In-vitro evaluation of the material characteristics of stainless steel and beta-titanium orthodontic wires

Verstrynge, Astrid; Humbeeck, Jan Van; Willems, Guy

doi:10.1016/j.ajodo.2004.12.030

Cited by 79 publications

(79 citation statements)

References 31 publications

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“…A recent study that investigated stainless steel wires used in orthodontic practice found that most products were AISI Type 304 and that AISI Type 316L (low carbon) and nickelfree ASTM Type F2229 were also available [25]. While standard physical metallurgy textbooks consider the elastic modulus to be a structure-insensitive property, research has shown that the permanent deformation and heat treatments involved with the wire drawing process can substantially affect the elastic modulus of stainless steel orthodontic wires [26,27].…”

Section: Stainless Steel Orthodontic Wiresmentioning

confidence: 99%

“…A recent study [25] of commercially available titanium-based orthodontic wires revealed that most products are Beta III alloys [21] containing approximately 11.5 Mo, 6 Zr, and 4.5 Sn, similar to the original beta-titanium wire introduced to orthodontics [33,34]. Beta C [21] and Ti45Nb beta-titanium and Ti-6Al-4V (alpha-beta) wire products are also available [25].…”

Section: Beta-titanium and Other Titanium-based Orthodontic Wiresmentioning

confidence: 99%

See 1 more Smart Citation

Heat Treatment of Dental Alloys: A Review

Brantley¹,

Alapati²

2012

Metallurgy - Advances in Materials and Processes

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Section: Stainless Steel Orthodontic Wiresmentioning

confidence: 99%

Section: Beta-titanium and Other Titanium-based Orthodontic Wiresmentioning

confidence: 99%

Heat Treatment of Dental Alloys: A Review

Brantley¹,

Alapati²

2012

Metallurgy - Advances in Materials and Processes

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“…Even in particular cases, some metallic ions from traditional microcrystalline 304ss dissolved out and lead toxic or side effects around [8]. In addition, unsatisfactory cyclic strain and stress fatigue [9] and wear [4] characteristics have been other limits of its wider usage. Bulk nanostructured metal-materials, typically nanocrystalline Ti alloys, are highlighted to be the next generation biomaterials [10] for their unique manifestation such as physical [11], electrochemical [12] and biocompatible properties [13].…”

Section: Introductionmentioning

confidence: 99%

“…It has been well used in biomedical areas typically as surgical implant [1], cardiac peacemaker electrodes [2], dental fixation as plates or screws [3] and orthodontic archwires or brackets [4] due to its well-behaved corrosion resistance, excellent mechanical performance, favorable bio-affinity, as well as good machinability and low cost. Although traditional microcrystalline 304ss implants provide better biomechanical properties than other biomedical metals such as cobalt chromium alloys, titanium [5], localized corrosion of microcrystalline 304ss implants like pitting or stress corrosion were recently reported within the environment of the human body [6,7].…”

Section: Introductionmentioning

confidence: 99%

<i>In Vitro</i> Corrosion and Haemocompatibility of Bulk Nanocrystalline 304 Stainless Steel by Severe Rolling

Nie

Wang

Shi

et al. 2010

MSF

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Abstract. Bulk nanocrystalline 304 stainless steel (nanocrystalline 304ss) discs had been successfully prepared by the commercial microcrystalline 304 stainless steel (microcrystalline 304ss) plate using severe rolling technique. Micro-hardness was measured to reveal the different mechanical behavior after the severe plastic deformation. The electrochemical corrosion resistance and ion release behavior after immersion of the samples were investigated in Hank's solution for its potential use as implant and orthodontic appliance in body. Furthermore, murine fibroblast cells were indirectly employed to detect cytotoxicity by co-incubation with the extraction from the given materials. Haemocompatibility, consisting of hemolysis test and adhesion of the platelets, was also measured with fresh human whole blood and platelet-rich plasma respectively. Polarization resistance trials indicate that nanocrystalline 304ss is more corrosion resistant in the Hank's solution, with lower current density and superficial corrosion morphologies. The release values of the biotoxic ions after immersion do not exceed the set limit and turn to be well below the critical value necessary to induce allergy and below daily dietary intake level. Cellular interaction is observed via the proliferated feature of the cell line. Hemolysis and platelet adhesion results elucidates that nanocrystalline 304ss is biological and hematologic compatible.

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“…[7][8][9][10][11] To reduce surface roughness, a nitrogen ion implantation technique has been used. However, some authors [12][13][14] have questioned the effectiveness of this process in the reduction of friction.…”

Section: Introductionmentioning

confidence: 99%

Mechanical properties of beta-titanium wires

Gurgel

Pinzan-Vercelino

Powers³

2011

The Angle Orthodontist

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Objective: To evaluate the force-deflection behavior of six beta-titanium wires using a three-point bending test. Materials and Methods: The wires timolium (TIM), titanium molybdenum (ORG), beta titanium (BETA), resolve (RES), titanium molybdenum alloy (TMA), and TMA low friction (TMAL) were adapted into two stainless steel brackets, with no angulation or torque. Both brackets were bonded to an acrylic jig with a 10-mm interbracket distance. A testing machine (Instron) applied deflections of 0.2 to 2.0 mm. Force-deflection diagrams were determined from a passive position to an activation of 2 mm and then during deactivation. Forces of activation and deactivation at a deflection of 1 mm were compared by analysis of variance. Results: Results demonstrated that significant differences (P , .05) in force were observed among wires. During activation, forces for the wires were ranked from lowest to highest as TMAL5TMA5RES,ORG5BETA,TIM. During deactivation, forces for the wires were ranked from lowest to highest as TIM,ORG5BETA,RES5 TMA,TMAL. The wires exhibited similar activation-deactivation diagrams. Conclusion: This study revealed significant differences in force during activation and deactivation among the six types of beta-titanium wires tested. (Angle Orthod. 2011;81:478-483.)

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In-vitro evaluation of the material characteristics of stainless steel and beta-titanium orthodontic wires

Cited by 79 publications

References 31 publications

Heat Treatment of Dental Alloys: A Review

Heat Treatment of Dental Alloys: A Review

<i>In Vitro</i> Corrosion and Haemocompatibility of Bulk Nanocrystalline 304 Stainless Steel by Severe Rolling

Mechanical properties of beta-titanium wires

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