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Volume 9 , Issue 1
January/February 1994

Pages 41-48

An In Vivo Evaluation of an Osteoinductive Implantable Material Produced by Osteoblastic Cells In Vitro

Kuniteru Nagahara, DDS, PhD/Kenzou Mouri, DDS/Nobutake Kanematsu, DDS, PhD/Michael A. Meenaghan, DDS, PhD

PMID: 8150511

Osteoinductive implantable materials have been a subject of basic science research in clinical implantology. This study examined the osteoinductive effect of an implantable material produced by osteoblastic cells that were isolated in the laboratory from mouse calvaria. After 21 days in culture, osteoblastic cells formed a thin film that could be easily manipulated. This thin film was subjected to freezing and thawing and was implanted in mouse muscle tissue. Osteoblastic cells were strongly positive for alkaline phosphatase reactivity and Von Kossa stain in vitro. Collagen type I, osteocalcin (BGP), and alkaline phosphatase were identified at the immunohistochemical electron microscopic level. Histologic findings showed an osteoinductive effect of the implanted material. The results strongly suggest the possibility of producing an osteoinductive implantable material by culturing osteoblastic cells in vitro. (INT J ORAL MAXILLOFAC IMPLANTS 1994;9:41-48.)

Key words: culture, osteoblastic cell, osteoinductive implantable materials

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