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ORIGINAL ARTICLE
Year : 2020  |  Volume : 7  |  Issue : 2  |  Page : 56-62

To evaluate the buffering capacity of various drinks commonly available in India


1 Department of Conservative Dentistry and Endodontics, MGM Dental College and Hospital, Navi Mumbai, Maharashtra, India
2 Department of Biochemistry, MGM Medical College, Navi Mumbai, Maharashtra, India

Correspondence Address:
Dr. Vanitha U Shenoy
Department of Conservative Dentistry and Endodontics, MGM Dental College and Hospital, Kamothe, Navi Mumbai 410209, Maharashtra.
India
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Source of Support: None, Conflict of Interest: None


DOI: 10.4103/mgmj.MGMJ_29_20

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Introduction: Consumption of carbonated and health drinks and fruit juices containing acid, as one of the ingredients, can lead to erosion of the tooth. Aim: The purpose of this study was to measure buffering capacity of commonly available drinks and their titratable acidity. Materials and Methods: Sixteen commonly available drinks were taken and divided into four groups (sports/energy drinks, carbonated drinks, fruit juices, and water). Each group comprised four drinks. Their initial pH was measured with pH meter and their titratable acidity was measured, both by adding 0.1M NaOH into 30 mL of each drink, in the increments of 1 mL, till the pH raised to 5.5 and 7.0, respectively. Statistical Analysis: The volume of NaOH required to raise the pH to 5.5 and 7.0 was recorded in each group. The data were subjected to analysis of variance (ANOVA) followed by Tukey’s post hoc test. Results: Study groups showed significantly lower initial pH compared to the control group. Intergroup comparisons within study groups showed no significant differences with respect to their initial pH. Titratable acidity of energy drinks was found to be maximum to reach the pH 5.5 and even for pH 7. Titratable acidity was the minimum with carbonated drinks to reach pH 5.5 and with fruit juices to reach pH 7.0. Conclusion: No significant differences were observed between the energy drinks–carbonated drinks, energy drink–fruit juices, and carbonated drink–fruit juices with respect to their initial pH. Energy drinks had the most erosive potential due to their significantly greater buffering capacity as compared to carbonated drinks and fruit juices.


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