Fixation Screw

A fixation screw is a screw used for the stabilization of a block graft or a barrier membrane. A fixation screw can also be used to stabilize a surgical guide. A block bone graft is a procedure performed in patients that have bone defects over a large area. The replacement bone for the affected area is generally taken from the back of the jaw. Once the new bone is placed, it is secured using fixation screws which are often made of titanium. A barrier membrane is utilized following a guided bone regeneration procedure and is put in place to prevent pathogens or other cells not involved in osseointegration from invading the site of the GBR. The membrane protects the cells involved in bone growth through preventing contamination with non-related cells or microbes. It is therefore essential that this membrane be secured using fixation screws to prevent its movement or removal