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Published on: March 7, 2014
Dental implants press fit phenomena: biomechanical analysis considering bone inelastic response
Arturo N Natali1, Emanuele L Carniel, Piero G Pavan
1Centre of Mechanics of Biological Materials, University of Padova, Via F. Marzolo 9, I-3531 Padova, Italy.arturo.natali@unipd.it
Summary
This study analyzes the biomechanical effects of oral implant insertion, revealing that the press fit action causes significant stress-strain effects in bone tissue, including inelastic responses. Understanding these bone-implant interactions is crucial for dental surgery.
Area of Science:
- Biomedical Engineering
- Oral Surgery
- Materials Science
Background:
- Oral implant insertion relies on press fit, where implant diameter exceeds drilled hole size.
- This creates biomechanical stress and strain in surrounding bone tissue.
- Understanding bone's mechanical response, especially inelastic behavior, is critical.
Purpose of the Study:
- To investigate the biomechanical effects of oral implant insertion via press fit.
- To correlate bone-implant interaction with stress-strain effects in bone.
- To evaluate bone's mechanical response within the inelastic range.
Main Methods:
- Defined bone material properties using experimental data for elastic and orthotropic behavior.
- Interpreted inelastic phenomena with a specific constitutive formulation.
- Simulated displacement fields based on implant geometry and drilled hole dimensions.
Main Results:
- Reported displacement and strain fields in the peri-implant bone region.
- Confirmed occurrence of inelastic effects due to induced strain levels.
- Highlighted the necessity of characterizing inelastic effects for press fit analysis.
Conclusions:
- Accurately evaluated short-term biomechanical effects of press fit in bone.
- Findings are relevant for immediate loading techniques in oral surgery.
- Provides insights into bone-implant interaction and tissue response.
