Impact of Cross-Sectional Design in Single-File Rotary System on Apical Debris Extrusion
1 other identifier
interventional
30
1 country
1
Brief Summary
Endodontic treatment aims to achieve optimal biological outcomes while minimizing patient's discomfort during and after the procedure. Postoperative pain remains a common complication and is considered a multifactorial phenomenon influenced by several factors, including preoperative pain, age, gender, systemic health, presence of apical periodontitis, instrumentation technique, type and design of endodontic instruments, and the use of intracanal medications.
Trial Health
Trial Health Score
Automated assessment based on enrollment pace, timeline, and geographic reach
participants targeted
Target at below P25 for not_applicable postoperative-pain
Started Jun 2026
1 active site
Health score is calculated from publicly available data and should be used for screening purposes only.
Trial Relationships
Click on a node to explore related trials.
Study Timeline
Key milestones and dates
Study Start
First participant enrolled
June 1, 2026
CompletedFirst Submitted
Initial submission to the registry
September 2, 2026
CompletedFirst Posted
Study publicly available on registry
September 9, 2026
CompletedPrimary Completion
Last participant's last visit for primary outcome
December 20, 2026
ExpectedStudy Completion
Last participant's last visit for all outcomes
December 30, 2026
September 9, 2026
June 1, 2026
7 months
September 2, 2026
September 2, 2026
Conditions
Outcome Measures
Primary Outcomes (1)
Treatment of Postoperative Pain
Pain scores will be recorded on Visual Analog Scale (VAS) using a 0 to 10 pain score basis with 0 being no pain and 10 being the worst pain. Recording will be done everyday for 7 days period.
from 0 hours to 1 week after the procedure
Study Arms (2)
one curve file
ACTIVE COMPARATORAbout 15 cases will be subjected to one single file to the full working length. File will be operated at 300 rpm/2.5 Ncm torque in continuous rotation
AF Fanta flat sided file system
ACTIVE COMPARATORAbout 15 cases will be subjected to one single file to the full working length.File will be operated at 300 rpm/2.5 Ncm torque in continuous rotation
Interventions
to evaluate and compare the amount of apically extruded debris using the AF One single-file rotary system, featuring a flat-sided design, and the One Curve rotary system in curved mesiobuccal canals of mandibular first molars. Additionally, this study aims to assess postoperative pain associated with both systems and to investigate the potential correlation between apical debris extrusion and postoperative pain.
Eligibility Criteria
You may qualify if:
- Teeth with mature apex
- Straight root canal or mild curvature not exceeding(5-10) Schneider.
- Has intact crown ( coronal structure)
- Presence of one orifices and one apices, patency achieved by a #10-15 K-file to the apical foramen
You may not qualify if:
- Previous root canal treatment.
- Internal/external resorption.
- Immature root apices.
- Caries/cracks/fractures on the root surface.
- Root canal curvature more than 10 degrees.
- Teeth in which the apical minor constriction was gauged larger than a size 20 hand file.
Contact the study team to confirm eligibility.
Sponsors & Collaborators
- Minia Universitylead
Study Sites (1)
Endodontics, Faculty of Dentistry, Minia University
Minya, Minya Governorate, Egypt
MeSH Terms
Conditions
Condition Hierarchy (Ancestors)
Study Officials
- STUDY CHAIR
Maged Mohamed Negm, Professor
Endodontics Department, Faculty of Dentistry, Cairo University
Central Study Contacts
Study Design
- Study Type
- interventional
- Phase
- not applicable
- Allocation
- RANDOMIZED
- Masking
- NONE
- Purpose
- TREATMENT
- Intervention Model
- PARALLEL
- Sponsor Type
- OTHER
- Responsible Party
- PRINCIPAL INVESTIGATOR
- PI Title
- Assistant lecturer at Endodontics Department,Faculty of Dentistry
Study Record Dates
First Submitted
September 2, 2026
First Posted
September 9, 2026
Study Start
June 1, 2026
Primary Completion (Estimated)
December 20, 2026
Study Completion (Estimated)
December 30, 2026
Last Updated
September 9, 2026
Record last verified: 2026-06