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Issue title: 2nd International Conference on New Biomedical Materials, 5–8 April 2003, Cardiff, Wales, UK
Article type: Research Article
Authors: Goto, Tetsuya; | Yoshinari, Masao | Kobayashi, Shigeru | Tanaka, Teruo
Affiliations: Department of Oral Anatomy, Kyushu Dental College, Kitakyushu 803‐8580, Japan | Department of Dental Materials Science and Oral Health Science Center, Tokyo Dental College, Chiba 261‐8502, Japan | Laboratory of Oral Anatomy and Cell Biology, Graduate School of Dental Science, Kyushu University, Fukuoka 812‐8582, Japan
Note: [] Corresponding author: Tetsuya Goto, DDS, PhD, Department of Oral Anatomy, Kyushu Dental College, 2‐6‐1 Manazuru, Kokurakita‐ku, Kitakyushu 803‐8580, Japan. Tel.: +81 93 582 1131 (ext. 6644); Fax: +81 93 591 8199; E‐mail: tgoto@kyu‐dent.ac.jp.
Abstract: The interaction between implant materials and bone cells or oral epithelial (OE) cells contributes to the clinical success of dental implants. The functional activity of cells in contact with an implant is determined by its surface properties. Before cells attach, extracellular matrix (ECM) in the serum deposits on the substrate; rounded cells then attach and spread upon it. Cells form focal adhesions and polarize, then start to migrate or proliferate to form colonies. Comparison of the attachment and behavior of osteoblastic cells on titanium (Ti) and hydroxyapatite (HA) revealed that more cells attached on HA and that these spread more rapidly than on Ti. In contrast, cells did not form good stress fibers or vinculin‐positive focal adhesions on HA, whereas the cells on Ti possessed well‐defined and polarized stress fibers. The initial attachment of OE cells to Ti was inferior to that on polystyrene culture dish or glass, and the OE cell migration area, indicated by the deposition of LN5, was smaller on Ti than on the other materials. This review summarizes data on the attachment and behavior of osteoblastic cells and OE cells on biomaterials, which may suggest future improvements in surface properties.
Keywords: Cell attachment, behavior, oral epithelial cell, osteoblast, titanium
Journal: Bio-Medical Materials and Engineering, vol. 14, no. 4, pp. 537-544, 2004
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