The small Geistlich Bio-Oss Pen® particles allow close contact with the surrounding bone wall. They are recommended for smaller defects, contouring autogenous block grafts, and bone augmentation of defects around implants.
The large Geistlich Bio-Oss Pen® granules have more space between the particles than the small granules. Particularly in large defects, this enables improved regeneration over large distances and provides enough space for the ingrowing bone.
CAUTION: Federal law restricts these devices to sale by or on the order of a dentist or physician.