The Model + Antagonist Protocol

47 Rating(s).


Posted on By Salo Kegen In CBCT & CAD/CAM

See attached pics and read the text under the pics in this link: https://goo.gl/dEHdBF

Using this (very easy to implement) protocol plus the Inflated Vestibulum Protocol (gap between the jaws, tongue retracted - see this link: https://goo.gl/c9NrTk) you can achieve:
- Very accurate model over CT registration
- Very accurate model over antagonist registration (in fact fully automatic)
- Planning implants taking into consideration: bone, soft tissue, antagonist (in the "correct" place as per the dental technician), etc.

WARNING: The antagonist STL (the maxilla in red in the example) WILL NEVER BE IN SYNC WITH THE CT using this method (even if it looks like...).

NOTE: This protocol can of course be also "Model + Waxup + Antagonist". The Model + Waxup Protocol (following the same principle) in this link: https://goo.gl/msvUCn. In this scenario you import to SIMPLANT three STLs (model, waxup, antagonist) but you do just one registration.

This is the "model" STL
This is the "antagonist" STL

Model + Antagonist STLs
How to import the STLs to SIMPLANT


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2 Comments

Sato, well done, Interesting procedure to obtain the .stl in occlusion model file. I'd like to ask about possible advantage by using this procedure. Thanks. Armando


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Thanks Armando. This procedure permits to CT scan the patient with the teeth not touching (best for future STL registration) but also to plan the implants with the antagonist in the "correct" place (as it was in the articulator). In this scenario you see the real antagonist denture (without the scatter from the DICOM). And most important: you do not need to make a manual (and in general difficult) STL registration of the antagonist. If you import both STLs with SIMPLANT as showed, moving the main model will cause the antagonist to move together, during the registration with the Optical Module.


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KLS Martin
DoWell Dental Products