Effect of UV Photofunctionalization of HA/TiO2 Coated Implants Prepared by Dual-Target Sputtering on Bone-Implant Integration

Nobutake Monai; Atsushi Kuwabara; Norishige Kawanishi; Ryotaro Ozawa; Takuya Adachi; Saki Tsunoi; Makoto Inoue; Makiko Saita; Tohru Hayakawa; Noriyuki Hoshi; Katsuhiko Kimoto

doi:10.2485/jhtb.32.99

Original

Effect of UV Photofunctionalization of HA/TiO₂ Coated Implants Prepared by Dual-Target Sputtering on Bone-Implant Integration

Nobutake Monai, Atsushi Kuwabara, Norishige Kawanishi, Ryotaro Ozawa, Takuya Adachi, Saki Tsunoi, Makoto Inoue, Makiko Saita, Tohru Hayakawa, Noriyuki Hoshi, Katsuhiko Kimoto

Author information

Nobutake Monai
Department of Fixed Prosthodontics, Kanagawa Dental University
Atsushi Kuwabara
Department of Fixed Prosthodontics, Kanagawa Dental University
Norishige Kawanishi
Department of Fixed Prosthodontics, Kanagawa Dental University
Ryotaro Ozawa
Department of Fixed Prosthodontics, Kanagawa Dental University
Takuya Adachi
Department of Fixed Prosthodontics, Kanagawa Dental University
Saki Tsunoi
Department of Fixed Prosthodontics, Kanagawa Dental University
Makoto Inoue
Department of Fixed Prosthodontics, Kanagawa Dental University
Makiko Saita
Department of Fixed Prosthodontics, Kanagawa Dental University
Tohru Hayakawa
Department of Dental Engineering, Tsurumi University School of Dental Medicine
Noriyuki Hoshi
Department of Fixed Prosthodontics, Kanagawa Dental University
Department of Education Planning, Kanagawa Dental University
Katsuhiko Kimoto
Department of Fixed Prosthodontics, Kanagawa Dental University

Keywords: Dual sputtering deposition, Hydroxyapatite, Titanium dioxide, Photofunctionalization, Bone-implant integration

JOURNAL FREE ACCESS

2023 Volume 32 Issue 2 Pages 99-104

DOI https://doi.org/10.2485/jhtb.32.99

Details

Abstract

The purpose of this study was to examine the biological response to a hydroxyapatite (HA)/titanium dioxide (TiO₂) hybrid (Hyb) coated implant surface after ultraviolet UV irradiation. After acid etching, titanium (Ti) disc and implant surfaces were modified using HA and TiO₂ targets, employing single-target and dual-target sputter deposition techniques, and subjected to ultraviolet (UV) irradiation. The surface roughness and hydrophilicity were analyzed, and the biomechanical strength of the bone-implant interface was assessed using an implant biomechanical push-in test. We found that UV irradiation improved the strength of the bone-implant interface for all modified Ti surfaces. The Hyb surface showed greater bone-implant integration than the microrough (acid etched) or single-target sputtered surfaces (TiO₂ and HA).

Corresponding author

Register with J-STAGE for free!