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In Vivo-Ex Vivo Evaluation of the Root ZX3 for Working-Length Determination
Sponsor: Riyadh Elm University
Summary
This study evaluates the accuracy and repeatability of the Root ZX3 electronic apex locator for determining root canal working length in single-rooted permanent teeth requiring extraction. Before extraction, working length is measured clinically using the Root ZX3. Following extraction, cone-beam computed tomography (CBCT) measurements and microscopic actual working length are obtained, with the microscopic measurement serving as the reference standard. The study compares the diagnostic accuracy and agreement of the Root ZX3 with these reference measurements across different pulpal and periapical conditions.
Official title: Accuracy and Precision of the Root ZX3 Electronic Apex Locator for Working-Length Determination in Teeth With Different Pulpal and Periapical Conditions: A Mixed In Vivo-Ex Vivo Diagnostic Accuracy Study
Key Details
Gender
All
Age Range
18 Years - Any
Study Type
INTERVENTIONAL
Enrollment
41
Start Date
2025-10-19
Completion Date
2026-06-30
Last Updated
2026-07-08
Healthy Volunteers
Yes
Conditions
Interventions
Root ZX3 Electronic Apex Locator
The Root ZX3 electronic apex locator was used to determine electronic working length in single-rooted permanent teeth during primary nonsurgical root canal treatment according to the manufacturer's instructions. A size 10 or 15 K-file was advanced within the root canal until the device indicated the apical foramen (red bar), and the working length was recorded using a standardized coronal reference point. Electronic measurements were compared with microscopic actual working length after tooth extraction, which served as the reference standard. Cone-beam computed tomography (CBCT) measurements were also obtained for comparison.
Locations (1)
Abier alhekeir
Riyadh, Riyadh Region, Saudi Arabia