AIM This in vitro study measured the force-deflection behavior of selected initial alignment archwires by conducting three-point bending tests under controlled conditions. The study tested four wire designs: multistranded stainless steel, conventional stainless steel, superelastic nickel-titanium, and thermoactivated nickel-titanium archwires. METHOD The wires (n = 15) were ligated into stain...

The Nd:YAG laser welding was used to join the binary NiTi alloy wires with different compositions(Ti–50.0 at.%Ni and Ti–50.9 at.%Ni) which had the same diameter of 1 mm. The wires were welded with different parameters, including impulse width and welding current. The aim was to assess the influence of the laser-welding process on the microstructure and mechanical properties of the welded joint ...

Background and aim: Orthodontic treatment these days is increasing in demand, and therefore, it is relatively imperative for the orthodontist to prescribe the use of fluoride-containing products, such as mouthwashes and gels, to help prevent dental caries and maintain healthy oral health. The aim of the study was to assess and evaluate the effects of fluoride prophylactic agents on mechanical p...

This study explores a new concept of the synergy between two constituent shape memory alloys (SMAs) in composite to achieve wide superelastic temperature window. In this work, nanocrystalline NiTi/NiTiNbFe dual-SMA is designed, which SMAs are both capable stress-induced martensitic transformation, but within different ranges. Based on principle lattice strain matching SMAs, transformation one i...

To date, there is a general lack of customizability within the selection endovascular devices for catheter-based vascular interventions. Laser powder bed fusion (LPBF) has been flexibly exploited to produce customized implants using conventional biomedical alloys orthopedic and dental applications. Applying LPBF cardiovascular applications, patient-specific stents can be produced with small str...

Experimental tests performed on superelastic shape-memory alloys (SMAs) show a significant dependence of the stress–strain relationship on the loading–unloading rate, coupled with a not negligible oscillation of the material temperature. This feature is of particular importance in view of the use of such materials in earthquake engineering, where the loading rate affects the structural response...