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Hi Kavan,

thanks for the response. Here is a picture of my simulation which shows the two downgrafts

Then it would have to do with combined or competing rotations.

Hi Kavan,

thanks for the response. Here is a picture of my simulation which shows the two downgrafts

I REMOVED my prior entry which was my GUESS of as to why 'only getting 2.5mm upper tooth show'. I removed it because in hind site I was THROWN FOR A LOOP when the OP 'clarified' the downgraft measures to the posterior and anterior maxilla as being 10.5mm posterior downgrafting and 6.8 anterior downgrafting. Yet NO SUCH measures were listed on the displacement proposal.

So as to the question of :'... why am I only getting an extra 2.5mm of tooth show from the 6.8mm anterior downgrafting? Does the 10.5mm posterior downgrafting counter act the tooth show to some degree?', in retrospect was an invalid one to ask given the displacement proposal  NEITHER lists a 10.5mm posterior downgraft NOR a 6.8 anterior downgraft. So, I removed my response to the OP's question.

The actual displacement proposal cites 3.23 for ANS and 8.77 for PNS. Nothing in it about any 6.8 and 10.5.  Only the advancement at the pogonian cites a 10.5 measure.

I made the text that extensive because I tried to convey my thought process in as much detail as possible.

To put it more simple: What are the odds that palate expansion (via a expander device) will impact the nasal cavity if expansion is performed shortly after DJS with CCW and posterior downgraft. Regarding the stability of the area, where the LF1 took place and the skull and the maxilla are now connected to the additional bone of the downgrafting.

I'm not convinced palate expansion is possible with stable results in adults, and might even cause complications to the tissue, etc. How old are you?

My guess would be you have a long lip/a lot of soft tissue. Also, 2.5mm is a lot...