Meier, Miriam Julia, Bourauel, Christoph, Roehlike, Jan, Reimann, Susanne, Keilig, Ludger and Braumann, Bert (2014). Friction behavior and other material properties of nickel-titanium and titanium-molybdenum archwires following electrochemical surface refinement. J. Orofac. Orthop., 75 (4). S. 308 - 319. MUNICH: URBAN & VOGEL. ISSN 1615-6714

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Abstract

The aim of this work was to investigate whether electrochemical surface treatment of nickel-titanium (NiTi) and titanium-molybdenum (TiMo) archwires (OptoTherm (TM) and BetaTitan (TM); Ortho-Dent Specials, Kisdorf, Germany) reduces friction inside the bracket-archwire complex. We also evaluated further material properties and compared these to untreated wires. The material properties of the surface-treated wires (Optotherm/LoFrix (TM) and BetaTitan/LoFrix (TM)) were compared to untreated wires made by the same manufacturer (see above) and by another manufacturer (Neo SentalloyA (R); GAC, Bohemia, NY, USA). We carried out a three-point bending test, leveling test, and friction test using an orthodontic measurement and simulation system (OMSS). In addition, a pure bending test was conducted at a special test station, and scanning electron micrographs were obtained to analyze the various wire types for surface characteristics. Finally, edge beveling and cross-sectional dimensions were assessed. Force losses due to friction were reduced by 10 percentage points (from 36 to 26%) in the NiTi and by 12 percentage points (from 59 to 47%) in the TiMo wire specimens. Most of the other material properties exhibited no significant changes after surface treatment. While the three-point bending tests revealed mildly reduced force levels in the TiMo specimens due to diameter losses of roughly 2%, these force levels remained almost unchanged in the NiTi specimens. Compared to untreated NiTi and TiMo archwire specimens, the surface-treated specimens demonstrated reductions in friction loss by 10 and 12 percentage points, respectively.

Item Type: Journal Article
Creators:
CreatorsEmailORCIDORCID Put Code
Meier, Miriam JuliaUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Bourauel, ChristophUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Roehlike, JanUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Reimann, SusanneUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Keilig, LudgerUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
Braumann, BertUNSPECIFIEDUNSPECIFIEDUNSPECIFIED
URN: urn:nbn:de:hbz:38-434434
DOI: 10.1007/s00056-014-0225-9
Journal or Publication Title: J. Orofac. Orthop.
Volume: 75
Number: 4
Page Range: S. 308 - 319
Date: 2014
Publisher: URBAN & VOGEL
Place of Publication: MUNICH
ISSN: 1615-6714
Language: English
Faculty: Unspecified
Divisions: Unspecified
Subjects: no entry
Uncontrolled Keywords:
KeywordsLanguage
ARCH WIRE; ORTHODONTIC WIRES; STAINLESS-STEEL; BRACKET; FORCES; COMBINATIONS; ALLOYSMultiple languages
Dentistry, Oral Surgery & MedicineMultiple languages
URI: http://kups.ub.uni-koeln.de/id/eprint/43443

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