Affinity
Well-Known Member
Donator
Full Member
- Messages
- 6,946
- Reaction score
- 1,062
Had a fairly straightforward Nobel active RP splinted crown case, on 2 custom dess abutments that didnt fit in the mouth. It was a beauty on the model, dropped down like no problem. Dr called and said there must have been some 'distortion' because he couldnt get it to fit, even after trimming the abutments down .. same Dr called a week before to thank me for all the 'slam-dunks' on these style implants.
My question is, how common is this with pickup style impressions? I cant see any reason why this shouldnt be exactly like it is in the mouth, the implants are in bone, impressions dont distort that much. On these peg abutments where the cervical margins are .5mm larger diameter than the screw hole, there isnt much that seats other than maybe a touch at the margins.
How do you troubleshoot these? Im going to scan the abutments on the old model, then transfer to the new model, scan and see if there was distortion between the two.
But anyone that can help me from going crazy please do.. Other than the Dr didnt place them in the right position ( they have very large flat surace on the buccal),how could these abutments be so misaligned compared to the model?
My question is, how common is this with pickup style impressions? I cant see any reason why this shouldnt be exactly like it is in the mouth, the implants are in bone, impressions dont distort that much. On these peg abutments where the cervical margins are .5mm larger diameter than the screw hole, there isnt much that seats other than maybe a touch at the margins.
How do you troubleshoot these? Im going to scan the abutments on the old model, then transfer to the new model, scan and see if there was distortion between the two.
But anyone that can help me from going crazy please do.. Other than the Dr didnt place them in the right position ( they have very large flat surace on the buccal),how could these abutments be so misaligned compared to the model?