scholarly journals Effects of Surface Modification on Adsorption Behavior of Cell and Protein on Titanium Surface by Using Quartz Crystal Microbalance System

Materials ◽  
2020 ◽  
Vol 14 (1) ◽  
pp. 97
Author(s):  
Takumi Matsumoto ◽  
Yuichiro Tashiro ◽  
Satoshi Komasa ◽  
Akiko Miyake ◽  
Yutaka Komasa ◽  
...  
Keyword(s):  
Bone Marrow ◽  
Surface Treatment ◽  
Quartz Crystal Microbalance ◽  
Atmospheric Pressure ◽  
Quartz Crystal ◽  
Bone Marrow Cells ◽  
Atmospheric Pressure Plasma ◽  
Pressure Plasma ◽  
Adhesive Proteins ◽  
Marrow Cells

Primary stability and osseointegration are major challenges in dental implant treatments, where the material surface properties and wettability are critical in the early formation of hard tissue around the implant. In this study, a quartz crystal microbalance (QCM) was used to measure the nanogram level amount of protein and bone marrow cells adhered to the surfaces of titanium (Ti) surface in real time. The effects of ultraviolet (UV) and atmospheric-pressure plasma treatment to impart surface hydrophilicity to the implant surface were evaluated. The surface treatment methods resulted in a marked decrease in the surface carbon (C) content and increase in the oxygen (O) content, along with super hydrophilicity. The results of QCM measurements showed that adhesion of both adhesive proteins and bone marrow cells was enhanced after surface treatment. Although both methods produced implants with good osseointegration behavior and less reactive oxidative species, the samples treated with atmospheric pressure plasma showed the best overall performance and are recommended for clinical use. It was verified that QCM is an effective method for analyzing the initial adhesion process on dental implants.

scholarly journals Surface activation of High Impact Polystyrene substrate using dynamic atmospheric pressure plasma

2019 ◽  
Vol 4 (1) ◽  
pp. 80-87
Author(s):  
Gergely Juhász ◽  
Miklós Berczeli ◽  
Zoltán Weltsch
Keyword(s):  
Surface Treatment ◽  
Atmospheric Pressure ◽  
Adhesive Bonding ◽  
Atmospheric Pressure Plasma ◽  
Theoretical Background ◽  
Surface Treatments ◽  
Surface Adhesion ◽  
Adhesion Properties ◽  
Pressure Plasma ◽  
Plasma Surface Treatment

Over the last decade, the number of researches has increased in the field of bonding technologies. Researchers attempt to improve surface adhesion properties by surface treatments. Adhesive bonding is one of these bonding techniques, where it is important to see what surfaces will be bonded. One such surface property is wetting, which can be improved by several types of surface treatment. In recent years, atmospheric pressure plasmas have appeared, with which research is ongoing on surface treatments. In our research, we will deal with the effects of plasma surface treatment at atmospheric pressure and its measurement. In addition, we summarize the theoretical background of adhesion, surface tension and surface treatment with atmospheric pressure plasma. Our goal is to improve adhesion properties and thus the adhesion quality.

Surface Treatment of Human Hard Dental Tissues with Atmospheric Pressure Plasma Jet

2016 ◽  
Vol 37 (2) ◽  
pp. 401-413 ◽  
Author(s):  
Vedran Šantak ◽  
Alenka Vesel ◽  
Rok Zaplotnik ◽  
Marijan Bišćan ◽  
Slobodan Milošević
Keyword(s):  
Surface Treatment ◽  
Atmospheric Pressure ◽  
Atmospheric Pressure Plasma ◽  
Plasma Jet ◽  
Atmospheric Pressure Plasma Jet ◽  
Dental Tissues ◽  
Pressure Plasma ◽  
Hard Dental Tissues

Polyimide Surface Treatment by Atmospheric Pressure Plasma for Metal Adhesion

2010 ◽  
Vol 157 (12) ◽  
pp. D614 ◽  
Author(s):  
J. B. Park ◽  
J. S. Oh ◽  
E. L. Gil ◽  
S. J. Kyoung ◽  
J. T. Lim ◽  
...  
Keyword(s):  
Surface Treatment ◽  
Atmospheric Pressure ◽  
Atmospheric Pressure Plasma ◽  
Pressure Plasma

scholarly journals Influence of Non-Thermal Atmospheric Pressure Plasma Treatment on Shear Bond Strength between Y-TZP and Self-Adhesive Resin Cement

Materials ◽  
2019 ◽  
Vol 12 (20) ◽  
pp. 3321 ◽  
Author(s):  
Dae-Sung Kim ◽  
Jong-Ju Ahn ◽  
Eun-Bin Bae ◽  
Gyoo-Cheon Kim ◽  
Chang-Mo Jeong ◽  
...  
Keyword(s):  
Bond Strength ◽  
Surface Treatment ◽  
Atmospheric Pressure ◽  
Shear Bond Strength ◽  
Atmospheric Pressure Plasma ◽  
Resin Cement ◽  
Control Group ◽  
Adhesive Resin ◽  
Pressure Plasma ◽  
Adhesive Resin Cement

The purpose of this study was to evaluate the effect of non-thermal atmospheric pressure plasma (NTP) on shear bond strength (SBS) between yttria-stabilized tetragonal zirconia polycrystal (Y-TZP) and self-adhesive resin cement. For this study, surface energy (SE) was calculated with cube-shaped Y-TZP specimens, and SBS was measured on disc-shaped Y-TZP specimens bonded with G-CEM LinkAce or RelyX U200 resin cylinder. The Y-TZP specimens were classified into four groups according to the surface treatment as follows: Control (no surface treatment), NTP, Sb (Sandblasting), and Sb + NTP. The results showed that the SE was significantly higher in the NTP group than in the Control group (p < 0.05). For the SBS test, in non-thermocycling, the NTP group of both self-adhesive resin cements showed significantly higher SBS than the Control group (p < 0.05). However, regardless of the cement type in thermocycling, there was no significant increase in the SBS between the Control and NTP groups. Comparing the two cements, regardless of thermocycling, the NTP group of G-CEM LinkAce showed significantly higher SBS than that of RelyX U200 (p < 0.05). Our study suggests that NTP increases the SE. Furthermore, NTP increases the initial SBS, which is higher when using G-CEM LinkAce than when using RelyX U200.

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