Dental and Medical Problems

Dent. Med. Probl.
Index Copernicus (ICV 2018) – 113.05
MNiSW – 20
Average rejection rate – 62.63%
ISSN 1644-387X (print)
ISSN 2300-9020 (online)
Periodicity – quarterly

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Dental and Medical Problems

2019, vol. 56, nr 2, April-June, p. 173–177

doi: 10.17219/dmp/105832

Publication type: original article

Language: English

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Creative Commons BY-NC-ND 3.0 Open Access

The effect of simulated erosive conditions on the frictional behavior of different orthodontic bracket-wire combinations

Wpływ symulowanych warunków erozyjnych na charakterystykę cierną różnych kombinacji zamka i drutu ortodontycznego

Tomasz Stefański1,A,B,C,D,E,F, Anna Kloc-Ptaszna2,B,C,E,F, Lidia Postek-Stefańska3,B,C,D,E,F

1 Department of Orthodontics, Medical University of Silesia, Zabrze, Poland

2 Institute of Engineering Materials and Biomaterials, Silesian University of Technology, Gliwice, Poland

3 Chair and Department of Pediatric Dentistry, Medical University of Silesia, Zabrze, Poland


Background. Frictional resistance is an important parameter in orthodontics that influences the effectiveness of archwire-guided tooth movement. Since the consumption of dietary acids has increased considerably over the last 2 decades, there is a rationale for investigating the process of degradation of orthodontic materials in an acidic environment and its effect on clinical efficiency.
Objectives. The aim of this study was to evaluate the effect of simulated erosive conditions on the frictional behavior between the brackets of 3 different materials and 3 different wire alloys.
Material and Methods. Three types of twin orthodontic brackets (stainless steel (SS), monocrystalline ceramic and titanium) and 3 types of archwires of the same dimension (SS, nickel-titanium (Ni-Ti) and beta-titanium (titanium-molybdenum alloy – TMA) were tested in 9 different combinations under simulated erosive and non-erosive conditions (18 groups, n = 10). Bracket-wire specimens in the erosivecondition groups were subjected to a pH cycling regimen with 1% citric acid and artificial saliva for 5 consecutive days. Bracket-wire specimens from the non-erosive-condition groups were incubated only in artificial saliva for 5 days. Static and kinetic friction were determined by measuring the force needed to move the wire through the bracket. A three-way analysis of variance and pairwise comparisons with the Student–Newman–Keuls test were performed.
Results. Irrespective of the conditions, SS brackets with SS wire demonstrated significantly lower mean static and kinetic frictional resistance than other bracket-wire combinations (p < 0.01). Ceramic and titanium brackets generated high frictional forces with all 3 types of wire tested. Erosive conditions did not significantly influence static and kinetic frictional resistance in all bracket-wire groups.
Conclusion. Erosive conditions do not affect the frictional behavior of SS, Ni-Ti and TMA orthodontic archwires at a clinically significant level.

Key words

friction, dental erosion, corrosion, orthodontic brackets, orthodontic archwires

Słowa kluczowe

tarcie, erozja zębów, korozja, zamki ortodontyczne, łuki ortodontyczne

References (33)

  1. Lussi A, Megert B, Shellis RP, Wang X. Analysis of the erosive effect of different dietary substances and medications. Br J Nutr. 2012;107(2):252–262.
  2. Bartlett DW, Lussi A, West NX, Bouchard P, Sanz M, Burgeois D. Prevalence of tooth wear on buccal and lingual surfaces and possible risk factors in young European adults. J Dent. 2013;41(11):1007–1013.
  3. Oncag G, Tuncer AV, Tosun YS. Acidic soft drinks effects on the shear bond strength of orthodontic brackets and a scanning electron microscopy evaluation of the enamel. Angle Orthod. 2005;75(2):247–253.
  4. Hammad SM, Enan ET. In vivo effects of two acidic soft drinks on shear bond strength of metal orthodontic brackets with and without resin infiltration treatment. Angle Orthod. 2013;83(4):648–652.
  5. Medeiros MID, Carlo HL, Santos RLD, et al. TiF4 varnish protects the retention of brackets to enamel after in vitro mild erosive challenge. J Appl Oral Sci. 2018;26:e20170222.
  6. Shahabi M, Jahanbin A, Esmaily H, Sharifi H, Salari S. Comparison of some dietary habits on corrosion behavior of stainless steel brackets: An in vitro study. J Clin Pediatr Dent. 2011;35(4):429–432.
  7. Huang HH. Surface characterization and corrosion resistance of nickel-titanium orthodontic archwire in artificial saliva of various degrees of acidity. J Biomed Mater Res A. 2005;74(4):629–639.
  8. Huang HH. Corrosion resistance of stressed NiTi and stainless steel orthodontic wires in acid artificial saliva. J Biomed Mater Res A. 2003;66(4):829–839.
  9. Benyahia H, Ebntouhami M, Forsal I, Zaoui F, Aalloula E. Corrosion resistance of NiTi in fluoride and acid environments. Int Orthod. 2009;7(4):322–334.
  10. Holla AK, Kumar S, Mogra S, Shetty SV, Urala A, Prasad MB. Evaluation of the breakdown potential of orthodontic archwire in acidic soft drinks. J Ind Orthod Soc. 2012;46(4):238–244.
  11. Huang HH, Chiu TH, Lee TH, et al. Ion release from NiTi orthodontic wires in artificial saliva with various acidities. Biomaterials. 2003;24(20):3585–3592.
  12. Mikulewicz M, Wołowiec P, Loster BW, Chojnacka K. Do soft drinks affect metal ions release from orthodontic appliances? J Trace Elem Med Biol. 2015;31:74–77.
  13. Wołowiec P, Chojnacka K, Loster BW, Mikulewicz M. Do dietary habits influence trace elements release from fixed orthodontic appliances? Biol Trace Elem Res. 2017;180(2):214–222.
  14. Kuhta M, Pavlin D, Slaj M, Varga S, Lapter-Varga M, Slaj M. Type of archwire and level of acidity: Effects on the release of metal ions from orthodontic appliances. Angle Orthod. 2009;79(1):102–110.
  15. Jaber LCL, Rodrigues JA, Amaral FLB, França FMG, Basting RT, Turssi CP. Degradation of orthodontic wires under simulated cariogenic and erosive conditions. Braz Oral Res. 2014;28(1):1–6.
  16. Parenti SI, Guicciardi S, Melandri C, et al. Effect of soft drinks on the physical and chemical features of nickel-titanium-based orthodontic wires. Acta Odontol Scand. 2012;70(1):49–55.
  17. Harris EF, Newman SM, Nicholson JA. Nitinol arch wire in a simulated oral environment: Changes in mechanical properties. Am J Orthod Dentofacial Orthop. 1988;93(6):508–513.
  18. Fernandes AB, Riberio AA, Araujo MV, Ruellas AC. Influence of exogenous pigmentation on the optical properties of orthodontic elastic ligatures. J Appl Oral Sci. 2012;20(4):462–466.
  19. Faltermeier A, Rosentrit M, Reicheneder C, Behr M. Discolouration of orthodontic adhesives caused by food dyes and ultraviolet light. Eur J Orthod. 2008;30(1):89–93.
  20. Rossouw PE. Friction: An overview. Semin Orthod. 2003;9(4):218–222.
  21. Burrow SJ. Friction and resistance to sliding in orthodontics: A critical review. Am J Orthod Dentofacial Orthop. 2009;135(4):442–447.
  22. Kusy RP, Whitley JQ. Friction between different wire-bracket configurations and materials. Semin Orthod. 1997;3(3):166–177.
  23. Kusy RP, Whitley JQ. Influence of archwire and bracket dimensions on sliding mechanics: Derivations and determinations of the critical contact angles for binding. Eur J Orthod. 1999;21(2):199–208.
  24. Kapila S, Angolkar PV, Duncanson MG Jr, Nanda RS. Evaluation of friction between edgewise stainless steel brackets and orthdontic wires of four alloys. Am J Orthod Dentofacial Orthop. 1990;98(2):117–126.
  25. Angolkar PV, Kapila S, Duncanson MG Jr, Nanda RS. Evaluation of friction between ceramic brackets and orthodontic wires of four alloys. Am J Orthod Dentofacial Orthop. 1990;98(6):499–506.
  26. Klimek J, Hellwig E, Ahrens G. Fluoride taken up by plaque, by the underlying enamel and by clean enamel from three fluoride compounds in vitro. Caries Res. 1982;16(2):156–161.
  27. 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;27(5):513–520.
  28. Yokoyama K, Kaneko K, Moriyama K, Asaoka K, Sakai J, Nagumo M. Hydrogen embrittlement of Ni-Ti supereleastic alloy in fluoride solution. J Biomed Mater Res A. 2003;65(2):182–187.
  29. Kwon YH, Cheon YD, Seol HJ, Lee JH, Kim HI. Changes on NiTi orthodontic wires due to acidic fluoride solution. Dent Mater J. 2004;23(4):557–565.
  30. Husmann P, Bourauel C, Wessinger M, Jäger A. The frictional behavior of coated guiding archwire. J Orofac Orthop. 2002;63(3):199–211.
  31. Bourauel C, Fries T, Drescher D, Plietsch R. Surface roughness of orthodontic wires via atomic force microscopy, laser specular reflectance and profilometry. Eur J Orhtod. 1998;20(1):79–92.
  32. 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;21(10):938–945.
  33. Articolo LC, Kusy RP. Influence of angulation on the resistance to sliding in fixed appliances. Am J Orthod Dentofacial Orthop. 1999;115(1):39–51.