Clinical Investigation on Zirconia-ceramic Three-unit Bridges With CAD-on Veneering
This trial is active, not recruiting.
|Condition||three-unit posterior bridges|
|Treatments||cad/cam veneering, manually layered veneering|
|Sponsor||Ivoclar Vivadent AG|
|Start date||January 2010|
|End date||June 2016|
|Trial size||60 participants|
|Trial identifier||NCT02175329, CAD-On|
60 bridge frameworks are CAD/CAM manufactured from zirconia-ceramic; 30 bridges are veneered with CAD/CAM fabricated lithium disilicate ceramic, 30 bridges are manually layered. The goal is to compare clinical survival , biological or technical behaviour of the restorations.
|Endpoint classification||safety/efficacy study|
|Intervention model||parallel assignment|
Number of participants with clinical success
time frame: 2 years
time frame: 1 week, 1 year, 2 years, 3 years, 4 years, 5 years
Male or female participants from 18 years up to 70 years old.
Inclusion Criteria: - single missing posterior tooth with two adjacent posterior teeth - no acute conservative or paradontal treatment need except for the teeth to be treated in the study - sufficient oral hygiene Exclusion Criteria: - known allergies to components - bruxism - missing antagonist tooth - pregnancy or lactation - missing written consent - patients which are not expected to be compliant - severe systemic diseases - untreated carious lesions - untreated parodontitis
|Official title||A Randomized Clinical Trial of 3-unit Posterior Zirconia-ceramic Fixed Dental Prosthesis (FDPs) Veneered With Layered and Milled (CAD-on) Veneering Ceramics|
|Principal investigator||Andreas Bindl, Dr.med.dent.|
|Description||Randomized prospective controlled clinical study with three-unit posterior bridges made of zirconia-ceramic to compare veneering with manually layering or CAD/CAM fabricated lithium disilicate ceramic veneers. The hypothesis is that there is no difference in clinical survival of the restorations and no difference in biological or technical behaviour.|
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