Effect of Different Apical Motion Algorithms on Postoperative Pain After Root Canal Treatment

Summary

Brief Summary

This prospective, randomized clinical trial aims to evaluate the effect of different endodontic motor settings used during root canal treatment on postoperative pain.

During root canal treatment, the inner part of the tooth is cleaned and shaped using specialized rotating instruments. These instruments can operate with different motion patterns, and the motor may respond differently as the instrument approaches the tip of the root. The influence of these technical variations on postoperative pain has not been clearly established.

Adult participants requiring root canal treatment for mandibular premolar teeth will be enrolled in the study. Participants will be randomly assigned to different groups. In each group, root canal treatment will be performed using different motor motion settings. All procedures applied in this study are routine and safe treatment methods commonly used in clinical endodontic practice.

After treatment, participants' pain levels will be monitored through telephone follow-ups. Pain intensity will be assessed using the Visual Analog Scale (VAS). In addition, analgesic intake will be recorded.

The purpose of this study is to determine whether different endodontic motor settings influence postoperative pain and patient comfort following root canal treatment. The findings are expected to contribute to safer and more comfortable root canal treatment protocols.

Conditions

• Apical Periodontitis
• Postoperative Pain After Endodontic Treatment

Interventions

PROCEDURE

Root Canal Treatment

Standardized primary root canal treatment performed under local anesthesia and rubber dam isolation.

DEVICE

Rotary Instrumentation

Canal preparation performed using continuous rotary motion.

DEVICE

Reciprocating Instrumentation

Canal preparation performed using reciprocating motion.

DEVICE

Auto Apical Stop Mode

Endodontic motor operated with the auto apical stop mode activated.

DEVICE

Auto Apical Reverse Mode

Endodontic motor operated with the auto apical reverse mode activated.

DEVICE

Apical Off Mode

Endodontic motor operated with the apical action mode turned off.

Sponsors & Collaborators

• Alanya Alaaddin Keykubat University

  lead OTHER

Principal Investigators

• Hatice BÜYÜKÖZER ÖZKAN, Associate Professor · Alanya Alaaddin Keykubat University

Study Design

Allocation

RANDOMIZED

Purpose

TREATMENT

Masking

DOUBLE

Model

PARALLEL

Eligibility

Min Age

18 Years

Max Age

70 Years

Sex

ALL

Healthy Volunteers

No

Timeline & Regulatory

Start

2026-07-20

Primary Completion

2027-02-15

Completion

2027-03-15