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Design of customized coated dental implants using finite element analysis
Vamsi Krishna Dommeti1, Sumit Pramanik1, Sandipan Roy1
1Department of Mechanical Engineering, SRM Institute of Science and Technology, Chennai, India.
Dental and Medical Problems
|March 14, 2023
Summary
Hydroxyapatite (HAP) coating significantly minimizes stress concentration in dental implants across various bone types. Thicker coatings further reduce stress, enhancing implant stability and durability for better long-term outcomes.
Area of Science:
- Biomaterials Science
- Dental Implantology
- Finite Element Analysis
Background:
- Dental implants are crucial for replacing missing teeth, requiring long-term stability and durability.
- The implant-bone interface's success hinges on factors like osseointegration, implant geometry, and surface topography.
Purpose of the Study:
- To investigate the impact of coating materials and thickness on dental implant stress distribution.
- To evaluate different combinations of cortical and cancellous bone on implant performance.
Main Methods:
- Utilized finite element analysis (FEA) to model dental implants with hydroxyapatite (HAP), monticellite (MTC), and titanium nitride (TiN) coatings.
- Varied coating thicknesses (50-200 μm) and simulated five distinct bone combinations under a 150 N axial load.
Main Results:
- HAP coating effectively minimized stress concentration across all simulated bone combinations.
- MTC coating showed significant stress reduction in two specific bone combinations.
- Titanium nitride (TiN) coatings resulted in increased stress values.
Conclusions:
- Coating thickness significantly influences mechanical stress concentration, with thicker coatings reducing stress.
- HAP coatings demonstrate superior performance in mitigating stress for dental implants.
