N/A
Completed N=12
Basic Study of Fabricating Biomorphic Crowns
Dental Crown · Prosthesis
Source: ClinicalTrials.gov NCT02609178 ↗
Enrolled (actual)
12
Serious AEs
—
Results posted
Aug 2016
Primary outcomePrimary: △OT Value — 0.07; 0.13; 0.22 seconds — p=0.003
Summary
The purpose of this study is to compare among different designs of the occlusal surface of artificial crowns, trying to determine a guidance of fabricating artificial crowns with better mimesis of the original tooth crown in terms of morphology.
Outcome Measures
| Outcome | Result | p-value |
|---|---|---|
| PRIMARY △OT Value |
0.07; 0.13; 0.22 | 0.003 sig |
| PRIMARY △DT Value |
0.09; 0.49; 1.02 | 0.007 sig |
| SECONDARY Occlusal Adjusting Time for Crowns |
5.4; 6.1; 12.6 | 0.006 sig |
| SECONDARY Likert's Scale |
4; 3; 0; 5; 5; 1 | 0.001 sig |
Eligibility Criteria
Inclusion Criteria
- single crown restoration needed in posterior quadrants
- the antagonist of the abutment tooth is purely natural or received minimum restorations that does not change its morphology too much
- no orthodontic treatment history
- stable occlusion
- no parafunctional movements existed
Exclusion Criteria
- sequential crown restorations needed
- the morphology of the antagonist of the abutment tooth has been largely changed by previous treatment
- no contact exists between the abutment tooth and its antagonist
- orthodontic treatment history
- unstable occlusion
- existed parafunctional movements
- participated in other clinical studies
Data sourced from ClinicalTrials.gov (NCT02609178). Outcome figures and adverse-event rates are extracted automatically from the registry's posted results and are provided for clinician reference, not as a substitute for the primary publication. Informational only — not medical advice.