Heat-cured polymethylmethacrylate (PMMA) milling blank product used to make long-term temporary crowns and bridge restorations has incorrect label. label states Part no. 5336-B1 (98x20mm). However, the item inside the box was Part no. 4302-B1 (95x20mm). An incorrect label may result in compatibility issues when setting up the disc with milling machine fixtures due to size variation.
Talladium
The linear shrinkage on the zirconia blank disc s part label is incorrect. The average linear shrinkage found on the product label was outside the acceptable range. The acceptable average linear shrinkage ranges between 1.225 to 1.275. The production lot being recalled has a linear shrinkage rate of 2.251 which is above the acceptable range.