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Effect of preflaring on Root ZX apex locators
J L Ibarrola1, B L Chapman, J H Howard
1Department of Endodontics, Creighton University School of Dentistry, Omaha, NE 68178, USA.
Journal of Endodontics
|February 25, 2000
Summary
Preflaring dental canals improves the accuracy of the Root ZX apex locator by ensuring files reach the apical foramen. This technique enhances the device's efficacy in endodontic procedures.
Area of Science:
- Endodontics
- Dental Technology
- Diagnostic Instrumentation
Background:
- The Root ZX apex locator is an advanced device for identifying canal terminus using electrical impedance ratios.
- Its accuracy is well-documented, but performance can be hindered by calcifications and dentinal debris.
- Cervical interferences may obstruct file passage to the apical foramen, impacting apex locator function.
Purpose of the Study:
- To investigate if preflaring canals facilitates file access to the apical foramen by removing cervical obstructions.
- To evaluate the impact of preflaring on the performance and accuracy of the Root ZX apex locator.
Main Methods:
- An in vitro study involving 32 root canals divided into two groups.
- Group 1 (control): No canal manipulation before using the Root ZX apex locator.
- Group 2: Canals were preflared to remove cervical interferences before using the Root ZX apex locator.
- Working length files were measured using the Visilog 5 imaging program's linear measurement tool.
Main Results:
- Preflaring significantly improved the ability of working length files to consistently reach the apical foramen (p = 0.015).
- This enhanced file access directly correlated with increased efficacy of the Root ZX apex locator.
Conclusions:
- Preflaring dental canals is an effective method to overcome cervical interferences.
- This technique ensures more reliable file placement at the apical foramen, thereby increasing the accuracy and efficacy of the Root ZX apex locator.