Title: Characteristics of the hydroxyapatite film deposited on human enamel: deposition of a ceramic film by powder jet deposition technique

Authors: Miyoko Noji, Mohammad Saeed Sepasy Zahmaty, Toshihiko Shibuya, Nobuhito Yoshihara, Tsunemoto Kuriyagawa, Keiichi Sasaki, Osamu Suzuki

Addresses: Division of Advanced Prosthetic, Tohoku University, Sendai, Japan. ' Department of Mechanical Engineering, University of Tehran, Tehran, Iran. ' Department of Nanomechanics, Tohoku University, Sendai, Japan. ' Department of Nanomechanics, Tohoku University, Sendai, Japan. ' Department of Nanomechanics, Tohoku University, Sendai, Japan. ' Division of Advanced Prosthetic, Tohoku University, Sendai, Japan. ' Division of Craniofacial Function Engineering, Tohoku University, Sendai, Japan

Abstract: A thick film of Hydroxyapatite (HAp) film is experimentally deposited on the enamel and dentin parts of a human tooth, using Powder Jet Deposition (PJD) technique. Micromorphologies of the created film, of the interface between the tooth and deposited film, and also of the tooth itself are studied and elaborated. Finally, possibility of a totally new kind of tooth treatment based on forming a new type of bond between the tooth and biomaterials through recalcification process is introduced.

Keywords: restorative dentistry; PJD; powder jet deposition; HAp film; hydroxyapatite; thick film; recalcification; human enamel; ceramic film; micromorphology; biomaterials; tooth treatment.

DOI: 10.1504/IJAT.2009.021640

International Journal of Abrasive Technology, 2009 Vol.2 No.1, pp.83 - 96

Published online: 30 Nov 2008 *

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