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Year : 2008  |  Volume : 6  |  Issue : 11  |  Page : 53-58

Effect of four fruit juices on pH of dental plaque - A four period cross-over study

1 Department of Community Dentistry,College of Dental Sciences, Davangere, Kamataka-577 004, India
2 Department of Pedodontics and Preventive Dentistry, College of Dental Sciences, Davangere, Kamataka-577 004, India

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Source of Support: None, Conflict of Interest: None

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Background: The concept of health has prevailed for centuries and the dietary habits are changing with modernization. "Healthy eating" is perceived to be important and fruit juices are marketed and promoted aggressively as a ''Health drink''. Objecdves: (i) To estimate the endogenous pH and titratable acidity of four fruit juices. [Freshly prepared- Apple and Sweet lime, Ready to drink- Frooti and Pulpy orange] (ii) To assess the effect of these test drinks on plaque pH in two groups. [DMFf=O and DMFf>3]. (iii) To compare between the juices for two groups. Methodology: 24 volunteers aged 20-30 years from College of Dental Sciences, Davangere were included and divided into 2 groups based on caries experience. The groups were randomly allocated for fruit juices and a four period cross-over study was designed. Endogenous pH of the fruit juices and plaque samples collected at baseline and after consumption of fruit juice at 1,5,10,15 and 30 minutes was assessed by digital pH meter. Statistical analysis was done by using student t-test, ANOVA and Tukey's post hoc. Result: Four fruit juices were acidic and reduced plaque pH. Maximum pH drop was for ready to drink compared to fresh fruit juices in both the groups but in group B it dropped below critical pH. Conclusion: Ready to drink has more cariogenic potential compared to fresh fruit juices especially for caries active group.

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