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RJS8669
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I posted this on Facebook as well -
This is a cautionary tale - not necessarily 3Shape related.
I recently completed a case with 3 single Nobel ASC FCZ restorations. We used this product to reposition the screw channels.
One little quirk with regards to these restorations is that the Ti bases feature a mechanical lock that affixes the zirconia crown to the Ti base without the use of cement.
When the case was delivered, the doctor called to tell me that the crowns were about 1mm out of occlusion. She took a new bite and returned them to have some ceramic added. Maybe I should have realized what had happened when after the remount the crowns appeared to be in occlusion. Nevertheless, I added very small amounts of glass to the centric stops and returned the case.
Again, I get a phone call that the crowns are out of occlusion. Xrays were sent showing the crowns screwed into the mouth and yes - about 1mm out of occlusion.
The patient is moving out the area, so the doctor - feeling horrible about the situation - torqued the restorations into place, rebated the patient's entire fee, and advised that he see a new dentist as soon as possible in his new location.
Two weeks go by. Last night I got an email from the doctor - . With a picture - and a
question, "What are these small gold components that are resting atop the implant analogs on the model?
Oh, no...
You guessed it. When the doctor removed the crowns from the model, the Ti bases had stayed affixed to the analogs, but weren't visible because of the soft tissue.
I've since advised the client to contact the patient immediately as I have no idea what is holding the crowns in place.
Just wanted to share in case a similar situation arises in someone else's laboratory. I feel kinda dumb for not figuring it out, but - then again - my hindsight is always 20/20...
This is a cautionary tale - not necessarily 3Shape related.
I recently completed a case with 3 single Nobel ASC FCZ restorations. We used this product to reposition the screw channels.
One little quirk with regards to these restorations is that the Ti bases feature a mechanical lock that affixes the zirconia crown to the Ti base without the use of cement.
When the case was delivered, the doctor called to tell me that the crowns were about 1mm out of occlusion. She took a new bite and returned them to have some ceramic added. Maybe I should have realized what had happened when after the remount the crowns appeared to be in occlusion. Nevertheless, I added very small amounts of glass to the centric stops and returned the case.
Again, I get a phone call that the crowns are out of occlusion. Xrays were sent showing the crowns screwed into the mouth and yes - about 1mm out of occlusion.
The patient is moving out the area, so the doctor - feeling horrible about the situation - torqued the restorations into place, rebated the patient's entire fee, and advised that he see a new dentist as soon as possible in his new location.
Two weeks go by. Last night I got an email from the doctor - . With a picture - and a
question, "What are these small gold components that are resting atop the implant analogs on the model?
Oh, no...
You guessed it. When the doctor removed the crowns from the model, the Ti bases had stayed affixed to the analogs, but weren't visible because of the soft tissue.
I've since advised the client to contact the patient immediately as I have no idea what is holding the crowns in place.
Just wanted to share in case a similar situation arises in someone else's laboratory. I feel kinda dumb for not figuring it out, but - then again - my hindsight is always 20/20...