Effect of Crown to Titanium Base Ratio and Force Angle on the Biomechanical Behavior of Dental Implants With CAD/CAM Zirconia and Lithium Disilicate Crowns: A Finite Element Analysis
In anterior single-implant models, the lowest restoration stresses were achieved with a short crown on a 3.5-mm Ti-base and monolithic zirconia. Long crowns (11 mm) increased crown stresses, and abutment height should be tailored to material and anticipated loading direction rather than adjusted by a single rule. Oblique loading consistently raised bone stress compared with 65°, underscoring the need to optimize for axial force transmission.
Authors
- Marzieh Alikhasi (ORCID: https://orcid.org/0000-0002-2527-728X)
- Allahyar Geramy (ORCID: https://orcid.org/0000-0001-9552-7961)
- Sara Abtahi (ORCID: https://orcid.org/0000-0001-8373-797X)
- Hakimeh Siadat
- Shamim Mirzaboland
Institutions
- Tehran University of Medical Sciences (IR)
- Macquarie University (AU)
Publication Details
- Journal
- Clinical and Experimental Dental Research
- Published
- 2026-02-01
- DOI
- https://doi.org/10.1002/cre2.70296
- Primary Topic
- Dental Implant Techniques and Outcomes
- Type
- article
- Field-Weighted Citation Impact
- 0.00
Funders
- Tehran University of Medical Sciences and Health Services