Geistlich Bio-Oss Pen, Sterile cancellous granules in an applicator, 1-2mm 0.5g, For single use only, Part Number 20126 - Product Usage: Augmentation or reconstructive treatment of the alveolar ridge; Filling of infrabony periodontal defects; Filling of defects after root resection, apicoectomy and cystectomy; Filling of extraction sockets to enhance preservation of the alveolar ridge; Elevation of the maxillary sinus floor, etc.
When unscrewing the green cap from the pen, a visible piece of green plastic was seen on the outer barrel of the pen.
US Nationwide distribution.
https://www.accessdata.fda.gov/scripts/ires/index.cfm?Product=Z-2147-2019