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[User82]

Hi everyone, 

I want to ask you is there any problem or not in the result section of dental implant analysis.

Before get into the results, I would like to describe my analysis. 

As you can see from the first figure below, there is a bone that consists of cortical and cancellous bones. A dental implant is embedded in these bones. After that 100 N force is applied to the top face of the implant.

Fixed faces are illustrated below.

And then the analysis is solved. My question is related to principal stresses that occurred on the cortical bone. Hence, I showed the related figure below.

 

You can also see a cross-section of the previous figure below.

In literature, the maximum principal stresses take place in the upper face of the cortical bone. But here the case is the opposite. Maximum principal stress has occurred in the bottom face of the cortical bone. I also used many other types of dental types. However, the result was the same. 

What do you think about that? Is there any problem in terms of the engineering aspect?

 

I also supplied cortical bone figures taken from different angles, below. 

Thank you in advance. Best regards.

[peteroznewman]

Maximum Principal Stress shows where the most tensile stress is in the model. Since the force is pushing down, it makes sense that the bottom face of the stiffer cortical bone layer is in tension, and the upper face is in compression.

Can you show the example in the literature that says the opposite?