منابع مشابه
Alignment Efficiency of Superelastic Coaxial Nickel-Titanium
The preliminary phase of any orthodontic treatment with fixed appliances is the alignment and leveling of teeth. Leveling is the process in which the incisal edges of the anterior teeth and the buccal cusps of the posterior teeth are placed on an ideal horizontal level; and alignment is the lining up of teeth of an arch in order to achieve normal contact point relationship. In the alignment pha...
متن کاملLoad-deflection characteristics of superelastic nickel-titanium wires.
OBJECTIVE To determine the mechanical properties of commercially available thermodynamic wires and to classify these wires mathematically into different groups. MATERIALS AND METHODS The samples examined were 48 nickel-titanium (NiTi) alloy orthodontic wires commercially available from five manufacturers. These samples included 0.016-inch, 0.016- x 0.022-inch, 0.017- x 0.025-inch, and 0.018- ...
متن کاملNickel Titanium and Nickel Titanium Hafnium Shape Memory Alloy thin films
Shape Memory Alloys (SMAs) coatings of NiTi and NiTiHf have been deposited onto Si substrates using pulse DC sputtering. Coatings of NiTi with compositions containing 45 to 65 at% Ti have been fabricated by co-sputtering NiTi with Ti. NiTiHf coatings with Hf compositions ranging from 2 to 30 at% Hf have been fabricated by co-sputtering NiTi with Hf. XRD results reveal the as-deposited coatings ...
متن کاملInfluence of the nickel-titanium alloy components on biological functions
Background Nickel-titanium alloy is applied to biomaterials such dental wire, stents and so on, because they have outstanding capacities for corrosion-resistant, adequate mechanical strength and shape-memory [1,2]. On the other hand they have a risk of metal allergy because of leaking nickel ions from them in aqueous conditions. It is not clear the reason why nickel causes allergy and what the ...
متن کاملEffect of Saliva on Load-Deflection Characteristics of Superelastic Nickel-Titanium Orthodontic Wires
OBJECTIVE Most published results about the characteristics of NiTi wires are based on the mechanical laboratory tests on the as-received wires.The purpose of this study was to investigate the effect of saliva on load-deflection characteristics of superelastic NiTi wires. MATERIALS AND METHODS In this experimental study, 15 wires of three kinds of superelastic NiTi wires (Sentalloy, Force I an...
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ژورنال
عنوان ژورنال: MATERIALS TRANSACTIONS
سال: 2001
ISSN: 1345-9678,1347-5320
DOI: 10.2320/matertrans.42.141