Stupid NERB teeth

[kerrydds06]

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Any one else having a cow over these stupid bi-layered teeth the nerb is now using.
And what's up with #3 access. It is impossible to fulfil all the criteria. We will have to take a "hit" somewhere cause of the location of the canals. I think I will leave unsupported structure rather than cross the ridges or cusp tips.


Suggestions??
Help is appreciated.

 

[Blue Tooth]

Ignore the multicolored part of the teeth. Prep them to criteria.

As for the access, it's not a big deal. You just have to leave 2-3mm of the marginal ridge, and 1 mm of the oblique ridge. That's plenty of room to get straightline access.

 

[cusp of carabelli]

Any one else having a cow over these stupid bi-layered teeth the nerb is now using.
And what's up with #3 access. It is impossible to fulfil all the criteria. We will have to take a "hit" somewhere cause of the location of the canals. I think I will leave unsupported structure rather than cross the ridges or cusp tips.


Suggestions??
Help is appreciated.

i had trouble w/the nerb teeth at first b/c they cut like butter so the first time i tried cutting the crown preps, they were all over reduced. now what i do is start off with the high speed and then finish up everything with the slow speed. I know it doesn't mimic real life but what about this examination does? as for #3 access...yeah...it's kinda tricky...i'm having a hard time with that one as well...