A microcrystalline collagen preparation and a gelatin foam were compared relative to their effects on hemostasis and healing in molar extraction sockets in cats. The agents were essentially equivalent in both hemostasis and the inflammatory response that accompanied healing. Healing was slightly retarded in comparison to that seen in untreated control sockets in a previous study. It appears likely that the inflammatory response was caused by oral contamination, which is unavoidable in this type of procedure, rather than by the agents themselves.
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