alexa Restoration of Tooth Enamel Using a Flexible Hydroxyapatite Sheet Coated with Tricalcium Phosphate

Bioceramics Development and Applications
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Research Article

Restoration of Tooth Enamel Using a Flexible Hydroxyapatite Sheet Coated with Tricalcium Phosphate

Ei Yamamoto1*, Nobuhiro Kato1, Arata Isai1, Hiroaki Nishikawa1, Masanobu Kusunoki1, Kazushi Yoshikawa2 and Shigeki Hontsu1

1Department of Biomedical Engineering, Faculty of Biology-Oriented Science and Technology, Kinki University, Kinokawa, Wakayama 649-6493, Japan

2Department of Operative Dentistry, Osaka Dental University, Hirakata, Osaka 573-1121, Japan

Corresponding Author:
Ei Yamamoto
Department of Biomedical Engineering
Faculty of Biology-Oriented Science and Technology
Kinki University, Kinokawa
Wakayama 649-6493, Japan
E-mail: [email protected]

Received date: June 08, 2013; Accepted date: July 23, 2013; Published date: August 23, 2013

Citation: Yamamoto E, Kato N, Isai A, Nishikawa H, Kusunoki M, et al. (2013) Restoration of Tooth Enamel Using a Flexible Hydroxyapatite Sheet Coated with Tricalcium Phosphate. Bioceram Dev Appl S1:006. doi:10.4172/2090-5025.S1-006

Copyright: © 2013 Yamamoto E, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.



Restoration and protection of tooth enamel are of great importance in operative and conservative dentistry. Using a Pulsed Laser Deposition (PLD) method, we have successfully created a freestanding flexible double-layered sheet composed of a Hydroxyapatite (HAp) layer (4 m in thickness) coated with a Tricalcium Phosphate (TCP) layer (500 nm). In order to apply the newly developed HAp/TCP sheet to the restoration and protection of tooth enamel, the adhesive characteristics of the HAp/TCP sheet on the enamel were evaluated mechanically and microstructurally in the present study. The adhesive strength (5.7 MPa) between the HAp/TCP sheet and enamel was markedly higher than that (1.9 MPa) between the mono-layered HAp sheet and enamel. The electron microscopic observation revealed that HAp/TCP sheet was widely fused with the enamel. Therefore, the double-layered HAp/TCP sheet can be used as a material to promote the repair of tooth eruption and to maintain healthy dentine.

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