NCT07427615

Brief Summary

This randomized clinical trial evaluated the clinical and radiographic outcomes of regenerative endodontic procedures performed using different irrigation activation protocols in immature permanent maxillary anterior teeth. Thirty patients were randomly assigned into three groups according to the use of laser-activated irrigation and number of visits. Clinical and cone beam computed tomographic (CBCT) outcomes were assessed over a 12-month follow-up period.

Trial Health

87
On Track

Trial Health Score

Automated assessment based on enrollment pace, timeline, and geographic reach

Enrollment
30

participants targeted

Target at below P25 for not_applicable

Timeline
Completed

Started Mar 2023

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
completed

Health score is calculated from publicly available data and should be used for screening purposes only.

Trial Relationships

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Study Timeline

Key milestones and dates

Study Start

First participant enrolled

March 1, 2023

Completed
1.8 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

November 29, 2024

Completed
1 year until next milestone

Study Completion

Last participant's last visit for all outcomes

November 29, 2025

Completed
2 months until next milestone

First Submitted

Initial submission to the registry

February 6, 2026

Completed
17 days until next milestone

First Posted

Study publicly available on registry

February 23, 2026

Completed
Last Updated

February 23, 2026

Status Verified

February 1, 2026

Enrollment Period

1.8 years

First QC Date

February 6, 2026

Last Update Submit

February 20, 2026

Conditions

Keywords

Immature permanent teeth

Outcome Measures

Primary Outcomes (1)

  • Clinical Success Rate at 12 Months

    Clinical success defined as the absence of pain, tenderness to percussion, swelling, or sinus tract, assessed through standardized clinical examination. The outcome will be reported as the number and percentage of treated teeth demonstrating clinical success.

    12 months

Secondary Outcomes (4)

  • Change in Root Length Measured by CBCT

    Baseline, 6 months, 12 months

  • Change in Root Canal Width Measured by CBCT

    Baseline, 6 months, 12 months

  • Change in Apical Diameter Measured by CBCT

    Baseline, 6 months, 12 months

  • Change in Periapical Lesion Size Measured by CBCT

    Baseline, 6 months, 12 months

Study Arms (3)

Regenerative endodontic procedures (REPs) without laser activation

ACTIVE COMPARATOR

Regenerative endodontic procedures performed in two visits using sodium hypochlorite irrigation without laser activation.

Procedure: Regenerative Endodontic ProcedureProcedure: Laser-Activated Irrigation

Regenerative endodontic procedures (REPs) with laser activation (two visits)

EXPERIMENTAL

Regenerative endodontic procedures performed in two visits using sodium hypochlorite irrigation with 810-nm diode laser activation.

Procedure: Regenerative Endodontic ProcedureProcedure: Laser-Activated Irrigation

Regenerative endodontic procedures (REPs) with laser activation (single visit)

EXPERIMENTAL

Regenerative endodontic procedures completed in a single visit using sodium hypochlorite irrigation with 810-nm diode laser activation.

Procedure: Regenerative Endodontic Procedure

Interventions

Regenerative endodontic procedure performed using sodium hypochlorite irrigation, intracanal double antibiotic paste, platelet-rich fibrin scaffold, and bioceramic coronal barrier according to a standardized clinical protocol.

Regenerative endodontic procedures (REPs) with laser activation (single visit)Regenerative endodontic procedures (REPs) with laser activation (two visits)Regenerative endodontic procedures (REPs) without laser activation

Irrigation activation using an 810-nm diode laser with a power of 1 W, applied for three cycles of 15 seconds with 15-second intervals, performed 1 mm short of the working length.

Regenerative endodontic procedures (REPs) with laser activation (two visits)Regenerative endodontic procedures (REPs) without laser activation

Eligibility Criteria

Age9 Years - 25 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Non-vital immature permanent maxillary anterior teeth due to trauma or caries
  • Incomplete root formation with apical foramen \> 1 mm
  • Medically healthy patients

You may not qualify if:

  • Allergy to medications used in the study Teeth requiring post and core restorations Periodontal pockets \> 4 mm Apical foramen \< 1 mm Periapical radiolucency \> 10 mm Internal or external root resorption History of major systemic surgeries (e.g., cardiac surgery, kidney transplantation, hemodialysis)

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Outpatient clinic, Department of Endodontics Faculty of Dentistry, Tanta University

Tanta, Gharbia Governorate, Egypt

Location

Study Officials

  • Abeer M Darrag

    Professor of Endodontics

    STUDY DIRECTOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
SPONSOR INVESTIGATOR
PI Title
Assistant Lecturer of Endodontics

Study Record Dates

First Submitted

February 6, 2026

First Posted

February 23, 2026

Study Start

March 1, 2023

Primary Completion

November 29, 2024

Study Completion

November 29, 2025

Last Updated

February 23, 2026

Record last verified: 2026-02

Data Sharing

IPD Sharing
Will not share

Locations