INTRODUCTION The performance and mechanical properties of nickel-titanium (NiTi) instruments are influenced by factors such as cross-section, flute design, raw material, and manufacturing processes. Many improvements have been proposed by manufacturers during the past decade to provide clinicians with safer and more efficient instruments. METHODS The mechanical performance of NiTi alloys is s...

OBJECTIVES Various methods for sternal approximation have been described previously. Some patients undergoing these procedures are at risk for sternal dehiscence and mediastinitis. We used a different method, with a suture anchor system, for median sternotomy closure as an alternate technique in patients with a high risk of postoperative sternal dehiscence and sternal nonunion. MATERIAL AND M...

The aim of this in vitro study was to evaluate the frictional forces between bracket and archwire that included three passive self-ligating brackets (Damon SL2 SDS). The brackets were individually bonded to a brass mount using a preformed 0.021 x 0.025 inch stainless steel wire jig in order to exclude adverse tipping or torsion. The central bracket was positioned 1 mm higher than the others, in...

AIMS The aim of this study was to evaluate the shaping effects of two M-wire and two traditional nickel-titanium (NiTi) rotary systems in simulated S-shaped resin canals. SUBJECTS AND METHODS Forty simulated S-shaped canals in resin blocks were instrumented with two traditional (ProTaper, Sendoline S5) and two M-wire (WaveOne, GT series X) NiTi systems according to the manufacturers' instruct...

Micro-plate implants are jaw in the form of straight plates. The need for micro-plate Indonesia is quite high. Current fabricated using two machining processes, namely Wire Electrical Discharge Machining (wire-EDM) and micro-milling. These processes one reasons why price market expensive. One way to lower shorten implant manufacturing process. This research develops a process EDM die-sinking ma...

Background and aims. This study compared the galvanic corrosion of orthodontic wires and brackets from various manufacturers following exposure to a fluoride mouthwash. Materials and methods. This study was conducted on 24 lower central incisor 0.022" Roth brackets of four different commercially available brands (Dentaurum, American Orthodontics, ORJ, Shinye). These brackets along with stainles...

Here we employ self-assembled Mg-doped GaN nanowires (NWs) grown by plasma assisted molecular beam epitaxy on Si(111) substrates to fabricate piezogenerators. We first discuss the fabrication and testing of rigid nanowire-based generators and then a flexible generator prototype is shown.

The choice of the most suitable orthodontic wire for each stage of treatment requires estimation of the forces generated. In theory, the selection of wire sequences should initially utilize a lower flexural rigidity; thus clinicians use smaller round cross-sectional dimension wires to generate lighter forces during the preliminary alignment stage. This assessment is true for conventional alloys...

In additive manufacturing, technologies based on the fusion of a metallic wire using an electric arc represent interesting alternative to current manufacturing processes, particularly for large metal parts, thanks higher deposition rates and lower process costs than powder or wire-laser technologies. A versatile 3D printing device DED-W Arc (Direct Energy Deposition by wire-arc) station melt fi...