M
MLeeDT
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Hello. My questions are rather newbish so pardon my amateur-status.. please bare with me. I was just wondering if anyone can gimme some insight on the following things..
I fully understand how to prep a single unit implant abutment but when it comes to multi-abutment cases, I don't get the rules in parallelism.
Instead of explaining my problem in just words, I made a really quick illustration of my problem to help (Yes, I made it in 1 minute in Paint).
The 3 colored lines show the different possible ways to prep the abutments, yes? Now when doing singles, the way I learned it was that I should usually prep the abutments so that it's parallel to the adjacent teeth and their contact points, which is simple enough. But when it comes to multi-unit abutments and their different angles, I'm not sure how to approach it.
The green line being parallel to the adjacent tooth's contact point seems sensible, but it'll make the abutments extremely thin and non-retentive.
However, both the red and blue lines seem to make sense, albeit it doesn't line up well with the adjacent tooth's contact and might cause some issues with insertion, yes?
Also if red and blue are correct, then do I have to apply both angles or just 1 of them? In other words, do I match the distal of AB2 to AB1 as well as the mesial of AB1 to AB2 or just 1 of them -- and additionally, why/why not?
What is the overall proper procedure?
And I have another question about implant/analog/abutment types. As a technician, I'm not exposed to many actual implants but rather their analogs. I have some trouble picking out the right abutments. I can recognize Zimmer/Nobel Biocare analogs fairly easily, but I have a very difficult time recognizing other companies. I am aware of the website 'What Implant is That?" but that I believe is mostly used for doctors as it relates to implants only. Is there any other website or sources I can go to, to verify analog types? Preferably a source that has images of the platforms, flange type, whether it's a hex, trilobe, internal/external, etc etc.
Thank you all so very much if you actually even read this. I'd be grateful for any help!
I fully understand how to prep a single unit implant abutment but when it comes to multi-abutment cases, I don't get the rules in parallelism.
Instead of explaining my problem in just words, I made a really quick illustration of my problem to help (Yes, I made it in 1 minute in Paint).
The 3 colored lines show the different possible ways to prep the abutments, yes? Now when doing singles, the way I learned it was that I should usually prep the abutments so that it's parallel to the adjacent teeth and their contact points, which is simple enough. But when it comes to multi-unit abutments and their different angles, I'm not sure how to approach it.
The green line being parallel to the adjacent tooth's contact point seems sensible, but it'll make the abutments extremely thin and non-retentive.
However, both the red and blue lines seem to make sense, albeit it doesn't line up well with the adjacent tooth's contact and might cause some issues with insertion, yes?
Also if red and blue are correct, then do I have to apply both angles or just 1 of them? In other words, do I match the distal of AB2 to AB1 as well as the mesial of AB1 to AB2 or just 1 of them -- and additionally, why/why not?
What is the overall proper procedure?
And I have another question about implant/analog/abutment types. As a technician, I'm not exposed to many actual implants but rather their analogs. I have some trouble picking out the right abutments. I can recognize Zimmer/Nobel Biocare analogs fairly easily, but I have a very difficult time recognizing other companies. I am aware of the website 'What Implant is That?" but that I believe is mostly used for doctors as it relates to implants only. Is there any other website or sources I can go to, to verify analog types? Preferably a source that has images of the platforms, flange type, whether it's a hex, trilobe, internal/external, etc etc.
Thank you all so very much if you actually even read this. I'd be grateful for any help!