NCT03453658

Brief Summary

Mechanized instrumentation systems stand out amongst various devices used in modern Endodontics. Its use in Pediatric Dentistry, its action in primary teeth, has been in the center of many discussions and laboratory studies. Nevertheless, up to now, a lack of clinical studies on this issue can be found. Our objective is to conduct a double blinded, 2 years follow up clinical trial to compare the success of endodontic treatment in primary teeth using mechanized reciprocating instrumentation to the use of manual instrumentation.

Trial Health

87
On Track

Trial Health Score

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

Enrollment
151

participants targeted

Target at P75+ for not_applicable

Timeline
Completed

Started Nov 2017

Longer than P75 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

November 8, 2017

Completed
4 months until next milestone

First Submitted

Initial submission to the registry

February 27, 2018

Completed
6 days until next milestone

First Posted

Study publicly available on registry

March 5, 2018

Completed
6 months until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 31, 2018

Completed
2.4 years until next milestone

Study Completion

Last participant's last visit for all outcomes

January 28, 2021

Completed
Last Updated

March 24, 2021

Status Verified

March 1, 2021

Enrollment Period

10 months

First QC Date

February 27, 2018

Last Update Submit

March 23, 2021

Conditions

Keywords

EndodonticsPrimary TeethReciprocating instrumentationMechanized instrumentation

Outcome Measures

Primary Outcomes (1)

  • Success or failure of endodontic treatment

    The success or failure of endodontic treatments evaluated by the time spent in the tooth arch in clinical conditions of normality. Clinical criteria for determining success are: absence of fistula, absence of painful symptoms and pathological absence of adequate mobility and gingival contour. Radiographically, the success criteria are: absence / reduction of periapical bone rarefaction in anterior and absence / bone rarefaction in the furcation area of later, maintaining the periradicular space, root resorption compatible with the eruptive phase and absence of pathological bone resorption. To evaluate the reduction of lesions or appearance of new lesions will be between the initial and follow-up radiographs. Radiographs will be scanned and the end of the bone rarefactions starting area and will be measured on a software image analysis.

    Two years

Secondary Outcomes (4)

  • Appointment duration

    After treatment

  • Quality of obturation provided by two different instrumentation techniques

    After treatment

  • Discomfort related to each instrumentation technique

    After treatment.

  • Cost-Efficacy of each instrumentation technique

    Two years

Study Arms (2)

Manual instrumentation

ACTIVE COMPARATOR

Manual instrumentation: Endodontic treatment will be performed with the use of conventional endodontic manual files.

Procedure: Manual instrumentation

Reciprocating instrumentation

EXPERIMENTAL

Mechanized instrumentation: Endodontic treatment will be performed with the use of reciprocating mechanized files. The files are activated by an engine that produces reciprocating movements.

Procedure: Reciprocating Instrumentation

Interventions

Manual conventional files will be used in endodontic treatment of primary teeth

Manual instrumentation

Reciprocating files system will be used in endodontic treatment of primary teeth.

Reciprocating instrumentation

Eligibility Criteria

Age3 Years - 9 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

  • Primary molar teeth with necessity of endodontic treatment.
  • Patients whose parents or guardians consent to their participation in the study

You may not qualify if:

  • Teeth presenting one of the following:
  • Resorption of more than 2/3 of the root
  • Destruction of the crypt of the permanent successor
  • Pulp chamber floor drilling.
  • Presence of internal resorption

Contact the study team to confirm eligibility.

Sponsors & Collaborators

Study Sites (1)

School of Dentistry, University of Sao Paulo

São Paulo, 05508-000, Brazil

Location

Related Publications (19)

  • Ahmad IA, Pani SC. Accuracy of electronic apex locators in primary teeth: a meta-analysis. Int Endod J. 2015 Mar;48(3):298-307. doi: 10.1111/iej.12315. Epub 2014 Jun 28.

    PMID: 24863852BACKGROUND
  • Ahmed HM. Anatomical challenges, electronic working length determination and current developments in root canal preparation of primary molar teeth. Int Endod J. 2013 Nov;46(11):1011-22. doi: 10.1111/iej.12134. Epub 2013 May 25.

    PMID: 23711096BACKGROUND
  • Canoglu H, Tekcicek MU, Cehreli ZC. Comparison of conventional, rotary, and ultrasonic preparation, different final irrigation regimens, and 2 sealers in primary molar root canal therapy. Pediatr Dent. 2006 Nov-Dec;28(6):518-23.

    PMID: 17249433BACKGROUND
  • Fumes AC, Sousa-Neto MD, Leoni GB, Versiani MA, da Silva LA, da Silva RA, Consolaro A. Root canal morphology of primary molars: a micro-computed tomography study. Eur Arch Paediatr Dent. 2014 Oct;15(5):317-26. doi: 10.1007/s40368-014-0117-0. Epub 2014 Feb 22.

    PMID: 24563173BACKGROUND
  • Kummer TR, Calvo MC, Cordeiro MM, de Sousa Vieira R, de Carvalho Rocha MJ. Ex vivo study of manual and rotary instrumentation techniques in human primary teeth. Oral Surg Oral Med Oral Pathol Oral Radiol Endod. 2008 Apr;105(4):e84-92. doi: 10.1016/j.tripleo.2007.12.008.

    PMID: 18329573BACKGROUND
  • Fuks AB. Pulp therapy for the primary and young permanent dentitions. Dent Clin North Am. 2000 Jul;44(3):571-96, vii.

    PMID: 10925773BACKGROUND
  • Lee GH, McGrath C, Yiu CK. Developing clinical practice guidelines for caries prevention and management for pre-school children through the ADAPTE process and Delphi consensus. Health Res Policy Syst. 2016 Jun 14;14(1):44. doi: 10.1186/s12961-016-0117-0.

    PMID: 27301382BACKGROUND
  • Moura-Netto C, Palo RM, Pinto LF, Mello-Moura AC, Daltoe G, Wilhelmsen NS. CT study of the performance of reciprocating and oscillatory motions in flattened root canal areas. Braz Oral Res. 2015;29:1-6. doi: 10.1590/1807-3107bor-2015.vol29.0006. Epub 2014 Dec 2.

    PMID: 25466329BACKGROUND
  • Nagaratna PJ, Shashikiran ND, Subbareddy VV. In vitro comparison of NiTi rotary instruments and stainless steel hand instruments in root canal preparations of primary and permanent molar. J Indian Soc Pedod Prev Dent. 2006 Dec;24(4):186-91. doi: 10.4103/0970-4388.28075.

    PMID: 17183182BACKGROUND
  • Neena IE, Ananthraj A, Praveen P, Karthik V, Rani P. Comparison of digital radiography and apex locator with the conventional method in root length determination of primary teeth. J Indian Soc Pedod Prev Dent. 2011 Oct-Dec;29(4):300-4. doi: 10.4103/0970-4388.86371.

    PMID: 22016313BACKGROUND
  • Nobrega DF, Fernandez CE, Del Bel Cury AA, Tenuta LM, Cury JA. Frequency of Fluoride Dentifrice Use and Caries Lesions Inhibition and Repair. Caries Res. 2016;50(2):133-40. doi: 10.1159/000444223. Epub 2016 Mar 19.

    PMID: 26992247BACKGROUND
  • Pinheiro SL, Araujo G, Bincelli I, Cunha R, Bueno C. Evaluation of cleaning capacity and instrumentation time of manual, hybrid and rotary instrumentation techniques in primary molars. Int Endod J. 2012 Apr;45(4):379-85. doi: 10.1111/j.1365-2591.2011.01987.x. Epub 2011 Dec 22.

    PMID: 22188162BACKGROUND
  • Piovesan C, Mendes FM, Ferreira FV, Guedes RS, Ardenghi TM. Socioeconomic inequalities in the distribution of dental caries in Brazilian preschool children. J Public Health Dent. 2010 Fall;70(4):319-26. doi: 10.1111/j.1752-7325.2010.00191.x.

    PMID: 20735719BACKGROUND
  • Prabhakar AR, Yavagal C, Dixit K, Naik SV. Reciprocating vs Rotary Instrumentation in Pediatric Endodontics: Cone Beam Computed Tomographic Analysis of Deciduous Root Canals using Two Single-file Systems. Int J Clin Pediatr Dent. 2016 Jan-Mar;9(1):45-9. doi: 10.5005/jp-journals-10005-1332. Epub 2016 Apr 22.

    PMID: 27274155BACKGROUND
  • Rasquin LC, de Carvalho FB, Lima RK. In vitro evaluation of root canal preparation using oscillatory and rotary systems in flattened root canals. J Appl Oral Sci. 2007 Feb;15(1):65-9. doi: 10.1590/s1678-77572007000100014.

    PMID: 19089103BACKGROUND
  • George S, Anandaraj S, Issac JS, John SA, Harris A. Rotary endodontics in primary teeth - A review. Saudi Dent J. 2016 Jan;28(1):12-7. doi: 10.1016/j.sdentj.2015.08.004. Epub 2015 Nov 22.

    PMID: 26792964BACKGROUND
  • Srinivasan V, Patchett CL, Waterhouse PJ. Is there life after Buckley's Formocresol? Part I -- a narrative review of alternative interventions and materials. Int J Paediatr Dent. 2006 Mar;16(2):117-27. doi: 10.1111/j.1365-263X.2006.00688.x.

    PMID: 16430526BACKGROUND
  • Waterhouse PJ, Nunn JH, Whitworth JM, Soames JV. Primary molar pulp therapy--histological evaluation of failure. Int J Paediatr Dent. 2000 Dec;10(4):313-21. doi: 10.1046/j.1365-263x.2000.00211.x.

    PMID: 11310245BACKGROUND
  • Tomlinson D, von Baeyer CL, Stinson JN, Sung L. A systematic review of faces scales for the self-report of pain intensity in children. Pediatrics. 2010 Nov;126(5):e1168-98. doi: 10.1542/peds.2010-1609. Epub 2010 Oct 4.

    PMID: 20921070BACKGROUND

Study Officials

  • Renata Marques, PhD Student

    University of Sao Paulo

    PRINCIPAL INVESTIGATOR

Study Design

Study Type
interventional
Phase
not applicable
Allocation
RANDOMIZED
Masking
SINGLE
Who Masked
OUTCOMES ASSESSOR
Masking Details
The outcomes assessor will be a different examiner who will be unaware of the allocated group.
Purpose
TREATMENT
Intervention Model
PARALLEL
Model Details: Randomized, single-blind, controlled clinical trial with two parallel arms.
Sponsor Type
OTHER
Responsible Party
PRINCIPAL INVESTIGATOR
PI Title
Associate professor

Study Record Dates

First Submitted

February 27, 2018

First Posted

March 5, 2018

Study Start

November 8, 2017

Primary Completion

August 31, 2018

Study Completion

January 28, 2021

Last Updated

March 24, 2021

Record last verified: 2021-03

Locations