Where is my occlusal space going?

[sirmorty]

I'm using Exocad and by the time I correct the antagonist for some foil relief and factor in cement space. I'm fighting for space to design.

Maybe it's also my CAM that is taking up the space?

Can anyone share some settings or know where I could be losing the space?

 

[CoolHandLuke]

if anything your cam will be leaving material, milling too large.

recently i discovered this with great pain on my 350.

 

[Tayebdental]

I'm using Exocad and by the time I correct the antagonist for some foil relief and factor in cement space. I'm fighting for space to design.

Maybe it's also my CAM that is taking up the space?

Can anyone share some settings or know where I could be losing the space?

I think you have to ask docs for more clearance or trim opposing, you need room for nice looking and functional occlusional anatomy.

 

[user name]

What do you mean, correct antagonist for some foil relief? I like to work with accurate scans; hopefully just the way it is in the mouth. I have my minimum thickness at .7 and gap thickness of cement at .025. I usually have enough room to work with. I use black silk typing ribbon to check occlusions on the model. No room? talk to the Dr.

 

[adl]

What do you mean, correct antagonist for some foil relief? I like to work with accurate scans; hopefully just the way it is in the mouth. I have my minimum thickness at .7 and gap thickness of cement at .025. I usually have enough room to work with. I use black silk typing ribbon to check occlusions on the model. No room? talk to the Dr.

It could be your mill not your scanner

 

[sirmorty]

If I design with exactly what the DOF scanner or 3shape D800 gives me, the bite will be high in the mouth. Guaranteed

I adjust the bite to collide with each other. Most accounts don't want to do any adjustments, especially occlusal.

It's the same with oral scans that are sent. The bite is always over closed on the scans.

 

[ps2thtec]

If I design with exactly what the DOF scanner or 3shape D800 gives me, the bite will be high in the mouth. Guaranteed

I adjust the bite to collide with each other. Most accounts don't want to do any adjustments, especially occlusal.

It's the same with oral scans that are sent. The bite is always over closed on the scans.

Is your “correct to anatagonist” step done in expert? I do that usually 3clicks, getting the contact spots green. Then back in wizard at the “adjust to antagonist, usually set at .13-.14 . Occlusion is fine most of the time.

Is it possible that you had limited occlusal space to begin with ?

 

[sirmorty]

Yeah , I do that in expert mode. Usually 3 or 4 clicks like you say.

I feel like there is at least 1mm total space in most cases. I find that it's fine when I design and it should not be any issue. But it's not translating to when I have the crowns milled out and sintered or in the mouth.

 

[Mike2]

If u have a mm to start, how do you think you will have enough rm? .25mm cement gap and min. thickness .5mm, then .12-.14mm relief leaves very little rm for error. My 2 cents

 

[Tayebdental]

If u have a mm to start, how do you think you will have enough rm? .25mm cement gap and min. thickness .5mm, then .12-.14mm relief leaves very little rm for error. My 2 cents

Cement gap in microns is 40-60 microns and that’s 0.04 - 0.06 millimeters

 

[CoolHandLuke]

some people crank up cement gap instead of ensuring the milling toolpaths remove all the material.

 

[user name]

some people crank up cement gap instead of ensuring the milling toolpaths remove all the material.

On that point...its been a long time since Ive touched it, but I was looking for the drill comp settings, and I cant seem to find where it was/is. Im using Exo and Hyperdent.

 

[adl]

If u have a mm to start, how do you think you will have enough rm? .25mm cement gap and min. thickness .5mm, then .12-.14mm relief leaves very little rm for error. My 2 cents

Mm is not the same with microns.

 

[user name]

 

[user name]

1mm = 1000 microns

 

[ps2thtec]

I'm using Exocad and by the time I correct the antagonist for some foil relief and factor in cement space. I'm fighting for space to design.

Maybe it's also my CAM that is taking up the space?

Can anyone share some settings or know where I could be losing the space?

You asked in the first post, here is mine. Clarification... the cement gap of .095 is for one of my mill centers. When I send to a different mill center with D51 mill I use .04 for cement gap.