Antibacterial Fluorinated Diamond-like Carbon Coating Promotes Osteogenesis—Comparison with Titanium Alloy

Fluorinated diamond-like carbon (F-DLC) coating is biologically safe, provides superior antibacterial properties, and shows promise in preventing postoperative peri-implant infections. However, potential negative effects of this coating on in vivo bone formation and resorption have not been studied....

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Main Authors: Takeshi Sasamoto, Masahito Kawaguchi, Katsutaka Yonezawa, Toru Ichiseki, Ayumi Kaneuji, Kazuhiro Shintani, Anzu Yoshida, Norio Kawahara
Format: Article
Language:English
Published: MDPI AG 2021-10-01
Series:Applied Sciences
Subjects:
Online Access:https://www.mdpi.com/2076-3417/11/20/9451
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author Takeshi Sasamoto
Masahito Kawaguchi
Katsutaka Yonezawa
Toru Ichiseki
Ayumi Kaneuji
Kazuhiro Shintani
Anzu Yoshida
Norio Kawahara
author_facet Takeshi Sasamoto
Masahito Kawaguchi
Katsutaka Yonezawa
Toru Ichiseki
Ayumi Kaneuji
Kazuhiro Shintani
Anzu Yoshida
Norio Kawahara
author_sort Takeshi Sasamoto
collection DOAJ
description Fluorinated diamond-like carbon (F-DLC) coating is biologically safe, provides superior antibacterial properties, and shows promise in preventing postoperative peri-implant infections. However, potential negative effects of this coating on in vivo bone formation and resorption have not been studied. The authors investigated the effects of F-DLC coatings on bone union in beagle dogs. Seventy-two solid columns of titanium alloy were prepared with equally spaced slits. Half of these columns were coated with F-DLC (Group F), and the others were left uncoated as controls (Group C). Columns were implanted in the femurs of beagle dogs, and in vivo bone formation and resorption were assessed 4, 8, and 12 weeks after implantation. In comparison to Group C, Group F showed significantly greater bone volume and trabecular thickness at Week 8 (<i>p</i> < 0.05) and Week 12 (<i>p</i> < 0.005) and significantly lower bone resorption activity, measured by the ratio of osteoclasts to bone surface and of eroded surface to bone surface, at Week 12 (<i>p</i> < 0.05). The F-DLC coating encouraged bone formation in vivo more effectively than uncoated titanium alloy, suggesting that F-DLC will prove to be a useful coating material for antibacterial intraosseous implants.
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spelling doaj.art-50eca57850cb4e7a913c436267f2c3ec2023-11-22T17:18:51ZengMDPI AGApplied Sciences2076-34172021-10-011120945110.3390/app11209451Antibacterial Fluorinated Diamond-like Carbon Coating Promotes Osteogenesis—Comparison with Titanium AlloyTakeshi Sasamoto0Masahito Kawaguchi1Katsutaka Yonezawa2Toru Ichiseki3Ayumi Kaneuji4Kazuhiro Shintani5Anzu Yoshida6Norio Kawahara7Department of Orthopedic Surgery, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Kahoku 920-0293, JapanDepartment of Orthopedic Surgery, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Kahoku 920-0293, JapanDepartment of Orthopedic Surgery, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Kahoku 920-0293, JapanDepartment of Orthopedic Surgery, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Kahoku 920-0293, JapanDepartment of Orthopedic Surgery, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Kahoku 920-0293, JapanDepartment of Mechanical Engineering, Kanazawa Institute of Technology, 7-1 Ohgigaoka, Nonoichi 921-8501, JapanDepartment of Mechanical Engineering, Kanazawa Institute of Technology, 7-1 Ohgigaoka, Nonoichi 921-8501, JapanDepartment of Orthopedic Surgery, Kanazawa Medical University, 1-1 Daigaku, Uchinada, Kahoku 920-0293, JapanFluorinated diamond-like carbon (F-DLC) coating is biologically safe, provides superior antibacterial properties, and shows promise in preventing postoperative peri-implant infections. However, potential negative effects of this coating on in vivo bone formation and resorption have not been studied. The authors investigated the effects of F-DLC coatings on bone union in beagle dogs. Seventy-two solid columns of titanium alloy were prepared with equally spaced slits. Half of these columns were coated with F-DLC (Group F), and the others were left uncoated as controls (Group C). Columns were implanted in the femurs of beagle dogs, and in vivo bone formation and resorption were assessed 4, 8, and 12 weeks after implantation. In comparison to Group C, Group F showed significantly greater bone volume and trabecular thickness at Week 8 (<i>p</i> < 0.05) and Week 12 (<i>p</i> < 0.005) and significantly lower bone resorption activity, measured by the ratio of osteoclasts to bone surface and of eroded surface to bone surface, at Week 12 (<i>p</i> < 0.05). The F-DLC coating encouraged bone formation in vivo more effectively than uncoated titanium alloy, suggesting that F-DLC will prove to be a useful coating material for antibacterial intraosseous implants.https://www.mdpi.com/2076-3417/11/20/9451F-DLC coatingantibacterial propertiesperi-implant infectionbone formationbone resorption
spellingShingle Takeshi Sasamoto
Masahito Kawaguchi
Katsutaka Yonezawa
Toru Ichiseki
Ayumi Kaneuji
Kazuhiro Shintani
Anzu Yoshida
Norio Kawahara
Antibacterial Fluorinated Diamond-like Carbon Coating Promotes Osteogenesis—Comparison with Titanium Alloy
Applied Sciences
F-DLC coating
antibacterial properties
peri-implant infection
bone formation
bone resorption
title Antibacterial Fluorinated Diamond-like Carbon Coating Promotes Osteogenesis—Comparison with Titanium Alloy
title_full Antibacterial Fluorinated Diamond-like Carbon Coating Promotes Osteogenesis—Comparison with Titanium Alloy
title_fullStr Antibacterial Fluorinated Diamond-like Carbon Coating Promotes Osteogenesis—Comparison with Titanium Alloy
title_full_unstemmed Antibacterial Fluorinated Diamond-like Carbon Coating Promotes Osteogenesis—Comparison with Titanium Alloy
title_short Antibacterial Fluorinated Diamond-like Carbon Coating Promotes Osteogenesis—Comparison with Titanium Alloy
title_sort antibacterial fluorinated diamond like carbon coating promotes osteogenesis comparison with titanium alloy
topic F-DLC coating
antibacterial properties
peri-implant infection
bone formation
bone resorption
url https://www.mdpi.com/2076-3417/11/20/9451
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AT masahitokawaguchi antibacterialfluorinateddiamondlikecarboncoatingpromotesosteogenesiscomparisonwithtitaniumalloy
AT katsutakayonezawa antibacterialfluorinateddiamondlikecarboncoatingpromotesosteogenesiscomparisonwithtitaniumalloy
AT toruichiseki antibacterialfluorinateddiamondlikecarboncoatingpromotesosteogenesiscomparisonwithtitaniumalloy
AT ayumikaneuji antibacterialfluorinateddiamondlikecarboncoatingpromotesosteogenesiscomparisonwithtitaniumalloy
AT kazuhiroshintani antibacterialfluorinateddiamondlikecarboncoatingpromotesosteogenesiscomparisonwithtitaniumalloy
AT anzuyoshida antibacterialfluorinateddiamondlikecarboncoatingpromotesosteogenesiscomparisonwithtitaniumalloy
AT noriokawahara antibacterialfluorinateddiamondlikecarboncoatingpromotesosteogenesiscomparisonwithtitaniumalloy