NCT03186950

Brief Summary

The pulp therapy in primary teeth is designed to eliminate the infection and keep the tooth in a functional state until its natural exfoliation. An important step for the success of endodontic therapy is the final restoration, which must seal the tooth, avoiding new contamination. Thus, this study proposes to carry out a randomized clinical trial with longitudinal follow-up of two years, in order to compare the degree of success of endodontic treatment in primary teeth restored with two different techniques: composite resin (Filtek Bulk Fill - 3M ESPE) or stainless steel crowns (3M ESPE). Success will be measured by clinical and radiographic features of primary teeth treated with the different restorations after 1, 6, 12 and 24 months. Among the secondary outcomes that will be assessed are the quality and durability of restorations and the cost benefit of treatments. Patients who seek the university clinics and require endodontic treatment will be invited to participate. The sample unit is the tooth and these will be randomized in groups through a randomization list created and distributed in sequential opaque envelopes. The envelope will be opened only after the end of endodontic treatment, to ensure allocation concealment. The data will be statistically analyzed using the Stata 12.0 (Stata Corporation, College Station, TX, USA). The longevity of the treatments will be evaluated by estimating survival rates using the Kaplan-Meier method. Differences between survival rates according to the type of endodontic proposed treatment will be analyzed using the log-rank test. All other clinical variables will be analized using Cox regression. The significance level for all analyzes will be 5%.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
91

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Jul 2016

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

Click on a node to explore related trials.

Study Timeline

Key milestones and dates

Study Start

First participant enrolled

July 1, 2016

Completed
12 days until next milestone

First Submitted

Initial submission to the registry

July 13, 2016

Completed
11 months until next milestone

First Posted

Study publicly available on registry

June 14, 2017

Completed
17 days until next milestone

Primary Completion

Last participant's last visit for primary outcome

July 1, 2017

Completed
2 years until next milestone

Study Completion

Last participant's last visit for all outcomes

July 10, 2019

Completed
Last Updated

April 7, 2020

Status Verified

April 1, 2020

Enrollment Period

1 year

First QC Date

July 13, 2016

Last Update Submit

April 5, 2020

Conditions

Outcome Measures

Primary Outcomes (2)

  • Endodontic Treatment survival

    The primary outcome will be the success or failure of endodontic treatments evaluated through the tooth permanence in the arcade on clinical and radiographic conditions of normality compared between groups restorations (steel crown or composite). The clinical criteria to determine success are: absence of fistula, absence of painful symptoms, absence of pathological mobility and adequate gingival contour. Radiographically, the success criteria are: absence / reduction of rarefaction and absence / bone thinning in the furcation region later, maintenance of periradicular space, root resorption compatible with eruptive phase and absence of pathological resorption

    12 months

  • Need for new intervention

    It will be assess the need for any type of reintervention, both for the steel crown group and for the composite resin. Thus, our primary outcome will be measured in accordance with the evaluation of restorations, not only by the failure or not endodontic treatment. Clinical sucess: no fistulae or abscess Radiographic sucess: Reduction or maintenance of the interradicular lesion; No crypt breakup

    12 months

Secondary Outcomes (2)

  • Cost-efficacy between the groups

    baseline, 1, 6, 12 and 24 months

  • Acceptance of the treatments

    Baseline

Study Arms (2)

Restoration with Stainless Steel Crowns

ACTIVE COMPARATOR

Restoration of the tooth after endodontic treatment using stainless steel crown.

Procedure: Restoration with Stainless Steel Crowns

Restoration using BulkFill CR

EXPERIMENTAL

Restoration of the tooth after endodontic treatment using bulkfill composite resin

Procedure: Restoration using BulkFill CR

Interventions

After finishing the endodontic treatment with Guedes-Pinto Paste, the restoration of the teeth will be made using Stainless Steel Crowns.

Restoration with Stainless Steel Crowns

After finishing the endodontic treatment with Guedes-Pinto Paste, the restoration of the teeth will be made using BulkFill composite resin

Restoration using BulkFill CR

Eligibility Criteria

Age3 Years - 7 Years
Sexall
Healthy VolunteersNo
Age GroupsChild (0-17)

You may qualify if:

  • Remaining tooth structure and location of the lesion allow rehabilitation
  • Do not have internal or external resorption involving more than 1/3 the length of the root
  • Do not have bone loss in lateral root or crypt disruption
  • With the presence of at least half of the root

You may not qualify if:

  • patients whos parents did not sign the assentiment term
  • patients with systemic desease

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

University of São Paulo - School of Dentistry

São Paulo, 05508-000, Brazil

Location

Related Publications (4)

  • Coll JA, Sadrian R. Predicting pulpectomy success and its relationship to exfoliation and succedaneous dentition. Pediatr Dent. 1996 Jan-Feb;18(1):57-63.

    PMID: 8668572BACKGROUND
  • Garcia-Godoy F. Evaluation of an iodoform paste in root canal therapy for infected primary teeth. ASDC J Dent Child. 1987 Jan-Feb;54(1):30-4.

    PMID: 3468139BACKGROUND
  • Rifkin A. A simple, effective, safe technique for the root canal treatment of abscessed primary teeth. ASDC J Dent Child. 1980 Nov-Dec;47(6):435-41. No abstract available.

    PMID: 6934178BACKGROUND
  • Rifkin A. The root canal treatment of abscessed primary teeth--a three to four year follow-up. ASDC J Dent Child. 1982 Nov-Dec;49(6):428-31. No abstract available.

    PMID: 6960030BACKGROUND

MeSH Terms

Conditions

Dental Caries

Condition Hierarchy (Ancestors)

Tooth DemineralizationTooth DiseasesStomatognathic Diseases

Study Officials

  • Daniela P Raggio, Professor

    University of Sao Paulo

    PRINCIPAL INVESTIGATOR

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
Professor

Study Record Dates

First Submitted

July 13, 2016

First Posted

June 14, 2017

Study Start

July 1, 2016

Primary Completion

July 1, 2017

Study Completion

July 10, 2019

Last Updated

April 7, 2020

Record last verified: 2020-04

Data Sharing

IPD Sharing
Will not share

Locations