The Effect of Chewing Xylitol Gum on Salivary Flow Rate and pH in Fixed Appliance

Objective: To observe the change of salivary flow rate and pH after chewing xylitol gum in fixed appliance.Methods:Salivary flow rate and pH were measured before and after chewing gum in 40 patients with fixed appliance.Results:Salivary flow rate and pH were increased significantly after chewing xylitol gum,excpt of the increasing of pH There's no significant difference at 0～1minutes after chewing xylitol gum.Conclusion:Chewing xylitol gum would help for preventing and treating enamel demineralization with fixed appliance.