ClinicalTrials.Veeva

Menu

Stainless Steel Crowns Versus Bulkfill Composite Resin for Restoring Primary Molars After Endodontic Treatment

U

University of Sao Paulo

Status

Completed

Conditions

Dental Caries

Treatments

Procedure: Restoration with Stainless Steel Crowns
Procedure: Restoration using BulkFill CR

Study type

Interventional

Funder types

Other

Identifiers

NCT03186950
ENDOREST

Details and patient eligibility

About

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%.

Full description

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 (made with Guedes-Pinto paste), 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%.

Enrollment

91 patients

Sex

All

Ages

3 to 7 years old

Volunteers

No Healthy Volunteers

Inclusion criteria

  • 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

Exclusion criteria

  • patients that do not fit the inclusion criteria
  • patients whos parents did not sign the assentiment term
  • patients with systemic desease

Trial design

Primary purpose

Treatment

Allocation

Randomized

Interventional model

Parallel Assignment

Masking

None (Open label)

91 participants in 2 patient groups

Restoration with Stainless Steel Crowns
Active Comparator group
Description:
Restoration of the tooth after endodontic treatment using stainless steel crown.
Treatment:
Procedure: Restoration with Stainless Steel Crowns
Restoration using BulkFill CR
Experimental group
Description:
Restoration of the tooth after endodontic treatment using bulkfill composite resin
Treatment:
Procedure: Restoration using BulkFill CR

Trial contacts and locations

1

Loading...

Data sourced from clinicaltrials.gov

Clinical trials

Find clinical trialsTrials by location
© Copyright 2026 Veeva Systems