NCT03243357

Brief Summary

In view of the wide variety of mechanized endodontic instrumentation systems, the ideal would be that the choose of this system based on the anatomical characteristics of the canal and the biological precepts. In teeth with lesions, contaminated dentin should be removed. However, in many systems, the manufacturer's approach disregards the fact that in wider root canal, instruments used in the apical third small diameter (less than 0.40 mm) may not touch the walls at the final apical. Therefore, the establishment of the initial apical file (LAI), the first instrument that measures the resistance of the walls in working length, could be a criterion in the choice of which system to use, and how many files work within the root canals after LAI determination. However, there is a lack of studies that demonstrate that LAI determination affects the degree of cleaning achieved, as well as the impact that LAI-based instrumentation may have on microcracks formation, canal transportation, postoperative pain and quality of obturation.In this way, the investigators propose a study in vivo performed, in patients from 8 to 18 years of age, therefore in large root canals. The protocol recommended by the manufacturer will be compared by means of a prospective randomized clinical trial, with the addition of the XP Endo finisher and with the protocol based on the initial apical file evaluating postoperative pain, exacerbation between the sessions, the quality of the obturation and periapical radiolucency repair. Considering that currently performing endodontic treatments using mechanized instruments is taught in undergraduate courses throughout the country, studies of this nature help the execution of a endodontics more critical and effective.

Trial Health

43
At Risk

Trial Health Score

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

Trial has exceeded expected completion date
Enrollment
50

participants targeted

Target at P25-P50 for not_applicable

Timeline
Completed

Started Nov 2017

Typical duration for not_applicable

Geographic Reach
1 country

1 active site

Status
unknown

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

First Submitted

Initial submission to the registry

July 26, 2017

Completed
14 days until next milestone

First Posted

Study publicly available on registry

August 9, 2017

Completed
4 months until next milestone

Study Start

First participant enrolled

November 22, 2017

Completed
2.3 years until next milestone

Primary Completion

Last participant's last visit for primary outcome

March 7, 2020

Completed
8 months until next milestone

Study Completion

Last participant's last visit for all outcomes

November 3, 2020

Completed
Last Updated

May 21, 2019

Status Verified

May 1, 2019

Enrollment Period

2.3 years

First QC Date

July 26, 2017

Last Update Submit

May 18, 2019

Conditions

Keywords

Endodontics, molars, instrumentation, obturation, anatomy

Outcome Measures

Primary Outcomes (1)

  • Pain level

    A Visual Analogue Scale VAS scale will be used for the postoperative pain level. The patients will noted their postoperative pain level according to the VAS scale during the follow-up period.

    7 days

Secondary Outcomes (1)

  • Periapical radiolucence Repair

    6 and 12 months

Study Arms (2)

TF Adaptive (First Apical Binding File)

EXPERIMENTAL

Endodontic treatment(teeth with periapical periodontitis\&radiolucence).Local anesthesia (4%Articaine with1:100,000 epinephrine),isolation with rubber dam\&standard access cavity preparation.Using 2.5 %sodium hypochlorite,canal negotiation,glide path,coronal flaring with Sx(ProTaper),determining working length\&first apical binding file.Intervention: Root canal instrumentation:TF Adaptive system with enlargement of the root canal performed with up to 3 files larger than the diameter of the initial apical file. Irrigation2.5%NaOCl\&EDTA (Ethylenediaminetetraacetic acid)under activation with ultrasound. Irrigation with saline solution and placement of medication based on calcium hydroxide. After 14 days, obturation: gutta-percha\&epoxy resin sealer.

Procedure: TF Adaptive (First Apical Binding File)

TF Adaptive (Control)

OTHER

In the control group,endodontic treatment (teeth with periapical periodontitis\&radiolucence). Local anesthesia(4% Articaine with 1:100,000 epinephrine), isolation with rubber dam\&standard access cavity preparation. Using 2.5 % sodium hypochlorite, canal negotiation, determining working length\&glide path. Root canal instrumentation:TF Adaptive system according to the protocol recommended by the manufacturer.Irrigation 2.5% NaOCl \& EDTA(Ethylenediaminetetraacetic acid)under activation with ultrasound. Irrigation with saline solution and placement of medication based on calcium hydroxide. After 14 days, the canals will be obturated with gutta-percha and epoxy resin sealer.

Procedure: TF Adaptive (Control)

Interventions

Procedure: TF Adaptive System NiTi (Nickel titanium) Endo File System (SybronEndo) The root canal instrumentation will be performed by the TF Adaptive features Adaptive Motion (Elements Motor). Procedure: Instrumentation based on protocol of First Apical Binding File The enlargement of the root canal will be performed with three files larger than the diameter of the previously established initial apical file.

TF Adaptive (First Apical Binding File)

Procedure: TF Adaptive System NiTi (Nickel titanium)Endo File System The root canal instrumentation will be performed by the TF Adaptive features Adaptive Motion (Elements Motor). Procedure: Instrumentation based on manufacturer's protocol The enlargement of the root canal will be performed according to the manufacturer's directions.

Also known as: TF Adaptive (Manufacturer's protocol)
TF Adaptive (Control)

Eligibility Criteria

Age8 Years - 18 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17), Adult (18-64)

You may qualify if:

  • Participants who have in their mandibular or maxillary molar teeth apical periodontitis symptomatic or asymptomatic with apical radiolucence.

You may not qualify if:

  • Patients with medical history compromises outcomes
  • Atresic and root canals
  • Root canals with curvature greater than 30 degrees
  • Previously performed endodontics treatment.

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

Federal University of Uberlandia

Uberlândia, Minas Gerais, 38405-900, Brazil

RECRUITING

MeSH Terms

Conditions

Periapical PeriodontitisBites and Stings

Condition Hierarchy (Ancestors)

Periapical DiseasesJaw DiseasesStomatognathic DiseasesPeriodontal DiseasesMouth DiseasesPeriodontitisPoisoningChemically-Induced DisordersWounds and Injuries

Study Officials

  • Camilla C Gomes Moura, PhD

    Federal University of Uberlandia

    PRINCIPAL INVESTIGATOR

Central Study Contacts

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
DOUBLE
Who Masked
PARTICIPANT, OUTCOMES ASSESSOR
Purpose
TREATMENT
Intervention Model
PARALLEL
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Adjunct Professor of Endodontics of Faculty of Dentistry of Federal University of Uberlandia

Study Record Dates

First Submitted

July 26, 2017

First Posted

August 9, 2017

Study Start

November 22, 2017

Primary Completion

March 7, 2020

Study Completion

November 3, 2020

Last Updated

May 21, 2019

Record last verified: 2019-05

Locations