CODS Journal of Dentistry

Register      Login

VOLUME 8 , ISSUE 2 ( 2016 ) > List of Articles

ORIGINAL ARTICLE

Evaluation of Force Decay of Elastomeric Ligatures in Simulated Oral Environment

Gajendra Bhansali, Mala R Manohar

Keywords : Decay, Elastomeric ligatures, Force

Citation Information : Bhansali G, Manohar MR. Evaluation of Force Decay of Elastomeric Ligatures in Simulated Oral Environment. CODS J Dent 2016; 8 (2):74-77.

DOI: 10.5005/jp-journals-10063-0017

License: CC BY-NC-ND 3.0

Published Online: 01-12-2016

Copyright Statement:  Copyright © 2016; Jaypee Brothers Medical Publishers (P) Ltd.


Abstract

Aim: The aim is to assess the amount of force decay of the elastomeric ligatures at a constant distance at different time intervals in a simulated oral environment. Materials and methods: The elastomeric ligatures were obtained from 3M Unitek. Totally, 100 elastomeric ligatures obtained were stretched to twice their outer diameter to study the force degradation pattern under static conditions over a period of 6 weeks in a simulated oral environment. The values obtained were statistically analyzed using repeated measures analysis of variance (ANOVA). Materials and methods: The elastomeric ligatures were obtained from 3M Unitek. Totally, 100 elastomeric ligatures obtained were stretched to twice their outer diameter to study the force degradation pattern under static conditions over a period of 6 weeks in a simulated oral environment. The values obtained were statistically analyzed using repeated measures analysis of variance (ANOVA). Conclusion: Elastomeric ligatures exert clinically significant force levels over a period of 4 weeks necessary for tooth movement. A monthly activation schedule is recommended.


PDF Share
  1. Proffit, WR. Contemporary orthodontics. 5th ed. St. Louis: Mosby; 2013.
  2. Josell SD, Leiss JL, Rekow ED. Force degradation in elastomeric chains. Semin Orthod 1997 Sep;3(3):189-197.
  3. Eliades T, Eliades G, Watts DC, Brantley WA. Elastomeric ligatures and chains. In: Brantley WA, Eliades T, editors. Orthodontic materials: scientific and clinical aspects. Stuttgart: Thieme; 2001. pp. 174-189.
  4. Andreasen GF, Bishara S. Comparison of alastik chains with elastics involved with intra-arch molar forces. Angle Orthod 1970 Jul;40(3):151-158.
  5. Bishara SE, Andreasen GF. A comparison of time-related forces between plastic alastiks and latex elastics. Angle Orthod 1970 Jul;40(4):319-328.
  6. Hershey HG, Reynolds WG. The plastic module as an orthodontic tooth-moving mechanism. Am J Orthod 1975 May;67(5):554-562.
  7. Wong AK. Orthodontic elastic materials. Angle Orthod 1976 Apr;46(2):196-205.
  8. Ash JL, Nikolai RJ. Relaxation of orthodontic elastomeric chains and modules in vitro and in vivo. J Dent Res 1978 May-Jun;57(5-6):685-690.
  9. Baty DL, Storie DJ, von Fraunhofer JA. Synthetic elastomeric chains: a literature review. Am J Orthod Dentofacial Orthop 1994 Jun;105(6):536-542.
  10. McLaughlin, RP.; Bennett, JC.; Trevisi, HJ. Systemized Orthodontic treatment mechanics. 2nd ed. London: Mosby; 2005.
  11. Bennett JC, McLaughlin RP. Controlled space closure with a preadjusted appliance system. J Clin Orthod 1990 Apr;24(4):251-260.
  12. Ren Y, Maltha JC, Kuijpers-Jagtman AM. Optimum force magnitude for orthodontic tooth movement: a systematic literature review. Angle Orthod 2003 Feb;73(1):86-92.
  13. Huget EF, Patrick KS, Nunez LJ. Observations on the elastic behavior of a synthetic orthodontic elastomer. J Dent Res 1990 Feb;69(2):496-501.
  14. Ferriter J, Meyers C, Lorton L. The effect of hydrogen ion concentration on the force degradation rate of orthodontic polyurethane chain elastics. Am J Orthod Dentofacial Orthop 1990 Nov;98(5):404-410.
  15. Taloumis LJ, Smith TM, Hondrum SO, Lorton L. Force decay and deformation of orthodontic elastomeric ligatures. Am J Orthod Dentofacial Orthop 1997 Jan;111(1):1-11.
  16. Singh V, Giliyar SB, Kumar S, Bhat M. Comparative evaluation of gingival depigmentation by diode laser and cryosurgery using tetrafluoroethane (TFE): 18 months follow up. Clin Adv Periodontics 2012 Aug;2(3):129-134.
  17. Nakamura Y, Hossain M, Hirayama K, Matsumoto K. A clinical study on the removal of gingival melanin pigmentation with the CO2 laser. Lasers Surg Med 1999 Aug;25(2): 140-147.
  18. Tal H, Oegiesser D, Tal M. Gingival depigmentation by Erbium: YAG laser: clinical observations and patient responses. J Periodontol 2003 Nov;74(11):1660-1667.
  19. Kumara Ajeya EG, Avinash JL, Rajiv NP, Galgali Sushama R. Split mouth gingival depigmentation using blade and diode laser–a case report. Ann Dent Res 2011 Oct;1(1):91-95.
  20. Perlmutter S, Tal H. Repigmentation of the gingiva following surgical injury. J Periodontol 1986 Jan;57(1):48-50.
  21. Atsawasuwan P, Greethong K, Nimmanon V. Treatment of gingival hyperpigmentation for esthetic purposes by Nd: YAG laser: report of 4 cases. J Periodontol 2000 Feb;71(2): 315-321.
  22. Rosa A, Aranha AC, Eduardo CP, Akira A. Esthetic treatment of gingival melanin hyperpigmentation with Er:YAG laser: short term clinical observation and patient follow-up. J Periodontol 2007 Oct;78(10):2018-2025.
  23. Esen E, Haytac MC, Oz IA, Erdogan O, Karsli ED. Gingival melanin pigmentation and its treatment with CO2 laser. Oral Surg Oral Med Oral Pathol Oral Radiol Endod 2004 Nov;98(5):552-527.
  24. Moritz A, Schoop U. Lasers in Endodontics. Oral Laser Application. Berlin: Quintessence, 2006.
  25. Dominic CMU, Ezeabasili ACC, Okoro BU. Industrial noise exposure and its effect on blood pressure in adult industry workers. GJEDT 2014;3(3):29-33.
  26. Mortuaire G, Boute O, Hatron PY, Chevalier D. Pilot study of submucosal radiofrequency for epistaxis in hereditary hemorrhagic telangiectasia. Rhinology 2013 Dec;51(4):355-360.
  27. Kumar PS, Matthews CR, Joshi V, de Jager M, Aspiras M. Tobacco smoking affects bacterial acquisition and colonization in oral biofilms. Infect Immun 2011 Nov;79(11): 4730-4738.
  28. Namiot Z, Namiot DB, Kemona A, Gołebiewska M, Bucki R. The effect of cigarette smoking and alcohol consumption on efficacy of Helicobacter pylori eradication. Pol Arch Med Wewn 2000 Sep;104(3):569-574.
  29. Linder JA, Sim I. Antibiotic treatment of acute bronchitis in smokers: a systematic review. J Gen Intern Med 2002 Mar;17(3):230-234.
  30. Lee WK, Ramanathan M Jr, Spannhake EW, Lane AP. The cigarette smoke component acrolein inhibits expression of the innate immune components IL-8 and human betadefensin 2 by sinonasal epithelial cells. Am J Rhinol 2007 Nov-Dec;21(6):658-663.
  31. Kamath PM, Shenoy VS, Mittal N, Sharma NK. Microbiological analysis of paranasal sinuses in chronic sinusitis—a south Indian coastal study. Egypt J Ear Nose Throat All Sci 2013 Nov;14(3):185-189.
  32. Bezerra TF, Pádna FG, Ogawa AI, Gebrim EM, Saldiva PH, Voegels RL. Biofilms in chronic rhinosinusitis with nasal polyps: pilot study. Braz J Otorhinolaryngol 2009 Nov- Dec;75(6):788-793.
  33. Hashemi M, Sadeghi MMM, Omrani MR, Torabi MA. Microbiology and antimicrobial resistance in chronic resistant rhino sinusitis with or without polyp after functional endoscopic sinus surgery. J Res Med Sci 2005;10(3):167-171.
  34. Farahani F, Youse Mashouf R, Hashemian F, Esmaeili R. Antimicrobial resistance patterns of aerobic organisms in patients with chronic rhinosinusitis in Hamadan, Iran. Avicenna J Clin Microb Infec 2014 Aug;1(2):e18961..
PDF Share

© Jaypee Brothers Medical Publishers (P) LTD.