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In Vivo-Ex Vivo Evaluation of the Root ZX3 for Working-Length Determination

NCT07689838 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 41

Last updated 2026-07-08

No results posted yet for this study

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.

Conditions

  • Apical Periodontitis
  • Pulp Disease, Dental

Interventions

DEVICE

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.

Sponsors & Collaborators

  • Riyadh Elm University

    lead OTHER

Principal Investigators

  • Abier Fahad Alhekeir · Riyadh Elm University

Study Design

Allocation
NA
Purpose
DIAGNOSTIC
Masking
NONE
Model
SINGLE_GROUP

Eligibility

Min Age
18 Years
Sex
ALL
Healthy Volunteers
Yes

Timeline & Regulatory

Start
2025-10-19
Primary Completion
2026-02-28
Completion
2026-06-30

Countries

  • Saudi Arabia

Study Locations

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Read the full study record

This page highlights key information. For complete eligibility criteria, study locations, investigator contacts, and the full protocol, visit the original record on ClinicalTrials.gov.

View NCT07689838 on ClinicalTrials.gov