2024-03-29T13:34:48Z
https://niigata-u.repo.nii.ac.jp/oai
oai:niigata-u.repo.nii.ac.jp:02000631
2022-12-15T04:17:53Z
432:433:434
453:455
Metallization by Sputtering to Improve the Bond Strength between Zirconia Ceramics and Resin Cements
スパッタリングを応用したメタライズによるジルコニア表面処理方法の開発
Kimura, Tatsuya
木村, 龍弥
open access
© 2021 by the authors. Licensee MDPI, Basel, Switzerland.
Creative Commons Attribution 4.0 International
zirconia
surface treatment
metallization
titanium sputtering
bonding strength
Zirconia has been used as a prosthesis material for over a decade because of its excellent mechanical properties and esthetics. The surface treatment for zirconia generally involves sandblasting and the application of primers for favorable bond strength between the surface and resin. However, sandblasting causes the microcracking and chipping of the zirconia surface. To overcome these challenges, the metallization of the zirconia surface was performed. Ti and Au were sputtered on yttria stabilized zirconia (YSZ) disks and heated to 800 ℃ for 15 min in air. These disks were bonded to stainless-steel rods using resin cement. Then, shear bond strength tests were performed using an Instron-type testing machine. The shear bond strength of the Ti sputtering group was significantly higher than that of the other groups. According to the results of X-ray photoelectron spectroscopy and electron probe microanalysis, the Ti-sputtered YSZ surface contained both sub-titanium oxide and titanium oxide before heating. Sub-titanium oxide was converted to titanium oxide by heating. These results suggest that metallization using Ti is effective for zirconia surface treatment to improve the shear bond strength between YSZ and resin cement. This metallization technique for YSZ has potential in clinical applications.
Journal of Functional Biomaterials. 2021, 12(4), 62.
新大院博(歯)第501号
eng
doctoral thesis
http://hdl.handle.net/10191/0002000631
https://niigata-u.repo.nii.ac.jp/records/2000631
https://doi.org/10.3390/jfb12040062
甲第5015号
博士(歯学)
2022-03-23
13101
新潟大学
Niigata University
https://niigata-u.repo.nii.ac.jp/record/2000631/files/r3ndk501.pdf
application/pdf
2.76MB
2022-07-25
https://niigata-u.repo.nii.ac.jp/record/2000631/files/r3ndk501_a.pdf
application/pdf
215KB
2022-07-25