The Effect of Mouthwashes on the Corrosion Resistance of Stainless Steel Wire

Mohamed Abdul Sattar Al saqer, Wael Abd Al-Razzaq Al-Waeli


Background: Stainless steel wires are widely used in fixed orthodontic appliance. In order to have good oral cleaning, an optimum orthodontic force, and desirable biological response and tooth movement, the current study was hence carried out to investigate the impact of Chlorhexidine and Listerine on the surface characteristics of stainless steel wire.

Materials and methods: The effect of chemicals was studied through immersing the wires in the solutions for 1.5 hour.  The distilled water was considered as control. The samples consisted of 10 wire pieces in the form of U shape with dimensions of (25mm length of bridge,10mm length of arms). Such wires were cut and their straight form were used for corrosion test. Wires were then embedded in base of cold cure acrylic resin ( 3mm thickness,10mm width,65mm length). Next, The wires were connected to conductor rod. A potention state equipment was utilized for testing the samples and a Nikon digital optical microscope was used to identify the surface changes. ANOVA and LSD tests were utilized for statistical analysis. 

Results:  the results indicated that the Listerine group presented the highest mean of corrosion resistance; on the other hand, chlorhexidine group created a greater value of mean in comparison to control group. Furthermore, highly significant differences were observed between two groups (P<0.01). Moreover, there were significant differences among all groups (P<0.01).

Conclusion: The Listerine has a significant effect on the surface corrosion of stainless steel wire compared to chlorhexidine. The optical microscope found that there was an increase in presence of pit and scratched areas with Listerine compared with Chlorhexidine. 


mouthwashes; stainless steel wire; corrosion resistances

Full Text:



Forsberg C, Brattstrom V, Malmberg E, Nord CE. Ligature wires and elastomeric rings: Two methods of ligation, and their association with microbial colonization of Streptococcus mutans and lactobacilli. Eur J Orthod. 1991; 13:416–20.

Parahitiyawa NB, Jin LJ, Leung WK, Yam WC, Samaranayake LP. Microbiology of odontogenic bacteremia: Beyond endocarditis. Clin Microbiol Rev. 2009; 22:46–64.

Glans R, Larsson E, Ogaard B. Longitudinal changes in gingival condition in crowded and no crowded dentitions subjected to fixed orthodontic treatment. Am J Orthod Dentofacial Orthop. 2003; 124:679–82.

Batoni G, Pardini M, Giannotti A, Ota F, Giuca MR, Gabriele M, et al. Effect of removable orthodontic appliances on oral colonisation by mutans streptococci in children. Eur J Oral Sci. 2001; 109:388–92.

Hobson RS, Clark JD. How UK orthodontists advise patients on oral hygiene. Br J Orthod. 1998;25(1):64-6.

Brightman LJ, Terezhalmy GT, Greenwell H, Jacobs M, Enlow DH. The effects of a 0.12% chlorhexidine gluconate mouthrinse on orthodontic patients aged 11 through 17 with established gingivitis. Am J Orthod Dentofacial Orthop. 1991;100(4):324-9.

Pontier JP, Pine C, Jackson DL, DiDonato AK, Close J, Moore PA. Efficacy of a prebrushing rinse for orthodontic patients. Clin Prev Dent. 1990;12(3):12-7.

Rostoker W, Pretzel CW, Galante JO. Couple corrosion among alloys for skeletal prostheses. J Biomed Mater Res. 1974; 8:407.

9Kim H, Johnson JW. Corrosion of stainless steel, nickel-titanium, coated nickel-titanium, and titanium orthodontic wires. Angle Orthod. 1999; 69:39–44.

Suarez C, Vilar T, Sevilla P, Gil J. In vitro corrosion behaviour of lingual orthodontic arch wires. Int J Corros. 2011; 132:1–9.

Pulikkottil V, Chidambaram S , Bejoy P, Femin P, Paul P, Rishad M. Corrosion resistance of stainless steel, nickel-titanium, titanium molybdenum alloy, and ion-implanted titanium molybdenum alloy arch wires in acidic fluoride-containing artificial saliva: An in vitro study. J Pharm Bio allied Sci. 2016; 8(Suppl 1): S96–S99.

Buckthal J. Kusy R. Effects of Cold Disinfectants on the Mechanical Properties and the Surface Topography of Nickel-Titanium Arch Wires. Am J Orthod Dentofacial Orthop.1988; 94 (2), 117-122.

Omidkhoda M; Poosti M; Sahebnasagh Z ; Zebarjad S; Sahebnasagh Z. Effects of three different mouthwashes on the surface characteristics of nickel-titanium and Stainless steel arch wires in orthodontics. Journal of dental materials and techniques. 2017; 6, (1), , 19-26

Nik T, Hooshmand t, Farazdaghi H, Mehrabi A, Razavi E. effect of chlorohexidine containing prophylactic agent on surface characterization and frictional resistance between orthodontic brackets and archwires: an in vitro study.. pro ortho.2013:14(1):48-55

Anusavice, K.J Phillips. Science of dental materials.10th Ed U.S.A. Philadelphia, W.B, Saunders Co.2003; P. 211,220,235,23.

Denizoglu S, Duymus ZY, Akyalcin S. Evaluation of ion release from two base metal alloys at various pH levels. J. Inter. Med. Res.2004; 32(1): 33-38.

Huang HH. Surface characterization of passive film on NiCr-based dental casting alloys. Biomaterials.2002; 24(9): 1575-1582.

Reclarul L, luthy A, Eschler PY, Blatter J. Corrosion behavior of Co –Cr dental alloy doped with precious metal. Biomaterials. 2005;26(21):4358-65..

Schweitzer PA. Fundamentals of metallic corrosion: Atmospheric and media corrosion of metals. Corrosion Engineering Handbook. New York: CRC Press; 2006. pp 128-132.



  • There are currently no refbacks.