The influence of habitual consumption of chewing gums in the outcome of masticatory performance tests using two-coloured chewing gums
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Springer Nature
Fecha
2019-04-25Referencia bibliográfica
Vaccaro, G., Peláez, J. I., & Gil-Montoya, J. A. (2019). The influence of habitual consumption of chewing gums in the outcome of masticatory performance tests using two-coloured chewing gums. Scientific reports, 9(1), 1-9.
Resumen
The aim of this study is to assess the influence of regular consumption of chewing-gums on the
Masticatory Performance (MP); and to determine if increasing the consumption improves the MP of
non-regular consumers. We recorded the chewing-gums consumption rate (CGC) and measured the
MP of 265 participants (μ = 47.09, σ = 22.49 years) using the Variance of the Histogram of the Hue
(VhH) image processing method. Then, participants were instructed to increase the consumption, and
the MP was measured again (SESSION) two and four days after. Normality of MP was verified with
Kolmogorov-Smirnov and Shapiro-Wilk tests. The association between the age and the consumption
rate was measured with GEE and the eta-squared statistic. Finally, a 3 × 3 mixed ANOVA with SESSION
as the within-subject factor and CGC as the between-subjects factor was run. Session-wise and groupwise
comparison were performed with post hoc Bonferroni. No systematic error was detected for VhH
(p = 1.00). Kolmogorov-Smirnov and Shapiro-Wilk tests confirmed the normality of the distribution of
MP (p > 0.05). There was a significant effect of SESSION on MP, F(1.746, 457.328) = 59.075, p < 0.001;
furthermore, there were significant differences in MP between SESSIONs. Additionally, there was a
significant effect of CGC on MP, with F (2, 356.53) = 564.73, p < 0.001. In conclusion, the chewing-gum
consumption habits influence the two-coloured chewing gum mixing test. The apparent MP of nonregular
consumers can be improved by prescribing a controlled increase in the consumption of chewinggums
for a few days.