DOI:

10.37988/1811-153X_2024_3_114

Mechanical properties of aesthetic nickel-titanium wires before and after clinical use

Downloads

Authors

  • A.S. Patil 1, PhD, professor of the Department of Orthodontics
  • M. Gera 1, postgraduate in the Department of Orthodontics
  • S. Sharma 1, postgraduate in the Department of Orthodontics
  • P.D. Hemgude 1, BDS, reader of the Department of Orthodontics
  • A. Sabane 1, MDS, associate professor of the Department of Orthodontics
  • 1 Bharati Vidyapeeth Dental College and Hospital, 411043, Pune, India

Abstract

The objective of the study was to compare the mechanical properties of aesthetic orthodontic Ni-Ti wires before and after clinical use.
Materials and methods.
The experimental group consisted of 75 0.014" coated Ni-Ti wires — 15 from each of the 5 companies selected, namely Group I — D-tec, Group II — JJ Orthodontics, Group III — OSL, Group IV — American Orthodontics, and Group V — Koden. The control group consisted of two groups with 25 coated 0.014" Ni-Ti, 5 from each company (without clinical use) and 25 non-coated 0.014" Ni-Ti 5 from each company (without clinical use). The experimental wires were retrieved from the patient’s mouth after one month and tested in the laboratory, for their mechanical properties which included: load deflection, flexural modulus, and microhardness.
Results.
Mean micro-hardness of experimental samples is significantly lower in Group III (303.9±8.9; p=0.001). The mean micro-hardness of coated control samples is significantly lower in Group I (309.8±18.2; p=0.674). In Groups I, II, IV and V, the mean micro-hardness of experimental, coated and non-coated control samples was not statistically significant.
Conclusion.
On comparison of mechanical properties like load deflection, flexural modulus, and hardness of aesthetic orthodontic Ni-Ti wires, it was observed that there was a significant difference among five different types of Ni-Ti wire. Also, difference was observed among the experimental group, the coated control group and the non-coated control group. A significant difference was seen in Ni-Ti wire before and after clinical use.

Key words:

aesthetic wires, mechanical properties, Ni-Ti wires

For Citation

[1]
Patil A.S., Gera M., Sharma S., Hemgude P.D., Sabane A. Mechanical properties of aesthetic nickel-titanium wires before and after clinical use. Clinical Dentistry (Russia).  2024; 27 (3): 114—117. DOI: 10.37988/1811-153X_2024_3_114

References

  1. Washington B., Evans C.A., Viana G., Bedran-Russo A., Megremis S. Contemporary esthetic nickel-titanium wires: do they deliver the same forces? Angle Orthod. 2015; 85 (1): 95—101. PMID: 24901067
  2. Elayyan F., Silikas N., Bearn D. Mechanical properties of coated superelastic archwires in conventional and self-ligating orthodontic brackets. Am J Orthod Dentofacial Orthop. 2010; 137 (2): 213—7. PMID: 20152677
  3. Ramadan A.A. Removing hepatitis C virus from polytetrafluoroethylene-coated orthodontic archwires and other dental instruments. East Mediterr Health J. 2003; 9 (3): 274—8. PMID: 15751919
  4. Kapila S., Sachdeva R. Mechanical properties and clinical applications of orthodontic wires. Am J Orthod Dentofacial Orthop. 1989; 96 (2): 100—9. PMID: 2667330
  5. Mane P., Ganiger C.R., Pawar R., Phaphe S., Ronad Y.A., Valekar S., Kanitkar A.A. Effect of fluoride on mechanical properties of NiTi and CuNiTi orthodontic archwires: an in vitro study. Dental Press J Orthod. 2021; 26 (2): e212020. PMID: 33950083
  6. Kato M., Namura Y., Yoneyama T., Shimizu N. Effect of the vertical position of the canine on the frictional/orthodontic force ratio of Ni-Ti archwires during the levelling phase of orthodontic treatment. J Oral Sci. 2018; 60 (3): 336-343. PMID: 29848889
  7. Iijima M., Muguruma T., Brantley W., Choe H.C., Nakagaki S., Alapati S.B., Mizoguchi I. Effect of coating on properties of esthetic orthodontic nickel-titanium wires. Angle Orthod. 2012; 82 (2): 319—25. PMID: 21827235
  8. Bradley T.G., Berzins D.W., Valeri N., Pruszynski J., Eliades T., Katsaros C. An investigation into the mechanical and aesthetic properties of new generation coated nickel-titanium wires in the as-received state and after clinical use. Eur J Orthod. 2014; 36 (3): 290—6. PMID: 23873791
  9. da Silva D.L., Mattos C.T., de Araújo M.V., de Oliveira Ruellas A.C. Color stability and fluorescence of different orthodontic esthetic archwires. Angle Orthod. 2013; 83 (1): 127—32. PMID: 22591261
  10. Muguruma T., Iijima M., Yuasa T., Kawaguchi K., Mizoguchi I. Characterization of the coatings covering esthetic orthodontic archwires and their influence on the bending and frictional properties. Angle Orthod. 2017; 87 (4): 610—617. PMID: 27731649
  11. Pinzan-Vercelino C.R.M., de Araújo Gurgel J., Bramante F.S., Pessoa T.F., Albertin S.A., Fialho M.P.N., Pinzan A. Coated nickel titanium archwires and their uncoated counterparts: In-vitro contemporary comparison of unloading forces. Int Orthod. 2020; 18 (2): 374—379. PMID: 32037208
  12. Zhou A., Makowka S., Warunek S., Chen M.Y., Al-Jewair T. Effects of various coating methods on the mechanical, physical, and aesthetic properties of GUMMETAL® archwires: In vitro study. Int Orthod. 2023; 21 (2): 100753. PMID: 37060684
  13. Nakano H., Satoh K., Norris R., Jin T., Kamegai T., Ishikawa F., Katsura H. Mechanical properties of several nickel-titanium alloy wires in three-point bending tests. Am J Orthod Dentofacial Orthop. 1999; 115 (4): 390—5. PMID: 10194282
  14. Elayyan F., Silikas N., Bearn D. Ex vivo surface and mechanical properties of coated orthodontic archwires. Eur J Orthod. 2008; 30 (6): 661—7. PMID: 19011166

Downloads

Received

May 3, 2024

Accepted

July 21, 2024

Published on

October 2, 2024