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: 00-00-0000

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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