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, but 2-3 out of 10 times the frames will rock slightly....
When sintering try leaving the sprue and base on and raise the tempture in 5 degrees per minuete but it varies based on furnaces.
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