Effect of loading force on the dissolution behavior and surface properties of nickel-titanium orthodontic archwires in artificial saliva

Liu, Jia-Kuang; Lee, Tzer Min; Liu, I-Hua

doi:10.1016/j.ajodo.2010.03.031

Cited by 32 publications

(20 citation statements)

References 23 publications

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“…The utmost weight losses and copper element release of CoAW were under the condition of pH = 4.0 and force displacement 5 mm. The results come to an agreement with conclusion of Liu et al that the stressed Nitinol wires exhibited substantial increase in nickel release compared with the unbent specimens at different pH values AS [17]. As shown in Figure 6, both stressed and unstressed specimens showed uniform corrosion but relative intact surface in longer period of artificial saliva immersion.…”

Section: Discussion the Biocompatibility Of Orthodontic Archsupporting

confidence: 90%

“…Wang et al studied the stress corrosion cracking (SCC) mechanism of Nitinol wires in artificial saliva [16]. Liu et al suggested that the passive film was not stable under loading conditions, and cracking of the passive film of Nitinol wires would occur under continuous bending stress [17]. However, studies of the corrosion behavior of CoAW which contains relatively frail copper interlayer under stress are still missing.…”

Section: Introductionmentioning

confidence: 99%

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Susceptibility to Stress Corrosion of Laser-Welded Composite Arch Wire in Acid Artificial Saliva

Zhang

2013

Advances in Materials Science and Engineering

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The corrosion resistance of laser-welded composite arch wire (CoAW) with Cu interlayer between NiTi shape memory alloy and stainless steel wire in artificial saliva with different acidities and loads was studied. It was found that both the solution pH and the stress had a significant influence on the corrosion behaviors of the CoAW samples. Decreasing the solution pH or increasing the loading stress caused the increase of Cu release and weight loss. The corroded morphology formed on the surfaces of the CoAW was the consequence under the combined effect of corrosion and stress.

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Section: Discussion the Biocompatibility Of Orthodontic Archsupporting

confidence: 90%

Section: Introductionmentioning

confidence: 99%

Susceptibility to Stress Corrosion of Laser-Welded Composite Arch Wire in Acid Artificial Saliva

Zhang

2013

Advances in Materials Science and Engineering

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“…Peak lists were constructed starting with a base of protein-related peaks adapted from Brown et. al., 31,32 and were supplemented with nutrient-related peaks. Nutrient-related peaks were verified either by: (1) the presence of the peak in the nutrient sample and absence of the peak in the control sample or (2) a peak whose intensity was proportional to nutrient concentration.…”

Section: Methodsmentioning

confidence: 99%

Plasma Pencil Atmospheric Mass Spectrometry Detection of Positive Ions from Micronutrients Emitted from Surfaces

Stein

Castner

et al. 2012

Anal. Chem.

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Analysis and detection of micronutrients is important for the reduction of the global burden of malnutrition-related disease. A relatively new technique, plasma pen atmospheric mass spectrometry (PPAMS) was applied in a comprehensive evaluation for rapid, simultaneous detection of the key micronutrients: zinc, iron, folate, vitamin A, and iodine. PPAMS was performed through the coupling of a low-temperature plasma pen to an atmospheric mass spectrometer (MS). The effectiveness of the PPAMS system was demonstrated through the generation of characteristic mass spectra and tandem mass spectra on neat micronutrient powders suspended on double sided tape. The analytical performance and ability to qualitatively separate out the nutrients from a complex biological solution and each other was then assessed through the application of PPAMS on a sample matrix of micronutrients in porcine plasma in which nutrient concentration is varied from high blood level concentrations (HBLCs) to low blood level concentrations (LBLCs). A multivariate software model, principal components analysis (PCA) was then used to qualitatively separate the fragments obtained by nutrient type. The resulting PCA scores plots of the positive ion spectra from each mixed sample showed excellent separation of HBLCs and LBLCs of single nutrients at the 95% confidence level.1 The associated PCA loadings plots showed that key loadings could be attributed to the expected micronutrient fragments. The PPAMS technique was successfully demonstrated and compared with traditional MS techniques: time-of-flight secondary ion mass spectrometry (ToF-SIMS) and electrospray ionization mass spectrometry (ESI-MS). Separation of the nutrients at concentrations relevant for human blood-based nutrient detection was possible in both ESI-MS and PPAMS. However, only PPAMS could detect the nutrients at physiological concentrations from porcine plasma. ToF-SIMS could detect the nutrients from plasma solution but required 5× to 1000× higher concentrations of folate, vitamin A, and iodine to achieve adequate separation of the micronutrients via PCA.

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“…The release of elements from dental casting alloys in different matrices has been mainly measured using either Atomic absorption spectroscopy (AAS) [25][26], Inductively coupled plasma-optical emission spectrometry (ICP-OES) [16,27], or Inductively coupled plasma mass spectrometry (ICP-MS) [1,[28][29][30]. For many elements, the power of detection of ICP-OES is not sufficient to determine elemental background Page 5 of 39 A c c e p t e d M a n u s c r i p t concentrations.…”

Section: Introductionmentioning

confidence: 99%

In vivo determination of aluminum, cobalt, chromium, copper, nickel, titanium and vanadium in oral mucosa cells from orthodontic patients with mini-implants by Inductively coupled plasma-mass spectrometry (ICP-MS)

Martín-Cameán

Jos

Puerto

et al. 2015

Journal of Trace Elements in Medicine and Biology

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Effect of loading force on the dissolution behavior and surface properties of nickel-titanium orthodontic archwires in artificial saliva

Cited by 32 publications

References 23 publications

Susceptibility to Stress Corrosion of Laser-Welded Composite Arch Wire in Acid Artificial Saliva

Susceptibility to Stress Corrosion of Laser-Welded Composite Arch Wire in Acid Artificial Saliva

Plasma Pencil Atmospheric Mass Spectrometry Detection of Positive Ions from Micronutrients Emitted from Surfaces

In vivo determination of aluminum, cobalt, chromium, copper, nickel, titanium and vanadium in oral mucosa cells from orthodontic patients with mini-implants by Inductively coupled plasma-mass spectrometry (ICP-MS)

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