Can arch wires be used in Clinical Orthodontics?
Manufacturers of arch wires claim that arch wire materials have specific properties, determined by laboratory testing, that make them ideal for use in clinical orthodontics. However, as described above, there are a number of factors that may be expected to influence the performance of any given arch wire in clinical use.
What is the best wire for teeth alignment?
In West 1995, the superelastic NiTi wire was found to produce a statistically significant improved alignment of lower teeth, but there was no difference in upper teeth. Time to alignment Not measured Pain day 1
What is a group a dental wire?
Group A (n = 31 arches, upper/lower 14/17): 0155‐inch multistrand stainless steel (Dentaflex, Dentarium) Group B (n = 32 arches, upper/lower 19/13): 016/022‐inch medium force active martensitic NiTi (Titanium Heat Memory Wire, American Orthodontics)
Why do orthodontists use loops to increase the length of wire?
Increasing the length of wire using loops increases the flexibility of the arch wire to enable use as an initial aligning arch wire. This can be time consuming as each wire must be customised by the orthodontist for the individual patient.
What are the different types of orthodontic wires?
Currently, orthodontists principally use wires of four major base metal alloy types: stainless steel, cobalt-chromium-nickel, nickel-titanium and β-titanium (Table 4. 1).
Which orthodontic wire is best?
The most recent alloy to be adapted for use as an orthodontic wire is beta-titanium. These wires possess significantly greater springback than those made from stainless steel and a modulus of elasticity that falls between that of stainless steel and NiTi.
What is the purpose of the archwire?
The central function of the archwire is to shift the teeth into their proper positions. It is responsible for most movements that occur in the mouth during treatment.
What is NiTi wire?
Dr. Paul Sokolowski may use a heat-activated nickel-titanium (NiTi) wire in your orthodontic treatment. NiTi wires are designed to help your teeth move into their proper positions more effectively, making your treatment shorter and much more comfortable.
What are the 5 stages of braces?
Five Stages of an Orthodontic TreatmentConsultation Stage. ... Bonding/Banding Stage. ... Regular Adjustments Stage. ... Debanding Stage. ... Retainer Stage. ... If you are currently suffering from any of the cases mentioned earlier, your dentist will most certainly refer you to an orthodontist.
What is the last stage of braces?
The third and final phase of orthodontic treatment is the retention phase. This phase occurs once the teeth have moved into the desired position and the use of the dental appliance ceases.
When should I replace my archwire?
Prescribing class 3 elastics for 3 days (72 hours) can also help control the tendency for labial flaring of these anterior teeth. Each of these procedures can be accomplished with the initial archwire. Appointment intervals of 4 to 5 weeks are adequate.
Why do they put a thicker wire on braces?
A thicker wire is stronger, which usually creates more movement in the teeth than a thinner wire. Arch wires are often switched out at your follow-up appointments to change the tension on the teeth.
Are power chains the last step in braces?
Usually, power chains become part of your treatment after the first phase of alignment. They can be used to help align your teeth or correct your bite, but are most often used to close gaps between the teeth. You might have a gap after a tooth has been extracted.
What is Copper NiTi wire?
Introduction: Copper Nickel-Titanium (CuNiTi) is a relatively new composition of Nickel-Titanium (NiTi) archwires that was originally patented in 1991 as part of the Ormco line of wires. The patent has now recently expired and many other orthodontic companies are making their own CuNiTi wires.
Which NiTi wire has the highest flexibility?
Results: The mechanical resistance of the instruments tested was significantly different. TF were the most flexible instruments, followed by RaCe and ProFile Vortex (P < 0.01).
What is the first wire for braces?
Initial arch wires are the first arch wires to be inserted into the fixed appliance at the beginning of orthodontic treatment and are used mainly for the alignment of teeth by correcting crowding and rotations.
What is a gummetal archwire?
(i) Gummetal archwire could be useful in the initial stage of orthodontic treatment alternatively to NiTi wires. However, it shows some plastic deformation, which questions its superelasticity (ii) It is assumed that Gummetal alloy could be used in patients suffering from nickel allergy; all the atomic elements of the alloy are nontoxic and biocompatible (iii) Gummetal wire exhibits low bending strength, low fatigue limit, and high resilience. However, these properties do not affect the numbers of cycles to fracture (similar risk to wire fracture) (iv) Loss of applied force due to friction of Gummetal wire is comparable to SS and CoCr wires (v) TiNb wires might demonstrate appropriate torque moment and low tension values when they are used combined with edgewise appliances (GEAW technique) (vi) Gummetal archwire has a very low Young’s Modulus constant with the temperature with high tensile strength, which provides lower force than Nitinol and TMA but higher than Supercable wire
What is the purpose of gummetal?
Gummetal is a novel multifunctional alloy which possesses distinctive properties with the potential to refine and amend the efficacy of orthodontic treatment. The objective of this critical literature review was to investigate scientific evidence concerning the mechanical and clinical features of this recently manufactured beta-titanium ...
What is 0.016 niti?
The clinical efficiency of 0.016 Gummetal and 0.016 NiTi orthodontic wires during teeth alignment in the first two months of treatment was compared by Nordstrom et al. [ 10#N#B. Nordstrom, T. Shoji, W. C. Anderson et al., “Comparison of changes in irregularity and transverse width with nickel-titanium and niobium-titanium-tantalum-zirconium archwires during initial orthodontic alignment in adolescents: a double-blind randomized clinical trial,” The Angle Orthodontist, vol. 88, no. 3, pp. 348–354, 2018. View at: Publisher Site | Google Scholar#N#See in References#N#] in a prospective, double-blind randomized clinical trial. Twenty-eight patients were divided into two equal groups. During the treatment, digital scans were performed and then used to assess changes in Little’s Irregularity Index and the alteration in intercanine and intermolar widths. With Gummetal wire, there was 27% crowding reduction during the first month, and an additional 25% decrease in crowding was observed in the following month. There was no significant difference observed in the decrease in irregularity between the two groups over time. Moreover, there was no significant difference between the groups concerning the changes in intercanine and intermolar width.
What is gummetal made of?
It consists of titanium, niobium, tantalum, zirconium, and oxygen. Gummetal’s chemical composition (Ti-23Nb-0.7Ta-2Zr-1.2O) was based on its atomic valence theory [ 6.
Why do orthodontists use archwires?
Orthodontists use archwires in multibracket appliances in order to achieve a 3D control of tooth movement in the active phase of orthodontic treatment. The force moving the teeth is provided by the elasticity of orthodontic wire.
What is NiTi wire?
Its superelasticity and shape memory simplified the initial phase of orthodontic treatment. However, it is also almost impossible to bend which makes it inadequate for the middle and final phases of orthodontic treatment [ 2.
Who contributed to the design of the research, to the analysis of the results, and to the writing of the manuscript?
Krzysztof Schmeidl contributed to the design of the research, to the analysis of the results, and to the writing of the manuscript. Joanna Janiszewska-Olszowska designed and directed the project and contributed to the writing of the manuscript. Katarzyna Grocholewicz supervised the project. All authors read and approved the final manuscript.
What is an arch wire?
The initial arch wire is the first arch wire to be inserted into the fixed appliance at the beginning of the treatment and is used mainly for correcting crowding and minor tooth rotations.
What is fixed orthodontics?
Fixed orthodontic appliances (braces) consist of brackets bonded to the teeth that are connected by arch wires, which exert forces on the teeth. The first (initial) type of arch wire, inserted at the beginning of treatment, is for correcting crowded and twisted teeth.
What is an initial arch wire?
Initial arch wires are the first arch wires to be inserted into the fixed appliance at the beginning of orthodontic treatment and are used mainly for the alignment of teeth by correcting crowding and rotations.
Is stainless steel arch wire still used?
However, stainless steel arch wires are still used by a small proportion of orthodontists.
Is the study of arch wires biased?
The studies evaluated different initial arch wires, but they were poorly conducted or reported, or both, and their results are likely to be biased. The studies varied in a number of other aspects of orthodontic treatment, compared different types of initial arch wires and reported different outcomes at different times.
What is the best wire for orthodontics?
Stainless steel. Since its introduction to orthodontics in the 1930’s, stainless steel (SS) ar ch wires have remained a popular choice in orthodontics; as they offer many advantages such as: formability, biocompatibility, environmental stability, stiffness, resilience, and low cost [1, 3, 4]. One advantage of stainless steel is ...
Is Niti wire elastic?
Finally, some currently-marketed NiTi’s have been able to enhance on these properties, allowing for the creation of an arch wire which is dead soft at room temperature, but in the environment of higher temperatures, such as the oral cavity, it becomes elastic [2].
Is stainless steel arch wire durable?
It is through these properties, as discussed above, that stainless steel arch wire continues to offer a high degree of versatility and durability , remaining as one of the most widely used arch wires in orthodontics.
