Comparative study on corrosion behaviour of Nitinol and stainless steel orthodontic wires in simulated saliva solution in presence of fluoride ions

2013 ◽  
Vol 33 (4) ◽  
pp. 2084-2093 ◽  
Author(s):  
M. Mirjalili ◽  
M. Momeni ◽  
N. Ebrahimi ◽  
M.H. Moayed
Keyword(s):  
Stainless Steel ◽  
Comparative Study ◽  
Corrosion Behaviour ◽  
Orthodontic Wires ◽  
Fluoride Ions

Structure and corrosion behaviour of nanocrystalline cobalt-molybdenum alloys electrodeposited on 316L stainless steel

2015 ◽  
Vol 39 (3-4) ◽  
pp. 167-174
Author(s):  
Michal Latkiewicz ◽  
Halina Krawiec ◽  
Vincent Vignal ◽  
Paulina Erazmus-Vignal
Keyword(s):  
Stainless Steel ◽  
316L Stainless Steel ◽  
Corrosion Behaviour ◽  
Molybdenum Alloys

Corrosion Behaviour and Surface Modification of Intra-orally Engaged Orthodontic Ni-Ti Wires

2017 ◽  
Vol 68 (5) ◽  
pp. 1077-1080
Author(s):  
Krisztina Martha ◽  
Alexandru Ogodescu ◽  
Cristina Ioana Bica ◽  
Cristina Molnar Varlam
Keyword(s):  
Chemical Structure ◽  
Corrosion Behaviour ◽  
Sem Analysis ◽  
Orthodontic Appliance ◽  
Orthodontic Wires ◽  
Surface Corrosion ◽  
Patient Health ◽  
Almost All ◽  
Scanning Electron Microscope Method ◽  
Surface Changes

Almost all orthodontic wires suffer from corrosion as they are intra-orally engaged. This chemical structure alteration appears on the surface of these wires, surface topography can be easily visualised with scanning electron microscope method. The aim of our study was to assess the intraoral corrosion of the retrieved orthodontic Ni-Ti archwires. Archwire retrieval procedure yielded approximately 30 retrieved wires, placed intra-orally for 1-5 months. SEM analysis was performed and surface changes were interpreted. Our SEM results showed, that surface corrosion and pitting can be seen on the surface of retrieved Ni-Ti wires, the depth of corrosion depends on the time wires have been engaged in the oral cavity. With regards of metal liberation consequently surface corrosion, practitioners should be avare of these chemical changes which can affect the resistence of the orthodontic appliance and patient health.

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