MedTrace Logo

Effect of Rotary File Number on MB2 Canal Negotiation and Postoperative Pain

NCT07091981 · Status: RECRUITING · Phase: NA · Type: INTERVENTIONAL · Enrollment: 152

Last updated 2025-08-01

No results posted yet for this study

Summary

This randomized controlled clinical trial aims to evaluate the effect of the number of rotary files on working length negotiation and postoperative pain in the second mesiobuccal (MB2) canals of maxillary first molars. Patients are assigned to one of four groups according to the number of rotary files used: single-, two-, three-, or four-file systems. Postoperative pain is assessed on each of the seven consecutive postoperative days (Days 1-7) using a visual analog scale (VAS), and working length negotiation success is recorded during canal instrumentation.

Conditions

  • Postoperative Pain
  • Pulp Necrosis

Interventions

DEVICE

OneCurve Rotary File

A single-file NiTi system (25/.04) operated at 300 rpm and 2.5 Ncm torque. Applied directly to the MB2 canal without prior hand instrumentation.

DEVICE

Perfect Minimally Invasive Kit

Two-file system using 10/.06 Shaper for coronal/middle thirds and 25/.04 Finisher for apical third. Operated at 300 rpm and 2.0-2.5 Ncm torque.

DEVICE

VDW Rotate

Three-file NiTi rotary system (15/.04, 20/.05, 25/.04) used sequentially for coronal, middle, and apical thirds. Applied with brushing-pecking motion in 2-3 mm increments under continuous irrigation. Operated at 300 rpm and 1.8 Ncm torque.

DEVICE

Perfect Advanced Kit

NiTi rotary file system including 10/.07 Opener, 10/.04, 17/.05, and 25/.04 files. Used in crown-down sequence with rpm and torque settings ranging from 250-300 rpm and 2.0-2.5 Ncm. Brushing-pecking motion and continuous irrigation were applied during instrumentation.

Sponsors & Collaborators

  • Mehmet Adıgüzel

    lead OTHER

Study Design

Allocation
RANDOMIZED
Purpose
TREATMENT
Masking
SINGLE
Model
PARALLEL

Eligibility

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

Timeline & Regulatory

Start
2025-06-18
Primary Completion
2025-09-01
Completion
2025-09-05

Countries

  • Turkey (Türkiye)

Study Locations

More Related Trials

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 NCT07091981 on ClinicalTrials.gov