World Journal of Dentistry

Register      Login

VOLUME 2 , ISSUE 4 ( October-December, 2011 ) > List of Articles

RESEARCH ARTICLE

A Comparison of Frictional Resistance between Active and Passive Self-ligating Brackets with Conventional Bracket Systems

BM Shivalinga, H Jyothikiran, Sachin Bansal, Azeem Farhan

Citation Information : Shivalinga B, Jyothikiran H, Bansal S, Farhan A. A Comparison of Frictional Resistance between Active and Passive Self-ligating Brackets with Conventional Bracket Systems. World J Dent 2011; 2 (4):302-308.

DOI: 10.5005/jp-journals-10015-1102

Published Online: 01-12-2012

Copyright Statement:  Copyright © 2011; The Author(s).


Abstract

Aim

The present study compared the frictional resistance of active (time- 2, In-Ovation R) and passive (Damon SL-2, Smart clip) self-ligating brackets with conventional titanium, fiberglass and ceramic brackets under dry and wet conditions with artificial saliva using universal testing machine.

Methods

Modified Tidy's jig was constructed to simulate clinical situation. A total of 200 samples were tested. Specimens were divided into two categories which were run under dry and wet conditions, using artificial saliva. Around 10 samples of each active and passive selfligating brackets were dry run and 10 others were used in wet conditions. Around 10 samples of each ceramic, titanium and fiberglass brackets were run using elastomeric ties in both dry and wet conditions and 10 each of them using stainless steel ligatures under dry and wet conditions.

Results

The study revealed that the least frictional resistance was demonstrated by the brackets in the following order, i.e. passive selfligating brackets, active self-ligating brackets, titanium, fiberglass and ceramic brackets in both dry and wet conditions.

Conclusion

The self-ligating brackets seem to be promising in quenching the thirst of orthodontist to have a bracket that is functionally efficient with reduced friction, esthetically pleasing, reduced treatment and chairside time, combined with better oral hygiene maintenance and patient comfort because of absence of ligation.


PDF Share
  1. A comparison of frictional forces during simulated canine retraction of a continuous edgewise archwire. Am J Orthod Dentofac Orthop 1986;90:199-203.
  2. Comparison of frictional resistance in titanium and stainless steel brackets. Am J Orthod Dentofac Orthop 1999;116:271-74.
  3. Comparison of load transmission and bracket deformation between titanium and stainless steel brackets. Am J Orthod Dentofac Orthop 1999;116:275-78.
  4. Frictional resistance of ceramic and stainless steel orthodontic brackets. Am J Orthod Dentofac Orthop 1990;98:398-403.
  5. The dynamic frictional resistance between orthodontic brackets and archwires. Am J Orthod Dentofac Orthop 1994;106:131-38.
  6. Frictional properties of metal and ceramic brackets. J Clin Orthod 1992;26:425-32.
  7. A comparative study of frictional force between orthodontic brackets and archwires. Am J Orthod Dentofac Orthop 1991;100:513-22.
  8. Frictional resistance in stainless steel bracket-wire combinations with effect of vertical deflections. Am J Orthod Dentofac Orthop 1996;109:535-42.
  9. A study of frictional forces between orthodontic brackets and archwires. Br J Orthod 1994;21: 349-57.
  10. Relative kinetic frictional forces between sintered stainless steel brackets and orthodontic wires. Am J Orthod Dentofac Orthop 1995;107:20-27.
  11. Evaluation of friction between ceramic brackets and orthodontic wires of four alloys. Am J Orthod Dentofac Orthop 1990;98:499-506.
  12. Frictional forces between bracket and archwires. Am J Orthod Dentofac Orthop 1989;96:397-404.
  13. A comparative study of frictional resistance between orthodontic bracket and archwire. Am J Orthod Dentofac Orthop 1980;78:593-609.
  14. Frictional forces of ligated plastic and metal edgewise brackets. J Dent Res 1989;58:A-21 Abstracts.
  15. The rationale. Evolution and clinical application of the self-ligating bracket. Clin Orthod Res 1998;1:52-61.
  16. The Damon low friction bracket. A biologically compatible straight system. J Clin Orthod 1998;22:670-79.
  17. Introducing the Damon system-2 Clin Impressions 1999;8:2-9,31.
  18. Comparison of the frictional coefficient for selected archwire bracket slot combinations in dry and wet states. Angle Orthod 1991;61:293-301.
  19. A comparative in vitro study of the frictional characteristics of two types of self-ligating brackets and two types of preadjusted edgewise brackets tied with elastomeric ligatures. Eur J Orthod 1998;20:589-96.
  20. Comparative study of orthodontic wires under dry and wet conditions. Am J Orthod Dentofac Orthop 1986;89:485-91.
PDF Share
PDF Share

© Jaypee Brothers Medical Publishers (P) LTD.