Impact of a modified carbonated beverage on human dental plaque and salivary pH: an in vivo study.

BACKGROUND

To assess the plaque and salivary pH changes at different time intervals in vivo after consumption of a carbonated beverage modified with sodium fluoride and calcium phosphate.

MATERIALS AND METHODS

Twenty-four subjects aged 18-25 years were recruited and randomly assigned to three groups (group A, original drink Sprite; group B, Sprite with sodium fluoride; group C, Sprite with calcium phosphate). Collection of pooled plaque and unstimulated saliva was done before and after the drinks were consumed by the subjects at 5-, 10-, 20- and 30-minute intervals.

RESULTS

The pH rise was higher with group C for plaque and group B for saliva.

CONCLUSIONS

Modification of the test carbonated beverage with calcium phosphate and fluoride may exert some protective potential, especially in high caries risk candidates.