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Irradiation conditions for fiber laser bonding of HAp-glass ceramics with bovine cortical bone.

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Title: Irradiation conditions for fiber laser bonding of HAp-glass ceramics with bovine cortical bone.
Authors: Tadano, Shigeru Browse this author →KAKEN DB
Yamada, Satoshi Browse this author →KAKEN DB
Kanaoka, Masaru Browse this author
Keywords: Bone
Fiber laser
Issue Date: 2014
Publisher: IOS Press
Journal Title: Bio-Medical Materials and Engineering
Volume: 24
Issue: 3
Start Page: 1555
End Page: 1562
Publisher DOI: 10.3233/BME-140960
PMID: 24840194
Abstract: Orthopedic implants are widely used to repair bones and to replace articulating joint surfaces. It is important to develop an instantaneous technique for the direct bonding of bone and implant materials. The aim of this study was to develop a technique for the laser bonding of bone with an implant material like ceramics. Ceramic specimens (10 mm diameter and 1 mm thickness) were sintered with hydroxyapatite and MgO-Al2O3-SiO2 glass powders mixed in 40:60 wt% proportions. A small hole was bored at the center of a ceramic specimen. The ceramic specimen was positioned onto a bovine bone specimen and a 5 mm diameter area of the ceramic specimen was irradiated using a fiber laser beam (1070-1080 nm wavelength). As a result, the bone and the ceramic specimens bonded strongly under the irradiation conditions of a 400 W laser power and a 1.0 s exposure time. The maximum shear strength was 5.3±2.3 N. A bonding substance that penetrated deeply into the bone specimen was generated around the hole in the ceramic specimen. On using the fiber laser, the ceramic specimen instantaneously bonded to the bone specimen. Further, the irradiation conditions required for the bonding were investigated.
Type: article
Appears in Collections:工学院・工学研究院 (Graduate School of Engineering / Faculty of Engineering) > 雑誌発表論文等 (Peer-reviewed Journal Articles, etc)

Submitter: 但野 茂

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