Investigation of Modeling Techniques for Adding Stress Analysis Functions to Dental Implant Simulation Tools
○Conventional surgical support tools
The dentist uses the patient's CT data to determine the type of implant and the placement conditions based on the dentist's own experience.
Conventional surgical support tools[1]
At this time, the implant placement position was determined based on the dentist's knowledge and empirical rules.
In recent years, however, improved computer performance and the development of 3D modeling technology have made it possible to evaluate the entire jawbone by stress analysis using a model of the entire jawbone.
Problems
Consideration of the implant placement location was based on the dentist's rule of thumb.
As a result, patients sometimes complain of pain and discomfort after treatment.
→Stress analysis can confirm the effect on the jawbone after implant placement.
○Proposed surgical support simulation tool
Proposed surgical support tool
System advantages
①Be able to present stress distributions from an engineering perspective.
→Support for the proposed treatment is possible.
②Present a jawbone model to the patient.
→We can help patients understand the treatment.
Problems
Time and knowledge (skills) are required to create the jawbone model.
For this reason, it can only be handled by a knowledgeable person.
→The system is semi-automated to save time.
○Research Objectives
Integrate stress analysis into simulation tools, build systems that incorporate semi-automation and solve problems.
○Slides
[1]Mito Implant Clinic Ootomo Dental Clinic
https://www.ibaraki-implant.net/i-ct/
[2]Cruz et al, "Three-dimensional Finite Element Stress Analysis of a Cuneiform-Geometry Implant",The International Journal of Oral & Maxillofacial Implants,Vol 18,No 5,(2003),pp675-684
