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Photofunctionalization Enhances Bone-Implant Contact, Dynamics of Interfacial Osteogenesis, Marginal Bone Seal, and Removal Torque Value of Implants: A Dog Jawbone Study

Authors
 Pyo, Se-Wook  ;  Park, Young Bum  ;  Moon, Hong Seok  ;  Lee, Jae-Hoon  ;  Ogawa, Takahiro 
Citation
 IMPLANT DENTISTRY, Vol.22(6) : 666-675, 2013 
Journal Title
 IMPLANT DENTISTRY 
ISSN
 1056-6163 
Issue Date
2013
MeSH
Animals ; Dental Implantation, Endosseous/methods* ; Dental Implants ; Dental Prosthesis Retention ; Dental Stress Analysis ; Dogs ; Male ; Mandible/surgery ; Osseointegration/radiation effects* ; Ultraviolet Therapy/methods*
Keywords
titanium ; super osseointegration ; ultraviolet ; super-hydrophilic ; biological aging ; photofunctionalization
Abstract
OBJECTIVE: Ultraviolet (UV) light treatment of titanium, ie, photofunctionalization, has been extensively reported to enhance the osteoconductivity of titanium in animal and in vitro studies. This is the first study to examine whether photofunctionalization is effective on commercial dental implants in vivo. MATERIALS AND METHODS: Dental implants with a microroughened surface were placed into dog jawbones. Photofunctionalization was performed by treating implants with UV light for 15 minutes using a photo device immediately before placement. Four weeks after placement, bone-implant integration was evaluated using a removable torque test and static and dynamic histology. RESULTS: Implant surfaces were converted from hydrophobic to super-hydrophilic after photofunctionalization. Removable torque for photofunctionalized implants was significantly higher by 50% than that for untreated implants. Bone-implant contact (BIC) was significantly higher for photofunctionalized implants in all zones examined: marginal, cortical, and bone marrow zones. An intensive mineralized layer was exclusively present in marginal bone at photofunctionalized interface. Dynamic histology identified early-onset, long-lasting robust bone deposition at photofunctionalized interface. CONCLUSIONS: Photofunctionalization enhanced the morphology, quality, and behavior of periimplant osteogenesis, including the increased BIC, expedited robust interfacial bone deposition, and improved marginal bone seal and support.
Full Text
http://ovidsp.ovid.com/ovidweb.cgi?T=JS&CSC=Y&NEWS=N&PAGE=fulltext&AN=00008505-201312000-00021&LSLINK=80&D=ovft
DOI
10.1097/ID.0000000000000003
Appears in Collections:
2. College of Dentistry (치과대학) > Dept. of Prosthodontics (보철과학교실) > 1. Journal Papers
Yonsei Authors
Moon, Hong Seok(문홍석) ORCID logo https://orcid.org/0000-0001-8118-8145
Park, Young Bum(박영범)
Lee, Jae Hoon(이재훈) ORCID logo https://orcid.org/0000-0003-2281-8885
URI
https://ir.ymlib.yonsei.ac.kr/handle/22282913/88745
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