NCT03067337

Brief Summary

Introduction and Research Problem: The aim of this project is to evaluate and compare two full coronal restorations on primary posterior molars over a period of 3, 6 and 12 months in terms of restoration failure, marginal integrity, proximal contact, secondary caries, occlusion and gingival response. The restorations types are Stainless Steel Crowns (SSC) and NuSmile Zirconia Crowns (Nu/ZR). Materials and Methods: Children attending the King Abdulaziz University, Faculty of Dentistry (KAUFD) clinics who need restorations will be screened for inclusion criteria till 120 teeth are recruited (60 teeth for SSC restorations and 60 for Nu/ZR restorations). Split mouth technique will be used to ensure equalizing variables for both groups, each patient will have side restored with SSC and the opposite side will be restored with Nu/ZR crowns. Randomization will be done using Statistical Package for the Social Sciences (SPSS) software version 20.0 (Armonk, New York; International Business Machines Corporation (IBM Corp) for each age group separately with a uniform random variable generation. A simple descriptive statistics will be used for analysis and a T-Tests with Wilcoxon Signed-Rank will be used. Level of significance will be set at (α = 0.05) and level of confidence at (95%).

Trial Health

100
On Track

Trial Health Score

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

Enrollment
120

participants targeted

Target at P50-P75 for not_applicable

Timeline
Completed

Started Aug 2015

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

August 30, 2015

Completed
1 year until next milestone

Primary Completion

Last participant's last visit for primary outcome

August 30, 2016

Completed
4 months until next milestone

Study Completion

Last participant's last visit for all outcomes

December 30, 2016

Completed
23 days until next milestone

First Submitted

Initial submission to the registry

January 22, 2017

Completed
1 month until next milestone

First Posted

Study publicly available on registry

March 1, 2017

Completed
Last Updated

March 1, 2017

Status Verified

February 1, 2017

Enrollment Period

1 year

First QC Date

January 22, 2017

Last Update Submit

February 24, 2017

Conditions

Keywords

Stainless Steel CrownsZirconia CrownsAesthetic restorations

Outcome Measures

Primary Outcomes (3)

  • Gingival health

    This parameter was evaluated using a blunt periodontal probe (Double ended probe Williams 1-2-3-5-7-8-9-10 Goldman Fox Flat) according to the Löe and Silness gingival index \[Löe, 1967\].

    3-month follow-up

  • Plaque index

    This parameter was evaluated using a blunt periodontal probe (Double ended probe Williams 1-2-3-5-7-8-9-10 Goldman Fox Flat) according to the Löe and Silness gingival index \[Löe,1967\].

    3-month follow-up

  • Restoration failure

    This was clinically evaluated with visual assessment of the restoration, according to the US Public Health Service "USPHS", Alpha criteria rating system \[Ryge, 1980\].

    3-month follow-up

Study Arms (2)

Stainless Steel Crowns (Group A)

EXPERIMENTAL

Groups that received Stainless Steel Crowns

Device: Stainless Steel Crown (Group A)

Zirconia crowns (Group B)

EXPERIMENTAL

Groups that received Zirconia crowns

Device: NuSmile Zirconia Crowns (Group B)

Interventions

Full coverage restoration for multi-surface carious teeth

Also known as: Stainless Steel Crown
Stainless Steel Crowns (Group A)

Full coverage restoration for multi-surface carious teeth

Also known as: Zirconia crowns
Zirconia crowns (Group B)

Eligibility Criteria

Age4 Years - 8 Years
Sexall
Healthy VolunteersYes
Age GroupsChild (0-17)

You may qualify if:

  • Age group of 4-8 years
  • Free of any systemic disease
  • Cooperative patient
  • At least two matched bilateral carious primary molars
  • Minimal of two surfaces of caries in the targeted tooth
  • Written consent obtained from the parent/guardian

Contact the study team to confirm eligibility.

Sponsors & Collaborators

MeSH Terms

Conditions

Tooth Diseases

Condition Hierarchy (Ancestors)

Stomatognathic Diseases

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
PhD Student

Study Record Dates

First Submitted

January 22, 2017

First Posted

March 1, 2017

Study Start

August 30, 2015

Primary Completion

August 30, 2016

Study Completion

December 30, 2016

Last Updated

March 1, 2017

Record last verified: 2017-02

Data Sharing

IPD Sharing
Will not share