Nickel titanium in orthodontics /certified fixed ...

Nickel allergy Nickel is the most common metal to cause contact dermatitis in orthodontics. Nickel-titanium alloys may have nickel content in excess of 50 per cent and can thus potentially release enough nickel in the oral environment to elicit manifestations of an allergic reaction.

A novel β-titanium alloy orthodontic wire - ScienceDirect

Titanium-molybdenum alloy (TMA, Ormco/Sybron, Orange, CA, USA) is a β-titanium alloy introduced in the early 1980s for orthodontic applications. Its combination of high strength and springiness makes it an excellent choice for auxiliary springs and finishing archwires, especially rectangular wires used in late stages of edgewise orthodontic treatment.

Orthodontic archwire - Wikipedia

This alloy was based on the research done by Buehler. Since their introduction, the wires made out of Niti alloys have become an important part of orthodontic treatment. The composition of the wire has 55% Nickel and 45% Titanium. The first nickel-titanium orthodontic wire alloy was marketed by the Unitek Corporation who are now known as 3M Unitek.

(PDF) An Overview of Orthodontic Wires - ResearchGate

Four types of orthodontic archwires were investigated, 2 superelastic nickel-titanium and 2 coated Ultraesthetic archwires in 0.016-in and 0.018 x 0.025-in dimensions (all from G&H Wire, Greenwood ...

Wires in orthodontics - LinkedIn SlideShare

Another nickel titanium alloy introduced by Burstone and developed by Dr Tien Hua Cheng is called as Chinese Niti alloy in1985 It has a springback that is 4.4 times that of comparable stainless steel wire and 1.6 times that of nitinol wire Burstone C.J.et al:Chinese NiTi wore,a new orthodontic alloy AJO 1985 Vol 87 ,445- 452 www.indiandentalacademy.com

NICKEL-TITANIUM WIRES - Rocky Mountain Orthodontics

The alloy itself is a combination of one atom each of Nickel and Titanium (stoichiometric amounts). Because atoms have different weights, the alloy, by weight %, is 55% Nickel and 45% Titanium. One variation of this alloy composition is removal of 5 atoms of Nickel, replaced by 5 atoms of Copper. The resulting wire was called: Copper Ni-Ti.

NICKEL-TITANIUM WIRES - Rocky Mountain Orthodontics

The alloy itself is a combination of one atom each of Nickel and Titanium (stoichiometric amounts). Because atoms have different weights, the alloy, by weight %, is 55% Nickel and 45% Titanium. One variation of this alloy composition is removal of 5 atoms of Nickel, replaced by 5 atoms of Copper. The resulting wire was called: Copper Ni-Ti.

Nickel Titanium Alloy - an overview | ScienceDirect Topics

1.4.3 Nickel–titanium. The NiTi alloy is used in orthodontics for wires. Andreasen and his colleagues introduced the alloy to orthodontics, and a wire (now named Nitinol Classic) was marketed in the late 1970s by Unitek Corporation (now 3M Unitek). Andreasen and …

Nickel titanium - Wikipedia

Nickel titanium, also known as Nitinol, is a metal alloy of nickel and titanium, where the two elements are present in roughly equal atomic percentages.Different alloys are named according to the weight percentage of Nickel, e.g. Nitinol 55 and Nitinol 60.It exhibits the shape memory effect and superelasticity at different temperatures.. Nitinol alloys exhibit two closely related and unique ...

Nickel-Titanium (NiTi) Arch Wires: The Clinical ...

Nickel-titanium (NiTi) shape-memory alloys (SMAs) have been used in the manufacture of orthodontic wires due to their shape memory properties, super-elasticity, high ductility, and resistance to ...

An evaluation of two types of nickel-titanium wires in ...

Introducing nickel-titanium (NiTi) alloys has made a revolution in orthodontic wires industry and made the dream of applying continuous and constant forces almost true . Many improvements were applied in manufacturing austenite active (superelastic) and martensite active (heat-activated) NiTi wires to benefit from the extraordinary superelasticity and shape memory properties of NiTi alloys [ 3 ].

Allergy and orthodontics - PubMed Central (PMC)

Several metallic alloys are used in orthodontics, such as cobalt-chromium, nickel-titanium, β-titanium, among others; the majority of these alloys have nickel as one of their components. The percentage of this metal in the alloys varies from 8%, as in stainless steel, up to more than 50%, as in nickel-titanium alloys.

Mechanical Properties of Copper-Nickel-Titanium Archwires

ABSTRACT MECHANICAL PROPERTIES OF COPPER-NICKEL-TITANIUM ORTHODONTIC WIRES Margaret Rosen, D.M.D. Marquette University, 2016 Introduction: The initial phase of orthodontic therapy relies on flexible wires, usually composed of a nickel-titanium alloy, to apply a substantially constant load during tooth

Thermal Properties of Copper Nickel-Titanium Orthodontic ...

treatment has been to use a Nickel-Titanium (NiTi) alloy (Jian et al., 2013). Nickel-Titanium was introduced to orthodontics in the 1970s by Andreasen and since then it has been the most popular wire for initial leveling and alignment (Andreasen & Hilleman, 1971). This original near equiatomic alloy of Nickel and Titanium was

The qualities of Superelastic and Heat-activated Nickel ...

25-1-2011· See the superelastic property of Nickel Titanium wire in its austenitic state, and the shape memory property of a heat-activated NiTi wire as it transforms from martensitic to austentic phases.

Clinical and Mechanical Caracteristics for Orthodontic ...

Clinical and Mechanical Caracteristics for Orthodontic Nitinol Wires CAMELIA, SZUHANEK1, T., FLESER2 1 Faculty of Dental Medicine, ˝Victor Babes ˛ University of Medicine and Pharmacy Timisoara, ROMANIA 2Mechanical Engineering Faculty, POLITEHNICA University of Timisoara, ROMANIA [email protected], [email protected]

Nickel Titanium Wire | Nickel Titanium Wire | G&H …

Nickel Titanium Wire. UP TO 50% OFF. G4™ Superelastic Nickel Titanium. Superelastic Nickel Titanium. Superelastic Plus™ Nickel Titanium. M5™ Thermal Copper NiTi. Thermal Nickel Titanium. ... G&H Orthodontics, 2165 Earlywood Drive, Franklin, IN 46131 USA | 317-346-6663 (Fax)

The Facts About Nickel Allergy in Orthodontics | …

The percentage of nickel in orthodontic appliances ranges from 8% (in stainless steel) to more than 50% (in nickel-titanium alloys).[3-5] Estimates are that 4.5% to 28.5% of the total population are sensitized to nickel.[6-9] Nickel hypersensitivity is more prevalent in …

Nickel-titanium alloys: A systematic review

of nickel-titanium alloys Nickel-titanium alloys were initially studied in laboratories by physicists in the beginning of the 60s8 and later developed for clinical use.1 Due to the development of these alloys, new options have emerged such as the nickel-titanium arch wires …

Which Wire? | Orthodontic Products

Orthodontics in the 1960s saw the introduction of cobalt chromium alloy wires. 2 Nitinol, a new alloy of nickel and titanium, was adapted from the Naval Ordinance Laboratory by Andreason for use as an orthodontic wire. 3,4 Modified from the military aerospace industry came wires of a stabilized beta-titanium alloy. 5 Stainless steel and alloys of cobalt-chrome, nickel-titanium, and beta ...

Effect of fluoride on nickel-titanium and stainless steel ...

Effect of Fluoride on Nickel-Titanium and Stainless Steel Orthodontic Archwires… embrittlement of Ni-Ti superelastic alloy in fluoride solution. J Biomed Mater Res A. 2003 May 1;65(2):182-7. 15- Locci P, Lilli C, Marinucci L, Calvitti M, Belcastro S, Bellocchio S, et al.

In vitro biocompatibility of nickel-titanium esthetic ...

Corrosion of stainless steel, nickel-titanium, coated nickel-titanium, and titanium orthodontic wires. Angle Orthod. 1999;69: 39 – 44. [Google Scholar] 20. Iijima M, Yuasa T, Endo K, Muguruma T, Ohno H, Mizoguchi I. Corrosion behavior of ion implanted nickel-titanium orthodontic wire …

Orthodontic Buccal Tooth Movement by Nickel-Free …

Titanium-molybdenum alloy has been used for a nickel-free orthodontic wire. However, this wire does not have shape memory and superelastic property.18 Biocompatible superelastic alloys lacking nickel have therefore been expected in medical use. To reduce the harmful effects of nickel, various nickel-free shape memory and superelastic alloys have been developed.19,20 Nickel-free titanium-based ...

The Mechanical Effects of Flaming Nickel-Titanium ...

1.1 development and properties of the nickel-titanium alloy 1 1.2 use of nickel-titanium in orthodontics 6 1.3 efect of heat treatment on nickel-titanium 7 1.4 prevalence of wire flaming in orthodontic ptactice 10

An evaluation of two types of nickel-titanium wires in ...

Introducing nickel-titanium (NiTi) alloys has made a revolution in orthodontic wires industry [] and made the dream of applying continuous and constant forces almost true [].Many improvements were applied in manufacturing austenite active (superelastic) and martensite active (heat-activated) NiTi wires to benefit from the extraordinary superelasticity and shape memory properties of NiTi alloys [].

Nickel allergy and orthodontics, a review and report of ...

Corrosion of stainless steel, nickel-titanium, coated nickel-titanium, and titanium orthodontic wire. Angle Orthod 1999; 69 : 39–44. PubMed Google Scholar