| 摘要 |
<p>PURPOSE:To promote the regeneration and renewal of a bone by a method wherein a film to be implanted into a bone lost part or a part requiring renewal of a periodontium is made up of a felt made of a bioabsorbable material to prevent the infiltration of a gum bond tissue-oriented cell and an epithelial cell into an affected part and allows assistance in the induction of an osteoblast. CONSTITUTION:To induce (proliferate) a bone, a film to be implanted into a bone lost part or a part requiring the renewal of a bone of a periodontium is made up of a felt made of a bioabsorbable material and the bioapsorbable material comprises a polymer of glycolic acid or a copolymer of lactic acid and glycolic acid. The degree of polymerization of the copolymer is in a range of 2000-5000 and the felt is formed by compressing fibers with the fineness of 2.0-4.0 denier. In the production, the bioabsorbable material is melted to be spun and drawn to make fibers, which undergoes a heat treatment to be knitted and then, is formed into a felt by compressing. A film thus obtained is pressed thermally.</p> |
