Effect of Sodium Fluoride Mouthwash on the Frictional Resistance of Orthodontic Wires
Objectives: The friction between the brackets and orthodontic wire during sliding mechanics inflicts difficulties such as decreasing the applied force and tooth movement and also the loss of anchorage. Therefore, many studies have focused on the factors that affect the friction. The purpose of this study was to assess the effect of 0.05% sodium fluoride mouthwash on the friction between orthodontic brackets and wire.
Materials and Methods: Four types of orthodontic wires including rectangular standard stainless steel (SS), titanium molybdenum alloy (TMA), nickel-titanium (NiTi) and copper-nickel-titanium (Cu-NiTi) were selected. In each group, half of the samples were immersed in 0.05% sodium fluoride mouthwash and the others were immersed in artificial saliva for 10 hours. An elastomeric ligature was used for ligating the wires to brackets. The frictional test was performed in a universal testing machine at the speed of 10 mm/minute. Two-way ANOVA was used for statistical analysis of the friction rate.
Results: The friction rate was significantly higher after immersion in 0.05% sodium fluoride mouthwash in comparison with artificial saliva (P=0.00). Cu-NiTi wire showed the highest friction value followed by TMA, NiTi and SS wires.
Conclusions: According to the results of the current study, 0.05% sodium fluoride mouthwash increased the frictional characteristics of all the evaluated orthodontic wires.
- Bandeira AM, dos Santos MP, Pulitini G, Elias CN, da Costa MF. Influence of thermal or chemical degradation on the frictional force of an experimental coated NiTi wire. Angle Orthod. 2011 May;81(3):484-9.
- Fidalgo TK, Pithon MM, Maciel JV, Bolognese AM. Friction between different wire bracket combinations in artificial saliva--an in vitro evaluation. J Appl Oral Sci. 2011 Jan-Feb;19(1):57-62.
- Tecco S, Tete S, Festa F. Friction between archwires of different sizes, cross-section and alloy and brackets ligated with low-friction or conventional ligatures. Angle Orthod. 2009 Jan;79(1):111-6.
- Wichelhaus A, Geserick M, Hibst R, Sander FG. The effect of surface treatment and clinical use on friction in NiTi orthodontic wires. Dent Mater. 2005 Oct;21(10):938-45.
- Kusy RP, Whitley JQ, Mayhew MJ, Buckthal JE. Surface roughness of orthodontic archwires via laser spectroscopy. Angle Orthod. 1988 Jan;58(1):33-45.
- Huang HH. Variation in surface topography of different NiTi orthodontic archwires in various commercial fluoride-containing environments. Dent Mater. 2007 Jan;23(1):24-33.
- Kapila S, Angolkar PV, Duncanson MG Jr, Nanda RS. Evaluation of friction between edgewise stainless steel brackets and orthodontic wires of four alloys. Am J Orthod Dentofacial Orthop. 1990 Aug;98(2): 117-26.
- Husmann P, Bourauel C, Wessinger M, Jager A. The frictional behavior of coated guiding archwires. J Orofac Orthop. 2002 May;63(3):199-211.
- Clocheret K, Willems G, Carels C, Celis JP. Dynamic frictional behaviour of orthodontic archwires and brackets. Eur J Orthod. 2004 Apr;26(2):163-70.
- Kao CT, Ding SJ, Wang CK, He H, Chou MY, Huang TH. Comparison of frictional resistance after immersion of metal brackets and orthodontic wires in a fluoride-containing prophylactic agent. Am J Orthod Dentofacial Orthop. 2006 Nov;130(5): 568.e1-9.
- Prashant PS, Nandan H, Gopalakrishnan M. Friction in orthodontics. J Pharm Bioallied Sci. 2015 Aug;7(Suppl 2):S334-8.
- Walker MP, White RJ, Kula KS. Effect of fluoride prophylactic agents on the mechanical properties of nickel-titanium-based orthodontic wires. Am J Orthod Dentofacial Orthop. 2005 Jun;127(6):662-9.
- Kwon YH, Jang CM, Jang JH, Park JH, Kim TH, Kim HI. Effect of fluoride released from fluoride-containing dental restoratives on NiTi orthodontic wires. Dent Mater J. 2008 Jan;27(1):133-8.
- Schiff N, Grosgogeat B, Lissac M, Dalard F. Influence of fluoridated mouthwashes on corrosion resistance of orthodontics wires. Biomaterials. 2004;25(19):4535-42.
- Li X, Wang J, Han E, Ke W. Influence of fluoride and chloride on corrosion behavior of NiTi orthodontic wires. Acta Biomater. 2007;3(5):807-15.
- Kwon YH, Cho HS, Noh DJ, Kim HI, Kim KH. Evaluation of the effect of fluoride‐containing acetic acid on NiTi wires. J Biomed Mater Res B Appl Biomater. 2005 Jan;72(1):102-8.
- Suarez C, Vilar T, Gil J, Sevilla P. In vitro evaluation of surface topographic changes and nickel release of lingual orthodontic archwires. J Mater Sci Mater Med. 2010 Feb;21(2):675-83.
- Nanjundan K, Vimala G. Evaluation of frictional resistance and surface characteristics after immersion of orthodontic brackets and wire in different chemical solutions: A comparative in vitro study. Indian J Dent Res. 2016 Sep-Oct;27(5):513-520.
- Alavi S, Farahi A. Effect of fluoride on friction between bracket and wire. Dent Res J (Isfahan). 2011 Dec;8(Suppl 1):S37-42.
- Abbassy MA. Fluoride influences nickel-titanium orthodontic wires' surface texture and friction resistance. J Orthod Sci. 2016 Oct-Dec;5(4):121-126.
|Issue||Vol 14, No 5 (2017)|
|Fluoride Friction Orthodontics Saliva|
|Rights and permissions|
|This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.|