This study will evaluate saliva and dental plaque pH after consuming 10% sucrose solution and then each child will test each of the two types of gum (aqueous propolis 5% and placebo gum) so that the child himself is the control and tested sample together, according to the following order:~In the first visit: the pH of saliva and dental plaque will be measured (before giving the sucrose solution, while chewing one of the two types of gum, and after giving the sucrose solution).~In the second visit: after a week, the pH of saliva and dental plaque will be measured (before giving the sucrose solution, while chewing the other types of gum, and after giving the sucrose solution).)
This study aims to investigate the changes in saliva and dental plaque pH after consuming sugar-free chewing gum containing 5% of aqueous propolis in children aged between 8-11 years. The studied sample will be divided into two groups: Group A (Control group) placebo chewing gum, and Group B (Experimental group) aqueous propolis chewing gum. All children will experience both types of chewing gum with an interval of 1 week between the two studied groups.