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Caries ActiveNCT05049694

Success of Zirconia and Stainless Steel Crowns for Permanent Molars

A study testing zirconia crowns and stainless steel crowns in people with Caries Active and Dentin, Carious, run by Hacettepe University at 1 site in Turkey (Türkiye).

Completed

Finished. The study has ended and is not enrolling. Results may be posted on the official record.

Official record
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Trial summary

The purpose of this study is to evaluate and compare the clinical and radiographic performance of zirconia and stainless steel crowns on permanent molar Read more about this study

Who is it for?
Ages 6 to 13 yearsHealthy volunteers can take part
Conditions the study is for
Caries Active, Dentin, Carious
What is being tested?
zirconia crowns and stainless steel crowns
Type of treatment
Medical device
Could I receive a placebo?
No, everyone receives an active treatment
How many people
20 participants
Where
1 siteTurkey (Türkiye)
Study dates
1 Aug 2019to 1 Aug 2022
Phase
Interventional
Are there results?
None posted in the registry

Key requirements

Who can take part, as listed by the sponsor. Only the study team can confirm whether you are eligible, so take this list to your doctor.

  • Ages 6 to 13 years
  • All sexes
  • Healthy volunteers accepted
  • Child

Who may be able to join

  • Patients and parent of the patients who accept to participate and sign the informed consent
  • Patients who have at least two permanent molars with caries that require crown restoration
  • Patients that have good cooperation to the procedure

Who cannot join

  • Patients and parent of the patients who don't accept to participate and sign the informed consent
  • Teeth that doesn't have opposing permanent molars
  • Patients who have bruxism or deep-bite
  • Patient who are allergic to nickel

Trial locations and contacts

1 site in 1 country.

Turkey (Türkiye)1 site
  • Hacettepe University

    Ankara, 06100

Other trials in Turkey (Türkiye)

About this study

Official title: Clinical and Radiographic Performance of Preformed Zirconia Crowns and Stainless-Steel Crowns in Permanent First Molars: 18-Month Results of a Prospective, Randomized Trial

The purpose of this study is to evaluate and compare the clinical and radiographic performance of zirconia and stainless steel crowns on permanent molar

Read the detailed description

Zirconia and stainless steel crowns will be placed on at least two permanent molars, in a split mouth design. 100 patients will be included in the study. The teeth will be randomized into two groups according to the crown type.

Group 1: Zirconia crown 2: Stainless steel crown. Plaque index, gingival index, crown retention, presence of restoration failure, gingival margin extension and pulpal health of the teeth will be clinically evaluated at baseline and 1., 6., 12., 18., 24. months. The restorations will be evaluated radiographically at 6., 12. and 18. months. Intra-oral photos will be taken directly after treatment and at control appointments.

The data will be analysed statistically using Fisher's Exact Test and pearson's chi-square test; and Log-rank and the Kaplan-Meier will be used to estimate survival percentages.

Being tested
zirconia crowns, stainless steel crowns
Keywords
zirconia crowns, stainless steel crowns, dental caries
Medical subject headings
Dental Caries

What participants receive

What participants receive. In a randomised study each person is assigned to one group by chance.

  • zirconia crownsDevice

    esthetic crowns for capping permanent molars with caries

  • stainless steel crownsDevice

    stainless steel crowns for capping permanent molars with caries

Study groups in NCT05049694
Study groupRoleWhat they receive
zirconia crownsExperimentalesthetic crowns for capping permanent molars with caries
Receives: Device: zirconia crowns
stainless steel crownsExperimentalstainless steel crowns for capping permanent molars with caries
Receives: Device: stainless steel crowns

What is being measured

The primary outcome is the main question the study is designed to answer.

  1. Number of zirconia and stainless steel crowns that showed successful retention over two years

    Long-term clinical success of zirconia and stainless steel crowns placed on permanent molars

    Measured: 2 years

Timeline

From the start of the study to its completion; the mark is today. Estimated dates are the sponsor’s plan.

  1. First posted20 Sep 2021
  2. Study start1 Aug 2019
  3. Primary completion1 Jan 2022
  4. Study completion1 Aug 2022

Resources

More details

For doctors and researchers: how the study is designed, who runs it, and its registry IDs.

Study design
Study type
Interventional
Phase
Phase N/A
Primary purpose
Treatment
Allocation
Randomised
Intervention model
Parallel groups
Masking
None (open label)
Enrolment
20 participants (actual)
IDs, dates and publications
ClinicalTrials.gov ID
NCT05049694
Sponsor's protocol ID
posterior permanent crown rest
Status last verified
Apr 2023
First submitted
9 Sep 2021
Last updated
7 Apr 2023
Results posted
No
Data monitoring committee
No
FDA-regulated drug
No
FDA-regulated device
No

Publications

  • Geduk N, Ozdemir M, Erbas Unverdi G, Ballikaya E, Cehreli ZC. Clinical and radiographic performance of preformed zirconia crowns and stainless-steel crowns in permanent first molars: 18-month results of a prospective, randomized trial. BMC Oral Health. 2023 Nov 3;23(1):828. doi: 10.1186/s12903-023-03501-1.

    PubMed 37924021

Questions about this trial

What is this clinical trial studying?

A study testing zirconia crowns and stainless steel crowns in people with Caries Active and Dentin, Carious, run by Hacettepe University at 1 site in Turkey (Türkiye).

The full registered description is in the About this study section and the official record.

Who may be eligible to take part?

The sponsor lists 3 inclusion and 4 exclusion criteria. Eligibility is decided by the study team after screening, so read the full criteria and contact a listed site.

Is this clinical trial currently recruiting?

The record says: finished, as of the sponsor's last update on 7 Apr 2023. Status can change between updates, so confirm with the study contact before making plans.

Where is the study taking place?

The record lists 1 site in Turkey (Türkiye). Whether a site is taking part right now should be confirmed with that site. See every site.

What are the possible benefits and risks?

They depend on the study and the treatment, and no study can promise a benefit. The study team explains the known risks during informed consent, before anyone joins; the record itself does not list them.

Are results available for this study?

The study is completed, but results are not available in the source record. That does not mean the treatment did or did not work.

How can a doctor refer a patient or contact the research team?

The record lists no contact. The official record names the sponsor, who can be asked directly. AzTrials does not enrol participants or take referrals.

What does the primary outcome measure?

Number of zirconia and stainless steel crowns that showed successful retention over two years (time frame: 2 years). It is what the study was designed to measure, not a finding.

Where can I read the original study information?

On the ClinicalTrials.gov record for NCT05049694, which also lists 1 linked publication.

Does a listing mean the treatment is approved or proven to work?

No. A listing means the study is registered. It does not show that the treatment is safe, works, or is approved by a regulator.

How often is this information updated?

AzTrials copies changed records from ClinicalTrials.gov every night and reloads the whole registry every week. The sponsor last updated this record on 7 Apr 2023.

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