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In vivo comparison between the effects of chemically modified hydrophilic and anodically oxidized titanium surfaces on initial bone healing

Cited 12 time in Web of Science Cited 18 time in Scopus
Authors
Lee, Hyo-Jung; Yang, Il-Hyung; Kim, Sung-Kyun; Yeo, In-Sung; Kwon, Kaek-Ka
Issue Date
2015
Publisher
Korean Academy of Periodontology
Citation
Journal of Periodontal & Implant Science, vol.45 no.3, pp. 94-100
Keywords
Animal experimentationDental implantsHistologyOsseointegration
Abstract
Purpose: The aim of this study was to investigate the combined effects of physical and
chemical surface factors on in vivo bone responses by comparing chemically modified hydrophilic
sandblasted, large-grit, acid-etched (modSLA) and anodically oxidized hydrophobic
implant surfaces.
Methods: Five modSLA implants and five anodized implants were inserted into the tibiae
of five New Zealand white rabbits (one implant for each tibia). The characteristics of each
surface were determined using field emission scanning electron microscopy, energy dispersive
spectroscopy, and confocal laser scanning microscopy before the installation. The experimental
animals were sacrificed after 1 week of healing and histologic slides were prepared
from the implant-tibial bone blocks removed from the animals. Histomorphometric
analyses were performed on the light microscopic images, and bone-to-implant contact
(BIC) and bone area (BA) ratios were measured. Nonparametric comparison tests were applied
to find any significant differences (P<0.05) between the modSLA and anodized surfaces.
Results: The roughness of the anodized surface was 1.22±0.17 μm in Sa, which was within
the optimal range of 1.0-2.0 μm for a bone response. The modSLA surface was significantly
rougher at 2.53±0.07 μm in Sa. However, the modSLA implant had significantly higher BIC
than the anodized implant (P=0.02). Furthermore, BA ratios did not significantly differ between
the two implants, although the anodized implant had a higher mean value of BA
(P>0.05).
Conclusions: Within the limitations of this study, the hydrophilicity of the modSLA surface
may have a stronger effect on in vivo bone healing than optimal surface roughness and
surface chemistry of the anodized surface.
Language
English
URI
https://hdl.handle.net/10371/94792
DOI
https://doi.org/10.5051/jpis.2015.45.3.94
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College of Dentistry/School of Dentistry (치과대학/치의학대학원)Dept. of Dentistry (치의학과)Journal Papers (저널논문_치의학과)
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