Note 1: In situ self-curing can be the source of released reagents that can cause local and/or systemic toxicity as in the case of the monomer released from methacrylics-based bone cement used in orthopedic surgery. Note 2: In dentistry, polymer-based cements are also used as fillers of cavities. They are generally cured photochemically using UV r... Found on http://en.wikipedia.org/wiki/Bone_cement