Longer span frameworks and those with a significant curve to them should have a support structure that would be left in place during sintering. This will help to stabilize them. You would then remove the support after sintering with a diamond disk and water. I would then do a regeneration firing before applying porcelain.
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....See more We are sintering these alone with no rapid sintering cycles.
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