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Effect of Hydroxyapatite Content on Physical Properties and Connective Tissue Reactions to a Chitosan–hydroxyapatite Composite Membrane by Michio Ito; Yuichi Hidaka; Mituharu Nakajima; Hiroshi Yagasaki; A. H. Kafrawy is a Medicine article available to read on EtoBox.

What is Effect of Hydroxyapatite Content on Physical Properties and Connective Tissue Reactions to a Chitosan–hydroxyapatite Composite Membrane about?

The present study investigated the effect on certain physical properties of adding various amounts of hydroxyapatite (HAP) to chitosan sol. Also investigated were connective tissue reactions to a composite membrane that is being developed for possible use in guided tissue regeneration and for the limitation of HA particle migration at sites of implantation. The physical properties evaluated were shrinkage, tensile strength, hardness, calcium ion release, and morphology. Assessment of physical properties indicated that a ratio of HA to chitosan sol of 4/11 by weight is optimal in the preparation of the composite membrane. Subperiosteal implantation of the membranes over rat calvaria revealed that the membranes were well tolerated, with fibrous encapsulation and occasional areas of osteogenesis. Increasing the hydroxyapatite content seems to enhance membrane degradation.

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Author

Michio Ito; Yuichi Hidaka; Mituharu Nakajima; Hiroshi Yagasaki; A. H. Kafrawy

Publisher

John Wiley and Sons; Wiley (John Wiley & Sons); Heterocorporation; Wiley (ISSN 0021-9304)

Published

1999

Language

EN

Field

Medicine (Health Sciences)