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Improving dental implant stability by optimizing thread design: Simultaneous application of finite element method and
Masoud Arabbeiki1, Mohammad Reza Niroomand2, Gholamreza Rouhi3
1Department of Mechanical and Aerospace Engineering, Politecnico di Torino, Turin, Italy.
The Journal of Prosthetic Dentistry
|August 2, 2023
Summary
This study identified optimal dental implant thread designs for stability. Key parameters like thread depth, width, and upper thread angle significantly influence mechanical stress and implant stability, leading to a V-shape design recommendation.
Area of Science:
- Biomaterials Science
- Mechanical Engineering
- Dental Biomechanics
Background:
- Optimal dental implant thread design is crucial for stability but remains a challenge.
- Understanding thread configuration's impact on implant-bone biomechanics is needed.
Purpose of the Study:
- To determine the optimal thread design for dental implants using finite element analysis.
- Investigate the influence of thread depth (TD), thread width (TW), thread pitch (TP), and thread angles (α, β) on mechanical stresses.
Main Methods:
- Developed a finite element model of an implant within alveolar bone.
- Employed Latin hypercube sampling and decision tree analysis to identify optimal thread parameters.
- Assessed the impact of thread parameters on stress in bone, implant, and the interface.
Main Results:
- Thread depth (TD), thread width (TW), and upper thread angle (α) were identified as the most influential parameters for implant stability.
- Results were validated against existing literature.
Conclusions:
- Optimal thread parameter ranges were determined: 0.25
- These ranges collectively define a V-shape thread design that promotes enhanced implant stability.
