Success of Zirconia and Stainless Steel Crowns for Permanent Molars

Not Applicable

Completed

• Conditions: Dentin, Carious; Caries Active
• Interventions: Device: stainless steel crowns; Device: zirconia crowns

• Registration Number: NCT05049694
• Lead Sponsor: Hacettepe University

Brief 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

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.

Basic Information
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Recruitment & Eligibility
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Study & Design
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Trial Locations

Study Timeline

• Study Start: 2019-08-01
• Study First Submitted: 2021-09-09
• Study First Submitted QC: 2021-09-09
• Study First Posted: 2021-09-20
• Primary Completion: 2022-01-01
• Study Completion: 2022-08-01
• Status Verified: 2023-04
• Last Update Submitted: 2023-04-06
• Last Update Posted: 2023-04-07

Recruitment & Eligibility

• Status: COMPLETED
• Sex: All
• Target Recruitment: 20

Inclusion Criteria

• 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

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Exclusion Criteria

• 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

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Study & Design

• Study Type: INTERVENTIONAL
• Study Design: PARALLEL

Arm && Interventions

Group	Intervention	Description
stainless steel crowns	stainless steel crowns	stainless steel crowns for capping permanent molars with caries
zirconia crowns	zirconia crowns	esthetic crowns for capping permanent molars with caries

Primary Outcome Measures

Name	Time	Method
Number of zirconia and stainless steel crowns that showed successful retention over two years	2 years	Long-term clinical success of zirconia and stainless steel crowns placed on permanent molars

Trial Locations

Locations (1)

Hacettepe University; 🇹🇷 Ankara, Turkey