International Journal of Experimental Dental Science

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VOLUME 4 , ISSUE 1 ( January-June, 2015 ) > List of Articles

RESEARCH ARTICLE

Degradation of the Strength of Elastomeric Chains subjected to Different Levels of Salivary pH associated with Exposure to Mouthrinses with and without Fluoride

Matheus Melo Pithon, Camilla Andrade, Amir Felipe Santos

Citation Information : Pithon MM, Andrade C, Santos AF. Degradation of the Strength of Elastomeric Chains subjected to Different Levels of Salivary pH associated with Exposure to Mouthrinses with and without Fluoride. Int J Experiment Dent Sci 2015; 4 (1):23-28.

DOI: 10.5005/jp-journals-10029-1090

Published Online: 01-06-2015

Copyright Statement:  Copyright © 2015; Jaypee Brothers Medical Publishers (P) Ltd.


Abstract

Aim

To evaluate the degradation of strength of elastomeric chains submitted to different levels of salivary pH and exposed to mouthrinses with and without fluoride.

Materials and methods

Seven groups of chain elastics (n = 18) mounted on test devices that remained immersed in artificial saliva were tested. Group 1 (pH 5 and without fluoride), 2 (pH 5 and with fluoride), 3 (pH 6 and without fluoride), 4 (pH 6 and with fluoride), 5 (pH 7.5 and without fluoride) and 6 (pH 7.5 and with fluoride) and 7 (control group). The test groups were exposed to mouthrinses twice a day for 30 seconds, with an interval of 12 hours between one exposure and the other. A control group was immersed in distilled water. The strength of samples was gauged with a dynamometer. Six measurements of strength were made in the following time intervals: initial (0), 1, 7, 14, 21 and 28 days. The force values were submitted to the analysis of variance (ANOVA) and Tukey's test to determine whether there were statistical differences between each group. The level of significance adopted was 5% (α = 0.05).

Results

When the groups were evaluated individually, comparing the factor time in the initial period, the force was statistically higher than that in all the other experimental time intervals (p < 0.05). From the 7th day up to day 28, no statistical differences were found among the groups (p > 0.05). The factors pH and the presence of mouthwash with or without fluoride did not interfere in the results among the groups (p < 0.05).

Conclusion

The presence or absence of fluoride in the mouthrinses used in the study made no difference to the force degradation of the chain elastics, as the test groups obtained similar results among them in the studied time intervals.

How to cite this article

Pithon MM, Andrade C, Santos AF, Campos M, Saini R. Degradation of the Strength of Elastomeric Chains subjected to Different Levels of Salivary pH associated with Exposure to Mouthrinses with and without Fluoride. Int J Experiment Dent Sci 2015;4(1):23-28.


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  1. Optimum force magnitude for orthodontic tooth movement: a systematic literature review. Angle Orthod 2003;73(2):86-92.
  2. The use of elastics in orthodontics: a need to ‘stretch’ the topic! Int J Orthod Milwaukee 2012;23(3):55-58.
  3. Orthodontic elastic materials. Angle Orthod 1976;46(5):196-205.
  4. In vitro degradation of polyurethane orthodontic elastomeric modules. J Oral Rehabil 2005;32(2):72-77.
  5. Viscoelastic properties of elastomeric chains: an investigation of pigment and manufacturing effects. Am J Orthod Dentofacial Orthop 2012;141(2):315-326.
  6. The influence of simulated aging on the mechanical properties of orthodontic elastomeric chains without an intermodular link. J Orofac Orthop 2012;73(3): 289-297.
  7. Force decay of elastomeric chains—a mechanical design and product comparison study. J Orthod 2011;38(2):40-47.
  8. Calibration of force extension and force degradation characteristics of orthodontic latex elastics. Am J Orthod Dentofac Orthop 2000;118(1):280-287.
  9. Evaluation of force degradation characteristics of orthodontic latex elastics in vitro and in vivo. Angle Orthod 2007;77(3):688-693.
  10. Fluorides, orthodontics and demineralization: a systematic review. J Orthod 2005;32(2):102-114.
  11. Salivary Streptococcus mutans levels in patients before, during, and after orthodontic treatment. Am J Orthod Dentofacial Orthop 1991;100(3):35-37.
  12. Quantification of white spot lesions around orthodontic brackets with image analysis. Angle Orthod 2008;78(5):585-590.
  13. In vivo effects of fluoridated antiplaque dentifrice and bonding material on enamel demineralization adjacent to orthodontic appliances. Am J Orthod Dentofac Orthop 2006;130(1):357-363.
  14. Demineralization and remineralization around orthodontic appliances: an in vivo study. Am J Orthod Dentofac Orthop 1987;92(2):33-40.
  15. Force delivery properties of colored elastomeric modules. Am J Orthod Dentofac Orthop 1994;106(1):40-46.
  16. Force application and decay characteristics of untreated and treated polyurethane elastomeric chains. Angle Orthod 1994;64(1):455-464.
  17. Does chlorhexidine in different formulations interfere with the force of orthodontic elastics? Angle Orthod 2013;83(2): 313-318.
  18. The effects of varying alcohol concentrations commonly found in mouth rinses on the force decay of elastomeric chain. Angle Orthod 2012;82(2):894-899.
  19. A comparison of time related forces between plastic alastiks and latex elastics. Angle Orthod 1970;40(1):319-328.
  20. Comparison of alastik chains of elastics involved with intra-arch molar-to-molar forces. Am J Orthod 1971;60(5):200-201.
  21. Force decay of elastomeric chain—a serial study. Part II. Am J Orthod Dentofac Orthop 1993;104(2):373-377.
  22. Force degradation of orthodontic elastomeric chains—a product comparison study. Am J Orthod 1985;87(4):377-384.
  23. Observations on the elastic behavior of a synthetic orthodontic elastomer. J Dent Res 1990;69(2):496-501.
  24. , Lorton L. The effect of hydrogen ion concentration on the force-degradation rate of orthodontic polyurethane chain elastics. Am J Orthod Dentofac Orthop 1990;98(2):404-410.
  25. The effect of environmental factors on elastomeric chain and nickel titanium coil springs. Eur J Orthod 1998;20(3):169-176.
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