Crown Leverage

[McTeeth]

Hey guys,

All things remaining equal. Is there a "formula" for how much horizontal overhang leverage a crown can have on an abutment?

What are the main variables I should focus on?

Thanks

 

[rkm rdt]

I would send that screen shot to the dr before proceeding.

 

[2thm8kr]

1:1 or better if you can.

Short fat implants are all the rage now to avoid grafting. We'll see how they fair over time especially in the posterior region.

 

[McTeeth]

I would send that screen shot to the dr before proceeding.

Oh for sure, Its just a dirty mock-up so you guys can see it. I use this sort of communication with my Dr's frequently. We have already discussed a gap between it if need be

 

[McTeeth]

1:1 or better if you can.

Short fat implants are all the rage now to avoid grafting. We'll see how they fair over time especially in the posterior region.

Could you elaborate on this 1:1? Thanks

 

[2thm8kr]

Could you elaborate on this 1:1? Thanks

Implant length to crown length ratio.

 

[rkm rdt]

Oh for sure, Its just a dirty mock-up so you guys can see it. I use this sort of communication with my Dr's frequently

I get those cases on occasion and the prescribing dr needs to have the conversation with the surgeon.

 

[2thm8kr]

I get those cases on occasion and the prescribing dr needs to have the conversation with the surgeon.

If the surgeon makes that placement there is no need to have that conversation more than once.

 

[McTeeth]

Implant length to crown length ratio.

Gotcha, sorry my question was regarding the "cantilever" leverage

I get those cases on occasion and the prescribing dr needs to have the conversation with the surgeon.

What if it's the same person?

 

[zero_zero]

Yet another case with no/bad planning... all you can do to is assure a broad tight interprox. contact and out of occlusion on the mesial aspect...

 

[rkm rdt]

Gotcha, sorry my question was re


What if it's the same person?

lol, then your behind is covered.

 

[2thm8kr]

Yet another case with no/bad planning... all you can do to is assure a broad tight interprox. contact and out of occlusion on the mesial aspect...

Even out of occlusion, is in occlusion with a bolus of food on the table.

 

[zero_zero]

Even out of occlusion, is in occlusion with a bolus of food on the table.

Not if the pt. buys a blender...

 

[McTeeth]

Yet another case with no/bad planning... all you can do to is assure a broad tight interprox. contact and out of occlusion on the mesial aspect...

I was leaning towards just that, but I'm also wondering if thats a good idea. What does this "enabling" to do the health of the implant? Is it better to just put a 2mm gap.

 

[McTeeth]

Hey guys,

All things remaining equal. Is there a "formula" for how much horizontal overhang leverage a crown can have on an abutment?

What are the main variables I should focus on?

Thanks

 

[zero_zero]

I was leaning towards just that, but I'm also wondering if thats a good idea. What does this "enabling" to do the health of the implant? Is it better to just put a 2mm gap.

Leaving a diastema and natural emergence would prolly work for the health of that implant...pt. will most likely complain about packing food in there... no win really, IMO

 

[John C]

Maybe you should suggest that the Dr. place a deep distal rest on adjacent tooth so it can be locked in place like a keyway.