Improvement of binding friction between stainless steel orthodontic wire and bracket by performing Rh-PTFE composite plating on the wire
Purpose: During orthodontic treatment, it is important to ensure that the least frictional force is applied to the teeth to ensure optimal tooth movement. We applied electrolytic rhodium-polytetrafluoroethylene (Rh-PTFE) composite plating to stainless steel (SS) orthodontic wires with the aim of sup...
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Published in | Orthodontic waves (English ed.) Vol. 79; no. 1; pp. 39 - 47 |
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Main Authors | , , , , , , |
Format | Journal Article |
Language | English |
Published |
Taylor & Francis
27.02.2020
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Subjects | |
Online Access | Get full text |
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Summary: | Purpose: During orthodontic treatment, it is important to ensure that the least frictional force is applied to the teeth to ensure optimal tooth movement. We applied electrolytic rhodium-polytetrafluoroethylene (Rh-PTFE) composite plating to stainless steel (SS) orthodontic wires with the aim of suppressing friction and corrosion in the wire and facilitating the longevity of treatment.
Materials and methods: SS orthodontic wires were plated with a polytetrafluoroethylene (PTFE) particle suspended solution. The surface colour was changed to black with Rh-PTFE plating, and a homogeneous distribution of PTFE particles was observed in the plated layer using scanning electron microscopy (SEM).
Results: The friction of Rh-PTFE plated wire with the SS bracket decreased to ½ to 1/3
rd
of the original force by increasing the PTFE content in the plated layer, despite the increase in surface roughness with plating. Corrosion suppression was also observed when Rh-PTFE plating was applied to a nickel wire.
Conclusion: Ensuring smooth movement between the wire and bracket decreases the risk of metal dissolution, which can be effectively be achieved with Rh-PTFE plating. This finding will significantly assist orthodontists in choosing plated wires to ensure a more effective course of treatment for their patients in the future. |
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ISSN: | 1344-0241 1878-1837 |
DOI: | 10.1080/13440241.2020.1733180 |