[Use of formalinized homologous bone in reconstructive operations on the mandible].

An experience with 69 osteoplastic operations with formalinized homografts in 66 patients having various affections and injuries of the lower jaw is summarized. The grafts were preserved in 0.5% formalin solution or gel containing 0.25% formalin and 0.25% betapropiolactone as sterilizing agents. Positive issues during the follow-up from 4 months to 4 years 7 months were noted in 60 operative procedures, negative--in 9. It is concluded that the formalinized homobone shows good osteoplastic properties and may be used as a plastic material in reparative operations on the lower jaw bone.