Nickel Titanium Wires
Mostrando 1-12 de 16 artigos, teses e dissertações.
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1. Do laypersons perceive aesthetic differences between coated and uncoated orthodontic archwires?
RESUMO Introdução: rotineiramente na terapia ortodôntica fixa, utilizam-se braquetes estéticos combinados com fios metálicos, principalmente devido a algumas desvantagens no uso clínico dos fios estéticos. A percepção estética dos leigos nessa situação precisa ser explorada na literatura. Objetivo: o objetivo deste estudo transversal foi aval
Dental Press J. Orthod.. Publicado em: 2019-02
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2. Characterization and coating stability evaluation of nickel-titanium orthodontic esthetic wires: an in vivo study
Abstract The objective of this study was to compare coating dimensions and surface characteristics of two different esthetic covered nickel-titanium orthodontic rectangular archwires, as-received from the manufacturer and after oral exposure. The study was designed for comparative purposes. Both archwires, as-received from the manufacturer, were observed usi
Braz. oral res.. Publicado em: 21/08/2017
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3. Evaluation of deflection forces of orthodontic wires with different ligation types
Abstract The aim of this study was to evaluate deflection forces of orthodontic wires of different alloys engaged into conventional brackets using several ligation types. Stainless steel, conventional superelastic nickel-titanium and thermally activated nickel-titanium archwires tied into conventional brackets by a ring-shaped elastomeric ligature (RSEL), a
Braz. oral res.. Publicado em: 03/07/2017
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4. Deflection and Flexural Strength Effects on the Roughness of Aesthetic-Coated Orthodontic Wires
Resumo O objetivo foi avaliar a resistência a flexão e os efeitos da deflexão na rugosidade de superfície de fios ortodônticos estéticos. A amostra foi composta por 70 segmentos de fios NiTi calibre 0,014 polegadas: revestidos por politetrafluoretileno (PTFE) (Titanol Cosmetic-TC, Flexy Super Elastic Esthetic-FSE, Aesthetic Nickel Titanium Wire-ANT); r
Braz. Dent. J.. Publicado em: 2017-02
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5. Mechanical Performance of Nickel-titanium Archwires
The purpose of the present work is to compare the mechanical properties of commercially available NiTi orthodontic archwires lots. Superelastic (SE) and heat-activated (HA) NiTi archwires from two lots of six manufacturers (3M, GAC, Tp, Orthosource, Orthometric and Morelli) were partitioned into eleven groups (n=132) and tested under three-point bending test
Mat. Res.. Publicado em: 03/11/2015
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6. Degradation of orthodontic wires under simulated cariogenic and erosive conditions
This study examined the effect of cariogenic and erosive challenges (CCs and ECs, respectively) on the degradation of copper-nickel-titanium (CuNiTi) orthodontic wires. Sixty wire segments were divided into four treatment groups and exposed to CCs, ECs, artificial saliva, or dry storage (no-treatment control). CC and EC were simulated using a demineralizing
Braz. oral res.. Publicado em: 04/08/2014
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7. Frictional resistance of self-ligating versus conventional brackets in different bracket-archwire-angle combinations
Objective: To compare the influence of archwire material (NiTi, beta-Ti and stainless steel) and brackets design (self-ligating and conventional) on the frictional force resistance. Material and Methods: Two types of brackets (self-ligating brackets - Smartclip, 3M/Unitek - and conventional brackets - Gemini, 3M/Unitek) with three (0, 5, and 10 degrees) s
J. Appl. Oral Sci.. Publicado em: 2014-06
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8. Relationship between friction force and orthodontic force at the leveling stage using a coated wire
The relationship between orthodontic force and friction produced from an archwire and brackets affects the sliding of the wire in the leveling stage. Objective: The purpose of this study was to evaluate the relationship between force and friction in a small esthetic nickel-titanium (Ni-Ti) wire. Material and Methods: Five esthetic wires (three coated a
J. Appl. Oral Sci.. Publicado em: 2013-12
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9. Avaliação da deflexão elástica de fios ortodônticos de níquel-titânio, calibre 0,014 / Load-deflection study of caliber 0.014 nickel-titanium orthodontic wires
OBJECTIVE: The purpose of this study was to present the magnitude and the constancy of the forces released by nickel-titanium orthodontic wires, used to treat dental crowding. Another purpose was to compare the most usual types of bending tests used to evaluate these wires: 3-point test and clinical simulation device. MATERIAL AND METHODS: Eleven groups of o
IBICT - Instituto Brasileiro de Informação em Ciência e Tecnologia. Publicado em: 03/07/2012
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10. Nickel-titanium alloys: a systematic review
OBJECTIVE: A systematic review on nickel-titanium wires was performed. The strategy was focused on Entrez-PubMed-OLDMEDLINE, Scopus and BioMed Central from 1963 to 2008. METHODS: Papers in English and French describing the behavior of these wires and laboratorial methods to identify crystalline transformation were considered. A total of 29 papers were select
Dental Press Journal of Orthodontics. Publicado em: 2012-06
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11. Comparative analysis of load/deflection ratios of conventional and heat-activated rectangular NiTi wires
OBJECTIVE: This study compared the load-deflection ratios between 0.019 x 0.025-in rectangular orthodontic wires using 5 conventional preformed nickel-titanium (NiTi) and 5 heat-activated NiTi archwires from four different manufacturers (Abzil, Morelli, 3M Unitek and Ormco), totaling 40 archwires. The archwires were placed in typodonts without tooth # 11 and
Dental Press Journal of Orthodontics. Publicado em: 2012-06
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12. Comparative study of classic friction among different archwire ligation systems
OBJECTIVE: To describe and compare three alternative methods for controlling classical friction: Self-ligating brackets (SLB), special brackets (SB) and special elastomeric ligatures (SEB). METHODS: The study compared Damon MX, Smart Clip, In-Ovation and Easy Clip self-ligating bracket systems, the special Synergy brackets and Morelli's twin bracket with spe
Dental Press Journal of Orthodontics. Publicado em: 2012-06