NCT01644630
Completed
Not Applicable
A Randomized Controlled Clinical Trial Comparing Cemented Versus Screw-retained Implant-supported Single Crowns With Customized Zirconia Abutments
ConditionsImplant-supported Single Crowns
Overview
- Phase
- Not Applicable
- Intervention
- Not specified
- Conditions
- Implant-supported Single Crowns
- Sponsor
- University of Zurich
- Enrollment
- 34
- Locations
- 1
- Primary Endpoint
- Marginal bone level
- Status
- Completed
- Last Updated
- 5 years ago
Overview
Brief Summary
The aim of this study is to test whether or not the use of screw-retained implant crowns on customized zirconia abutments results in biological, technical and esthetic outcomes similar to those obtained with cemented all-ceramic crowns on customized zirconia abutments, both made with a computer-aided design and manufacturing procedure (CAD/CAM).
The null-hypotheses is that marginal bone level change is equal at screw-retained and cemented crowns
Investigators
Eligibility Criteria
Inclusion Criteria
- •Single-tooth Straumann Bone Level in the anterior maxilla or mandible
- •At least one adjacent natural tooth present
- •Implant position enabling both screw-retained and cemented crown
- •Informed consent signed
Exclusion Criteria
- •Smoking more than 15 cigarettes a day
- •Poor oral hygiene (Plaque index over 30%)
- •Pregnancy at the date of inclusion
Outcomes
Primary Outcomes
Marginal bone level
Time Frame: 5 years
The bone level represents an indicator of the osseointegration and biological success of the implant.
Secondary Outcomes
- Biological, technical and esthetic outcome(up to 5 years)
Study Sites (1)
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