Properties and Clinical Performance of Zirconia-based Dental Ceramics

Mahidol University20 enrolled

Overview

The objectives of this study are to determine the clinical performance of zirconia-based dental prostheses and their related properties.

Zirconia has been used in dentistry since 2000 for constructing fixed partial denture. Its advantages are high fracture resistance, excellent biocompatibility, moderate opacity, etc. Because the increase in demand for more esthetic restoration, zirconia becomes more popular for use as a core material for all-ceramic systems. Its properties have been investigated extensively in many in vitro studies. However, clinical performance of zirconia-based restorations would require a period of time before the results can be assessed. Currently, there are not much results regarding clinical performance of zirconia-based prosthesis and more information are required for future research.

Study Type

INTERVENTIONAL

Purpose

TREATMENT

Masking

NONE

Enrollment

Conditions

Dental Restoration Wear

Interventions

ceramic crownOTHER

Zirconia

Eligibility

Sex: ALLMin age: 18 YearsMax age: 60 YearsHealthy volunteers:

Medical Language ↔ Plain English

Inclusion Criteria: * Occlusion: At least 20 remaining teeth for each patient, and at least one posterior endodontically treated tooth with natural opposing teeth * Bruxism: No evidence based on an intraoral exam * Dental history: No evidence of either moderate or severe periodontal disease * Medical history: Good to excellent general health Exclusion Criteria: * Periodontal status: Pocket depth greater than 4 mm * Occlusion: Evidence of bruxism or excessive clenching force, Abutment tooth that opposes a removable partial denture, Abutment teeth for fixed partial dentures, Gingival recession of an abutment tooth more than 1 mm from the cementoenamel junction, Tooth with first or second degree of tooth mobility, Tooth with extensive carious lesions

Locations (2)

Faculty of Dentistry, Mahidol University

Pyathai, Bangkok, Thailand

Faculty of Dentistry, Mahidol University

Bangkok, Thailand

Outcomes

Primary Outcomes

ceramic crown fracture

Time frame: 2 years

Secondary Outcomes

masticatory function

Time frame: 2 years

Data from ClinicalTrials.gov

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