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- Title
Anodized Biomedical Stainless-Steel Mini-Implant for Rapid Recovery in a Rabbit Model.
- Authors
Cho, Yung-Chieh; Hung, Wei-Chiang; Lan, Wen-Chien; Saito, Takashi; Huang, Bai-Hung; Lee, Chen-Han; Tsai, Hsin-Yu; Huang, Mao-Suan; Ou, Keng-Liang
- Abstract
The study aimed to analyze the recovery period of the anodized 316L biomedical stainless steel (BSS) mini-implant through its implantation on femur of rabbit model. The 316L BSS mini-implant was modified by an electrochemical anodization approach with different voltages. The anodized samples were characterized via field-emission scanning electron microscopy, X-ray diffractometry, and X-ray photoelectron spectroscopy. The biocompatibility was assessed by cell culture assay. The anodized mini-implant was implanted on rabbit's femur then evaluated histologically after 4 and 8 weeks. Analytical results indicated that the topography of the anodized mini-implant at 5 V for 5 min consisted of a dual (micro/nano) porous structure. Oxide film of Cr2O3 was formed on the surface of anodized mini-implant after anodizing with 5 V for 5 min. In vitro cell culture assay revealed that fibroblast cells (NIH-3T3) on the anodized samples were more firmly attached as compared with the control sample. Moreover, histological analysis demonstrated that the anodized mini-implant improved bone recovering at 4 weeks after implantation. Thus, this study suggests that the anodized 316L BSS mini-implant could be a potential choice as anchorage device for effective and efficient orthodontic treatment.
- Subjects
ANODIC oxidation of metals; OXIDE coating; RABBITS; SCANNING electron microscopy; CELL culture; CORRECTIVE orthodontics
- Publication
Metals (2075-4701), 2021, Vol 11, Issue 10, p1575
- ISSN
2075-4701
- Publication type
Article
- DOI
10.3390/met11101575