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Trial record 33 of 119 for:    ZIRCONIUM

Properties and Clinical Performance of Zirconia-based Dental Ceramics

The safety and scientific validity of this study is the responsibility of the study sponsor and investigators. Listing a study does not mean it has been evaluated by the U.S. Federal Government. Read our disclaimer for details. Identifier: NCT00737308
Recruitment Status : Completed
First Posted : August 19, 2008
Last Update Posted : May 15, 2015
Thailand Research Fund
Information provided by (Responsible Party):
Kallaya Suputtamongkol, Mahidol University

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

Condition or disease Intervention/treatment Phase
Dental Restoration Wear Other: ceramic crown Not Applicable

Detailed Description:
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.

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Study Type : Interventional  (Clinical Trial)
Actual Enrollment : 20 participants
Intervention Model: Parallel Assignment
Masking: None (Open Label)
Primary Purpose: Treatment
Official Title: Properties and Clinical Performance of Zirconia-based Dental Ceramics
Study Start Date : June 2008
Actual Primary Completion Date : April 2015
Actual Study Completion Date : April 2015

Resource links provided by the National Library of Medicine

Drug Information available for: Zirconium

Arm Intervention/treatment
Experimental: A
crown for clasp
Other: ceramic crown
Other Name: Zirconia

Primary Outcome Measures :
  1. ceramic crown fracture [ Time Frame: 2 years ]

Secondary Outcome Measures :
  1. masticatory function [ Time Frame: 2 years ]

Information from the National Library of Medicine

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Ages Eligible for Study:   18 Years to 60 Years   (Adult)
Sexes Eligible for Study:   All
Accepts Healthy Volunteers:   Yes

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

Information from the National Library of Medicine

To learn more about this study, you or your doctor may contact the study research staff using the contact information provided by the sponsor.

Please refer to this study by its identifier (NCT number): NCT00737308

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Faculty of Dentistry, Mahidol University
Pyathai, Bangkok, Thailand, 10400
Faculty of Dentistry, Mahidol University
Bangkok, Thailand, 10400
Sponsors and Collaborators
Mahidol University
Thailand Research Fund
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Principal Investigator: Kallaya Suputtamongkol Mahidol University

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Responsible Party: Kallaya Suputtamongkol, Assistant Professor, Mahidol University Identifier: NCT00737308     History of Changes
Other Study ID Numbers: MRG5180145
First Posted: August 19, 2008    Key Record Dates
Last Update Posted: May 15, 2015
Last Verified: May 2015
Keywords provided by Kallaya Suputtamongkol, Mahidol University: