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Marcus Faust · Jan 18, 2014 at 9:08pm
Marcus Faust
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Try to leave a piece of the milling blank attached to the bridge during centering. Some nesting software have runner bars you can add to the bridge for centering.
Posted Jan 18, 2014 at 9:08pmJan 18 2014, 9:08:49 pm
Question
Anyone have any advice on zirconia bridge frameworks "warping"? Hardly ever happens with frameworks with no curve, but seems to be more frequent with 4 unit and larger frames that curve (anterior). Individual units fit terrific internally and marginally,...
Answered By
Marcus Faust
CAD/CAM Manager at International Dental Arts · Coweta, OK
Work at International Dental Arts in Tulsa, OK. Been a Tech since 1999.
Robert Shafer
The most common cause of that for me would be weak or improperly positioned connectors. The zirconia likes to be uniform and shrink as a whole. Thin areas tend to shrink faster (for obvious reasons). Connectors that are too far lingual or facial also...[More] seem to "bend" the frame slightly due to the thicker,...
Susan Jung
When sintering try leaving the sprue and base on and raise the tempture in 5 degrees per minuete but it varies based on furnaces.