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ORIGINAL ARTICLE
Year : 2020  |  Volume : 7  |  Issue : 2  |  Page : 50-55

Effects of stevia and xylitol chewing gums on salivary flow rate, pH, and taste acceptance


Department of Pedodontics and Preventive Dentistry, D.Y. Patil School of Dentistry, Navi Mumbai, Maharashtra, India

Correspondence Address:
Jasmin Winnier
D.Y. Patil School of Dentistry, Nerul, Navi Mumbai - 400 070, Maharashtra
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/jdrr.jdrr_20_20

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Context: Stevia is a natural sweetener which is used as a sugar substitute. There is limited research regarding the use of stevia chewing gum and its effect on salivary flow rate and pH. Aim: The aim of the study was to assess the effect of stevia and xylitol chewing gums on salivary flow rate, pH, and its taste acceptance. Setting and Design: A randomized, triple-blinded, clinical study with a crossover design was conducted. Subjects and Methods: Twenty children aged 8–13 years with decayed, missing, and filled teeth index score ≥3 were selected. Pretest unstimulated saliva was collected. The children were divided into two groups, and Stevia and Xylitol gums were provided to each group to chew for 15 min. Salivary samples were collected at 15 min and 1 h. Salivary flow rate and pH were measured at baseline, 15 min, and 1 h. Statistical Analysis: The collected data were subjected to statistical analysis using Wilcoxon signed-rank test, and P ≤ 0.05 was considered statistically significant. Results: There was an increase in the salivary flow rate from baseline to 15 min in children provided with stevia and Xylitol chewing gums with P = 0.003 and 0.001, respectively, in the trial. In the crossover trial, there was an increase in salivary flow rate from baseline to 15 min in children provided with stevia and Xylitol chewing gums with P = 0.020 and 0.001, respectively. There was a reduction in salivary pH from baseline to 15 min in children provided with Xylitol (P = 0.001) and 15 min to 1 h in stevia (P = 0.003) in the trial. In the crossover trial, there was a reduction in pH from baseline to 15 min (P = 0.020) and 15 min to 1 h (P = 0.003) in children provided with stevia and Xylitol chewing gums (P = 0.001). Conclusion: Stevia is equally effective to Xylitol chewing gum in increasing salivary flow rate and salivary pH. Stevia due to its bitter aftertaste is less accepted in children as compared to Xylitol.


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