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VOLUME 9 , ISSUE 7 ( November, 2008 ) > List of Articles

RESEARCH ARTICLE

The Environmental Influence of Light Coke™, Phosphoric Acid, and Citric Acid on Elastomeric Chains

Leandro Teixeira, Betina do Rosário Pereira, Thais Gelatti Bortoly, João Armando Brancher, Odilon Guariza-Filho

Citation Information : Teixeira L, Pereira BD, Bortoly TG, Brancher JA, Guariza-Filho O. The Environmental Influence of Light Coke™, Phosphoric Acid, and Citric Acid on Elastomeric Chains. J Contemp Dent Pract 2008; 9 (7):17-24.

DOI: 10.5005/jcdp-9-7-17

License: CC BY-NC 3.0

Published Online: 01-11-2008

Copyright Statement:  Copyright © 2008; Jaypee Brothers Medical Publishers (P) Ltd.


Abstract

Aim

The purpose of this study was to evaluate the in vitro effect of Light Coke™, phosphoric acid, and citric acid on the force decline pattern of two types of elastomeric chains.

Methods and Materials

One hundred sixty gray colored elastomeric chain modules, 80 Chainette (GAC) and 80 Sunburst™ (GAC) chains, were divided into four groups for immersion into Light Coke, phosphoric acid, citric acid, and artificial saliva. The initial stretched force of the elastomeric chains ranged from 220gf to 250gf. During the experiment, all elastomeric chains were kept immersed in artificial saliva at 37°C (pH≈6.24) to simulate the oral environment. To simulate daily consumption of Light Coke, the elastomeric chains were immersed in the solutions twice a day for 15 minutes. The control group was kept immersed in artificial saliva continuously with no further treatment. Force (gf) was measured with a Dial-Type dynamometer (Dentaurum®), initially (baseline), 24 hours, 7, 14, and 21 days. Data were analyzed using the Tukey test at a 5% level of probability.

Results

A statistically significant reduction on the force produced by the elastomeric chains was seen at different time points. The greatest reduction in force occurred in the first 24 hours (p=0.01).

Conclusion

Force decay of the Chainette elastomeric chains were lower than the Sunburst™ chain (p<0.05). The immersion treatments caused no statistically significant difference in force for either chain module (p>0.05).

Clinical Significance

Good elastomeric chain properties are necessary for effective tooth movement, and knowledge of force-decay rates is an important factor in achieving the best orthodontic outcome.

Citation

Teixeira L, Pereira BP, Bortoly TG, Brancher JA, Tanaka OM, Guariza-Filho O. The Environmental Influence of Light Coke™, Phosphoric Acid, and Citric Acid on Elastomeric Chains. J Contemp Dent Pract 2008 November; (9)7:017-024.


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  1. Force degradation of orthodontic elastomeric chains – A product comparison study. Am J Orthod Dentofac Orthop 1985; 87:377-84.
  2. Contemporary orthodontics. St Louis, Mosby. 432, 1986.
  3. Force decay of elastomeric chain – a serial study.: Part II. Am J Orthod Dentofacial Orthop 1993; 104:373-77.
  4. Effects of prestretching on force degradation of synthetic elastomeric chains. Am J Orthod Dentofacial Orthop 2005; 128:477-82.
  5. Force delivery properties of colored elastomeric modules. Am J Orthod Dentofacial Orthop 1994; 106:40-46.
  6. A comparison of time related forces between plastic elastics and latex elastics. Angle Orthod 1970; 40:319-28.
  7. The effect of environmental factors on elastomeric chain and nickel titanium coil springs. Eur J Orthod 1998; 20:169-76.
  8. Structural conformation of in vitro and in vivo aged orthodontic elastomeric modules. Eur J Orthod 1999; 21:649-58.
  9. An investigation into the ability of soft drinks to adhere to enamel. Caries Research 1995; 29:470-76.
  10. The effect of hydrogen ion concentration on the force-degradation rate of orthodontic polyurethane chain elastics. Am J Orthod Dentofacial Orthop 1990; 98:404-10.
  11. In vivo comparison of force decay between injection molded and die-cut stamped elastomers. Am J Orthod Dentofacial Orthop 2006; 129:384-89.
  12. Force in orthodontics and its relation to tooth movement. Austral J Dent 1952; 56:11-18.
  13. Force decay and deformation of orthodontic elastomeric ligatures. Am J Orthod 1997; 111:1-11.
  14. Strength decay of orthodontic elastomeric ligatures. Journal of Orthod 2002; 29:37-43.
  15. Influence of a soft drink with low pH on enamel surfaces: An in vitro study. Am J Orthod Dentofacial Orthop 2005; 128:372-77.
  16. Force application and decay characteristics of untreated and treated polyurethane elastomeric chains. Angle Orthod 1994; 64:455-67.
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