periapical radiographs have been the standard for assessing working length.

Purpose of the Study:

To compare the efficacy of electronic apex locators versus conventional radiographs for determining root canal working length in general dental settings.

Main Methods:

A randomized controlled clinical trial was conducted in general dental practices.
Root canal treatments utilized either an apex locator (AL) or periapical radiographs (PA) for working length determination.
Master cone acceptability on pre-obturation radiographs served as the primary outcome measure.

Main Results:

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Twenty-one of 23 (91.3%) root canal fillings were acceptable in the apex locator group.

Seventeen of 23 (73.9%) root canal fillings were acceptable in the periapical radiograph group.

The difference in acceptability between the two groups was not statistically significant.

Conclusions:

Apex locators, when used with a master cone radiograph, demonstrated comparable effectiveness to conventional radiography for working length determination in general dental practice.
Larger clinical trials are recommended to further validate these findings and explore the potential benefits of apex locators.