A Comparative Evaluation of Force Decay in Six Different Orthodontic Elastomeric Chains - An In-vitro Study

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Authors

  • Amit Bhardwaj
     Dean, Professor and Head, Department of Orthodontics and Dentofacial Orthopaedics, Modern Dental College and Research Centre, Gandhi Nagar, Airport Road, Indore – 453112, Madhya Pradesh ,IN
  • Kratika Mishra
     Assistant Professor, Department of Orthodontics and Dentofacial Orthopaedics, Modern Dental College and Research Centre, Gandhi Nagar, Airport Road, Indore – 453112, Madhya Pradesh ,IN

DOI:

https://doi.org/10.18311/jpfa/2020/25331

Keywords:

ANOVA, Elastomeric Chains, Force Degradation
Orthodontics and Dentofacial Orthopaedics

Abstract

Aims: Comparison of degradation of force of 6 commercially available orthodontic elastomeric chains (e-chains) for the period of 8 weeks. Settings and Design: In-vitro Study. Method and Materials: Elastomeric chains of 6 companies were stretched to a particular distance that is pre determined and comparison was made at two force magnitudes (200 gm and 350 gm) at different time points. Digital force gauge is used for measuring remaining force magnitudes at different time points. Statistical Analysis used: The comparison of difference in force decay between subgroups and effect of time on force decay was calculated using Analysis of Variance (ANOVA). Comparison of the mean force differences using paired t-test is performed from initial to final measurements. For comparison of difference of force decay of elastomeric chain products of same company, independent samples t-tests were used. Results: Maximum remained force (129.7 gm) was observed in American Orthodontics I (Ao I) subgroup followed by Ormco (Or) I (120.1 gm), Orthoorganizers (Oo) I (105.5 gm), 3m I (91.9 gm, G and H (Gh) I (80.4 gm) and Orthoclassic (Oc) I subgroup showed minimum remained force (74.9 gm) at end of 8 weeks in light force. Maximum remained force (209.0 gm) was observed in Ao II subgroup followed by Or II (191.3 gm), 3M II (188.8 gm), Oc II (129.9 gm), Oo II (121.5 gm) and Gh II subgroup showed minimum remained force (108.5 gm) at end of 8 weeks in heavy force. Conclusions: American Orthodontics showed minimum rate and Ortho Classic showed maximum rate of force decay over 8 weeks in both light force (200 gm) and heavy force (350 gm).

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Published

2020-10-30

How to Cite

Bhardwaj, A., & Mishra, K. (2020). A Comparative Evaluation of Force Decay in Six Different Orthodontic Elastomeric Chains - An In-vitro Study. Journal of Pierre Fauchard Academy (India Section), 34(3), 76–86. https://doi.org/10.18311/jpfa/2020/25331

Issue

Volume 34, Issue 3, September 2020

Section

Original Articles

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All the articles published in JPFA are distributed under a creative commons license. The journal allows the author(s) to hold the copyright of their work (all usages allowed except for commercial purpose).

 

References

Claudia Kochenborger, Dayanne Lopes da Silva, Ernani Menezes Marchioro, Diogo Antunes Vargas, Luciane Hahn. Assessment of force decay in orthodontic elastomeric chains: an in vitro study. Dental Press J Orthod 2011; 16(6): 93–9. https://doi.org/10.1590/S2176-94512011000600015

Giovana Rembowski Casaccia, Janaí­na C. Gomes, Daniela Sales Alviano, Antonio Carlos de Oliveira Ruellas, Eduardo Franzotti Sant Anna. Microbiological Evaluation of Elastomeric Chains. Angle Orthod 2007; 77(5): 890–3. https://doi.org/10.2319/091106-367

Andreasen, G.F., Bishara, S.E. Comparison of Alastik chains with elastics involved with intraarch molar to molar forces. The Angle Orthod. 1970; 40: 151–8.

Eliades, T., Eliades, G., Silikas, N., Watts, D.C. Tensile properties of orthodontic elastomeric chains. Eur J Orthod 2004; 6(2):157–62. https://doi.org/10.1093/ejo/26.2.157

AH. Mirhashemi, A. Saffarshahroudi, A. Sodagar, M. Atai. Force Degradation Pattern of Six Different Orthodontic Elastomeric Chains. J Dent (Tehran) 2012; 9(4): 204–15.

Nora Buchmann, Christiane Senn, Judith Ball, Lorenz Brauchli. Influence of initial strain on the force decay of currently available elastic chains over time. Angle Orthod 2012; 82(3):529–35. https://doi.org/10.2319/062011-399.1

Sean Beattie, Peter Monaghan. An in vitro study simulating effects of daily diet and patient elastic band change compliance on orthodontic latex elastics. Angle Orthod. Apr 2004; 74(2): 234–9.

David A. Balhoff, Matthew Shuldberg, Joseph L. Hagan, Richard W. Ballard, Paul C. Armbruster. Force decay of elastomeric chains-a mechanical design and product comparison study. J Orthod. 2011; 38(1): 40–7. https://doi.org/10.1179/14653121141227

Tz Chau Lu, Wei Nan Wang, Tien Hsiang Tarng, Jane Wen Chenm: Force decay of elastomeric chain-a serial study. Part II. Am J Orthod. 1993; 104(4): 373–7. https://doi.org/10.1016/S0889-5406(05)81336-8

Kyung-Ho Kim, Chun-Hsi Chung, Kwnagchul Choy, Jeong-Sub Lee, Robert L. Vanarsdall. Effects of prestretching on force degradation of synthetic elastomeric chains. Am J Orthod. 2005; 128: 477–82. https://doi.org/10.1016/j.ajodo.2004.04.027

William A. Brantley, Samuel Salander, C. Louts Myers, Robert V. Winders. Effects of Prestretching on Force Degradation Characteristics of Plastic Modules. Angle Orthod 1979; 49(1): 37–43.

Christiana Gioka, Spiros Zinelis, Theodore Eliades, George Eliades. Orthodontic Latex Elastics-A Force Relaxation Study. Angle Orthod 2006; 76: 475–79.

David C. De Genova, Pamela Mclnnes-Ledoux, Roger Weinberg, Robert Shaye. Force degradation of orthodontic elastomeric chains-A product comparison study. Am J Orthod. 1985; 87(5): 377–84. https://doi.org/10.1016/00029416(85)90197-6

Hershey HG, Reynolds WG. The plastic module as an orthodontic tooth-moving mechanism. Am J Orthod. 1975; 67(5): 554–62. https://doi.org/10.1016/00029416(75)90300-0

Ash, Nikolai. Relaxation of orthodontic elastomeric chains and modules in vitro and in vivo. J Dent Res. 1978; 57(5–6): 685–90. https://doi.org/10.1177/00220345780570050301

Charles H. Boester, Lysle E. Johnston. A Clinical Investigation of the Concepts of Differential and Optimal Force in Canine Retraction. Angle Orthod 1974; 44: 113–9.

Storey, E.E., Smith, R. Force in orthodontics and its relation to tooth movements. Aust Orthod J. 1952; 56: 11–18.

Reitan, K. Some factors determining the evaluation of forces in orthodontics. Am J Orthod Dentofacial Orthop. 1957; 43(1): 32–4. https://doi.org/10.1016/0002-9416(57)90114-8