NCT07779148

Brief Summary

The persistent and secondary intraradicular infections are the primary causes of post-treatment disease following endodontic treatment of any tooth. When conventional root canal treatment fails, endodontic retreatment is often the preferred option, as it represents one of the most conservative approaches. Endodontic retreatment involves removing old root canal filling material followed by cleaning, shaping, and refilling the canals. It may be associated with postoperative pain due to periapical tissue irritation and apical extrusion of debris during instrumentation.

Trial Health

77
On Track

Trial Health Score

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

Enrollment
34

participants targeted

Target at P25-P50 for not_applicable

Timeline
11mo left

Started Aug 2026

Geographic Reach
1 country

1 active site

Status
recruiting

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 Progress8%
Aug 2026Aug 2027

Study Start

First participant enrolled

August 1, 2026

Completed
17 days until next milestone

First Submitted

Initial submission to the registry

August 18, 2026

Completed
3 days until next milestone

First Posted

Study publicly available on registry

August 21, 2026

Completed
12 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 1, 2027

Expected
9 days until next milestone

Study Completion

Last participant's last visit for all outcomes

August 10, 2027

Last Updated

August 21, 2026

Status Verified

August 1, 2026

Enrollment Period

1 year

First QC Date

August 18, 2026

Last Update Submit

August 18, 2026

Conditions

Outcome Measures

Primary Outcomes (1)

  • Post Operative Pain

    Assessing the post operative pain measured by a numerical pain rating scale (NRS) where the level of pain will be recorded as follows: 0 reading represents "no pain" ; 1- 3 reading represents "mild pain" ; 4- 6 reading represents "moderate pain" and 7- 10 reading representative sever pain.

    from 6 hours to 48 hours after the procedure

Study Arms (2)

Xp Finisher R file Group

ACTIVE COMPARATOR

About 17 cases suffering from caries then the Caries will be removed with a sterile stone will undergo Xp Shaper R file for irrigation activation during retreatment procedure

Procedure: Xp Finisher R file

Ultrasonic activation Group

ACTIVE COMPARATOR

About 17 cases suffering from caries then the Caries will be removed with a sterile stone will undergo Ultrasonic activation of irrigation activation during retreatment procedure

Procedure: Xp Finisher R file

Interventions

to evaluate the incidence and severity of postoperative pain using a numeric rating scale at 24, 48, and 72 hours and periapical healing via CBCT following retreatment with two different irrigation activation techniques: 1. Xp Finisher R file activation of irrigation. 2. Ultrasonic activation of irrigation.

Also known as: Ultrasonic activation
Ultrasonic activation GroupXp Finisher R file Group

Eligibility Criteria

Age13 Years - 60 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Patients with mature teeth.
  • Patients with failed previous Endo treatment related by periapical periodontitis
  • Single Rooted with single root canal.
  • Patients should be free from any systemic disease that may affect predictable outcome.
  • Patients who agree to the consent and will commit to follow-up period

You may not qualify if:

  • Patients with immature roots.
  • Patients with any systemic disease that may affect normal healing.
  • Patients with swelling.
  • Pregnant females.
  • Patients who could/would not participate in follow-up.
  • Patients with old age.
  • Teeth with periodontal involvement.
  • Teeth with vertical root fractures.
  • Non-restorable teeth

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Dentistery Hospital, Minia University

Minya, Egypt

RECRUITING

MeSH Terms

Conditions

Pulpitis

Condition Hierarchy (Ancestors)

Dental Pulp DiseasesTooth DiseasesStomatognathic Diseases

Study Officials

  • Wael Hussien kamel, M.D

    Professor of Endodontics Head of Endodontic Department,Faculty of Dentistry,Future University

    STUDY CHAIR

Central Study Contacts

Magdy Mohy Eldeen Abdulrazzak, MSC

CONTACT

Wael Hussien kamel, professor

CONTACT

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

August 18, 2026

First Posted

August 21, 2026

Study Start

August 1, 2026

Primary Completion (Estimated)

August 1, 2027

Study Completion (Estimated)

August 10, 2027

Last Updated

August 21, 2026

Record last verified: 2026-08

Locations