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Effect of Integrated Apex Locator Motor Modes on Postoperative Pain in Endodontic Retreatment

NCT07527897 · Status: COMPLETED · Phase: NA · Type: INTERVENTIONAL · Enrollment: 144

Last updated 2026-04-14

No results posted yet for this study

Summary

This randomized controlled clinical trial aimed to evaluate the effect of different integrated electronic apex locator (EAL) modes on postoperative pain following nonsurgical endodontic retreatment. A total of 144 patients requiring retreatment of mandibular premolar teeth with periapical lesions were randomly assigned to four groups.

In the control group, working length was determined using a conventional electronic apex locator. In the experimental groups, an integrated EAL motor was used with three different modes: apical reverse, apical slow down, and apical stop.

All procedures were performed under standardized conditions. Postoperative pain was assessed using a numeric rating scale (NRS) at 6 and 12 hours and on days 1, 2, 3, 5, and 7 after treatment.

The study aimed to determine whether simultaneous working length control using integrated EAL modes influences postoperative pain compared with conventional working length determination.

Conditions

  • Apical Periodontitis
  • Postoperative Pain
  • Endodontic Retreatment

Interventions

DEVICE

Electronic Apex Locator

Working length was determined using a conventional electronic apex locator (Root ZX Mini). The measurement was confirmed radiographically, and endodontic retreatment procedures were completed under standardized clinical conditions.

DEVICE

Integrated Apex Locator Motor

Working length determination and canal instrumentation were performed simultaneously using an integrated electronic apex locator motor (Ai Motor, Motopex, Woodpecker). The device operates with different apical control modes, including apical reverse, apical slow down, and apical stop, which automatically respond when the file reaches the predefined working length.

Sponsors & Collaborators

  • Recep Tayyip Erdogan University

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
DOUBLE
Model
PARALLEL

Eligibility

Min Age
18 Years
Max Age
65 Years
Sex
ALL
Healthy Volunteers
No

Timeline & Regulatory

Start
2025-08-13
Primary Completion
2025-10-10
Completion
2025-10-17

Countries

  • Turkey (Türkiye)

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 NCT07527897 on ClinicalTrials.gov