Stress Distribution in Peri-implant Bone of Implants Restored with Screw, Cement, and Cement-Screw Retained Crowns Using Three Crown Materials: a Three-dimensional Finite Element Analysis
- 17.05.2025
- ORIGINAL ARTICLE
Erschienen in:
- Verfasst von
- Ankita K. Pasad
- Jyoti B. Nadgere
- Janani V. Iyer
- Erschienen in
- Journal of Maxillofacial and Oral Surgery | Ausgabe 4/2025
Abstract
Aim
To comparatively evaluate stress distribution in the peri-implant bone in three-dimensional finite element (3D FE) models of titanium implants with different crowns—Metal Ceramic, Zirconia, Poly Ether Ether Ketone (PEEK) retained by three methods—screw, cement, cement-screw under functional load.
Settings and Design
An implant crown can be retained by screw, cement or a combination of the two—cement-screw. Materials for fabricating implant restorations vary which distribute stress differently in the peri-implant bone.
Materials and Methods
Nine 3D FE models depicting the restoration-implant-bone complex in the mandibular premolar region were constructed using CAD Solidworks software. The Altair pre-processor was used for model meshing. Young’s modulus and Poisson’s ratio were allotted to each material. Occlusal loading (100N) in vertical and oblique (30°) directions was performed on the 3D FE models and von Mises stresses generated in the peri-implant bone were visualised, evaluated according to colour code, numerically recorded, assessed and compared.
Results
For the vertical and inclined force models, stress distribution in peri-implant bone was higher in all screw retained models and lower for all cement retained and cement-screw retained models. Peri-implant bone stresses were comparable for cement retained and cement-screw retained prosthesis.
Conclusion
Any of the nine combinations of crown materials—Metal Ceramic, Zirconia, PEEK and retention methods—screw retained, cement retained, cement-screw retained can be used clinically as they have stress varying for less than 10% across all models.
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- Titel
- Stress Distribution in Peri-implant Bone of Implants Restored with Screw, Cement, and Cement-Screw Retained Crowns Using Three Crown Materials: a Three-dimensional Finite Element Analysis
- Verfasst von
-
Ankita K. Pasad
Jyoti B. Nadgere
Janani V. Iyer
- Publikationsdatum
- 17.05.2025
- Verlag
- Springer India
- Erschienen in
-
Journal of Maxillofacial and Oral Surgery / Ausgabe 4/2025
Print ISSN: 0972-8279
Elektronische ISSN: 0974-942X - DOI
- https://doi.org/10.1007/s12663-025-02565-6
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