Novabone 4 x 0.25cc Putty in Cartridges Grey (Dispenser required) NB Putty has bimodal particle distribution of Calcium Phosphosilicate (CPS) (active ingredient) with Polyethylene Glycol as an additive and Glycerin as a binder. The volume of the active ingredient is approximately 70%. The putty format allows easier manipulation due to its format and eliminates the need for any preparation prior to placement.Putty does not set like a cement. CPS has a transient haemostatic effect providing a comfortable environment for the clinician to work with. It encourages clot stabilisation and promotes healing. Putty has good retention and can be adapted to the defect shape.Putty is radio-dense and can be visualised on radiographs. Upon implantation it appears as a mass at the defect site which can be differentiated from surrounding bone by the lack of trabecular pattern. Over time , with bone remodelling, the graft area appears analogous to the natural bone in the region.Putty has a 4 year shelf life, does not need refrigeration but caution should be exercised at temperature higher than 45 degrees C.