Bioactive Effects of Low-Temperature Argon-Oxygen Plasma on a Titanium Implant Surface

ACS Omega
Lei WangNa Bai

Abstract

Although titanium is the most commonly used dental implant material, its biological aging directly leads to a lower rate of osseointegration. The aim of this study is to treat aged titanium disc surfaces using low-temperature argon-oxygen plasma (LTAOP) to obtain a more hydrophilic surface in order to enhance biological activities of osteoblasts on dental implant materials. In this study, smooth-machined titanium (SM Ti) and sandblasted and acid-etched titanium (SLA Ti) substrates were used. Aged titanium discs (SM and SLA Ti) were activated by LTAOP and the surface properties were analyzed. Osteoblasts were then seeded onto the aged and LTAOP-treated surfaces. Cell morphology, viability, and features of osteogenesis were examined. We showed that after the LTAOP treatment, the surfaces of both SM and SLA titanium substrates become more hydrophilic with a larger active oxygen species composition, whereas no obvious morphological changes were observed. Osteoblasts were found to be attached and stretched well on the surfaces of LTAOP treatment specimens. Moreover, the proliferation and osteocalcin secretion of osteoblasts on the plasma-activated titanium samples were superior to the untreated counterparts. LTAOP activation can enh...Continue Reading

References

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Citations

Jul 3, 2020·Journal of Clinical Medicine·Nansi López-ValverdeAntonio López-Valverde
Jul 25, 2021·International Journal of Molecular Sciences·Satoshi KomasaJoji Okazaki
Jul 27, 2021·Journal of the Mechanical Behavior of Biomedical Materials·Ernesto B Benalcázar JalkhLukasz Witek

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Methods Mentioned

BETA
scanning electron microscopy
X-ray
Assay
enzyme-linked immunosorbent assay
ELISA

Software Mentioned

ImageJ
SPSS
VEGA TESCAN

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