In Vivo-Ex Vivo Evaluation of the Root ZX3 for Working-Length Determination (NCT07689838) | Clinical Trial Compass
CompletedNot Applicable
In Vivo-Ex Vivo Evaluation of the Root ZX3 for Working-Length Determination
Saudi Arabia41 participantsStarted 2025-10-19
Plain-language 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.
Who can participate
Age range
18 Years
Sex
ALL
See this in plain English?
AI-rewrites the medical criteria so a patient or caregiver can understand them. Always confirm with the trial site.
Inclusion Criteria:
* \* Adults (≥18 years) requiring extraction of a single-rooted permanent tooth for prosthodontic, periodontal, orthodontic, or non-restorable reasons.
* Tooth requiring primary nonsurgical root canal treatment.
* Fully formed root with a closed apex.
* Ability to provide written informed consent.
Exclusion Criteria:
* Teeth with root resorption (internal or external).
* Teeth with root perforation or previous endodontic treatment.
* Teeth with immature (open) apices.
* Teeth with root fractures.
* Teeth in which apical patency could not be achieved.
* Teeth with no electronic working-length measurement obtained using the Root ZX3.
* Teeth that fractured during extraction, preventing microscopic determination of the actual working length.
Questions worth asking your doctor
Bring these to your next appointment. They're a starting point for a shared conversation — not a sign you qualify or a recommendation to enrol.
1Based on my diagnosis and history, is this trial worth exploring for me — or is there a standard treatment we should try first?
2What does this trial's phase tell us about how much is already known about its safety and benefit?
3What would taking part actually involve for me — visits, tests, time, and travel?
4What are the known and possible risks or side effects I should weigh, and how would they be monitored?
5If this trial isn't the right fit, what other options or trials would you suggest I look into?
Generated to help you prepare — always confirm anything about your own eligibility and care with the study team and your doctor.
Questions for the trial coordinator
The trial coordinator is the person who runs the study day to day. These cover the practical side — logistics, costs, and what taking part would actually mean for your life. The study team confirms whether you meet the criteria; these are questions to ask, not a sign you qualify.
1What does taking part actually involve week to week — how many visits, where, and how long does each one take?
2What costs are covered by the study, and what might I have to pay for myself, including travel, parking, or time off work?
3What happens during screening, and what happens if the study team confirms I don't meet the criteria after those tests?
4Who pays for the scans, blood work, and other tests the trial requires — the study, my insurance, or me?
5How will being in the trial affect my regular care, and will my own doctor stay informed and involved?
6Can I leave the trial at any point if I change my mind, and what would happen to my care if I do?
A starting point for the conversation — always confirm anything about your own eligibility, costs, and care with the study team and your doctor.
What they're measuring
1
Diagnostic accuracy of the Root ZX3 electronic apex locator for working-length determination
Timeframe: during endodontic treatment before tooth extraction