NCT03899129

Brief Summary

The aim of this study was to evaluate the effect of simultaneous length control during root canal preparation on postoperative pain compared with separate working length determination and root canal preparation using electronic apex locator. During preparation of root canals, loss of working length (WL) can lead to instrumentation beyond the predefined apical limit of the preparation. This effect is mainly attributed to straightening of the root canal during instrumentation. Some studies showed, that this kind of over instrumentation as well as under instrumentation can adversely affect the outcome of the endodontic treatment, while it remains uncertain what exactly is the most favorable extent of the apical limit of root canal preparation. Furthermore, all endodontic instruments produce apical extrusion of debris, even when the preparation is kept within the confines of the root canal. Consequently, preparations ending in the periapical tissue will produce a greater amount of debris extrusion that could elicit a neurogenic inflammatory response resulting from an irritation of the periodontal ligament with subsequent postoperative symptomatic apical periodontitis. Therefore, it seems favorable to control the determined WL during root canal preparation to avoid preparations ending in the periapical tissue.

Trial Health

35
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
120

participants targeted

Target at P75+ for not_applicable postoperative-pain

Timeline
Completed

Started Oct 2019

Status
unknown

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

First Submitted

Initial submission to the registry

March 8, 2019

Completed
25 days until next milestone

First Posted

Study publicly available on registry

April 2, 2019

Completed
6 months until next milestone

Study Start

First participant enrolled

October 1, 2019

Completed
7 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

May 1, 2020

Completed
Same day until next milestone

Study Completion

Last participant's last visit for all outcomes

May 1, 2020

Completed
Last Updated

April 2, 2019

Status Verified

March 1, 2019

Enrollment Period

7 months

First QC Date

March 8, 2019

Last Update Submit

March 31, 2019

Conditions

Outcome Measures

Primary Outcomes (1)

  • Postoperative pain after endodontic treatment

    Intensity of postoperative pain will be measured using Visual Analogue scale (VAS) for pain assessment 7 days after the end of endodontic treatment. It uses numerical data: None 0, Mild \<20, Moderate 20-50 and Sever \>50.

    7 days after root canal treatment.

Secondary Outcomes (1)

  • Number of analgesic tablets taken by the patient after endodontic treatment.

    Until 7 days after endodontic treatment.

Study Arms (2)

simultaneous working length control

EXPERIMENTAL

• Using simultaneous working length control during root canal preparation using E-CONNECT S endomotor with integrated apex locator.

Procedure: simultaneous working length control using E-CONNECT S

Root ZX apex locator.

ACTIVE COMPARATOR

Using manual control of the working length by using stoppers during instrumentation (separate length determination and root canal preparation) using Root ZX apex locator.

Procedure: separate length determination and root canal preparation using Root ZX apex locator.

Interventions

E-CONNECT S (Eighteeth medical technology Co., Ltd, china) is an endomotor with integrated apex locator newly introduced in the market with continuous WL measuring function. It contains an optional module for rotary instrumentation, allowing the device to function as a low-speed handpiece, apex locator, or a combination of both. This motor has an attention-grabbing property that when an instrument reaches the predetermined working length, the motor automatically stops the instrumentation. Thus, it can be concluded that automatically stopping instrumentation when the instrument reaches the working length would decrease postoperative pain compared with manually controlling the working length by using stoppers during instrumentation (separate length determination and root canal preparation).

simultaneous working length control

Using manual control of the working length by using stoppers during instrumentation (separate length determination and root canal preparation) using Root ZX apex locator.

Root ZX apex locator.

Eligibility Criteria

Age20 Years - 50 Years
Sexall
Healthy VolunteersNo
Age GroupsAdult (18-64)

You may qualify if:

  • Age between (20-50) years old with symptomatic irreversible pulpitis in permanent mandibular premolar teeth.
  • Systemically- healthy patients (ASA I or II).
  • Patients who agree to attend for recall appointments and provide written consent.

You may not qualify if:

  • Pregnant women and patients with pacemakers.
  • Patients with bruxism or clenching or have taken analgesics during past 24 hours.
  • Moderate or severe marginal periodontitis (i.e. pocket probing \>3 mm).
  • Necrotic pulp, pulp polyp, tooth tender to percussion, preoperative palpation pain, clinical progression into periapical abscess, fistula.
  • Teeth with internal or external resorption, curvatures, open apices, root canal obliteration, perforation, incomplete root formation, teeth previously undergone root canal treatment, absence of opposing tooth to the related tooth or radiographically invisible canals.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Pain, Postoperative

Condition Hierarchy (Ancestors)

Postoperative ComplicationsPathologic ProcessesPathological Conditions, Signs and SymptomsPainNeurologic ManifestationsSigns and Symptoms

Study Officials

  • Aml M moteleb

    Cairo University

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Masking Details
The study will be participant-blind where the participants will not know the intervention done. The applications could not be blinded; however, the statistician will be blinded.
Purpose
PREVENTION
Intervention Model
PARALLEL
Model Details: Type: Two arm, parallel, randomized clinical trial. Allocation ratio: 1:1 Framework: Superiority.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
master degree student, Endodontic department

Study Record Dates

First Submitted

March 8, 2019

First Posted

April 2, 2019

Study Start

October 1, 2019

Primary Completion

May 1, 2020

Study Completion

May 1, 2020

Last Updated

April 2, 2019

Record last verified: 2019-03

Data Sharing

IPD Sharing
Will share

De-identified individual participant data for all primary and secondary outcome measures will be made available

Shared Documents
STUDY PROTOCOL, SAP, ICF, CSR, ANALYTIC CODE
Time Frame
data will be available within 6 months from study completion
Access Criteria
Data access requests will be reviewed by an external independent review panel. Requestors will be required to sign a data access agreement.