Oranges, limes, strawberries, kiwis, and peppers can be very beneficial to your oral health. There are many different types of bacteria in your child’s mouth and yours too. Some of these bacteria can cause gingivitis, which is the first stage of gum disease while other bacteria can cause tooth decay. Vitamin C in fruits such as Oranges, limes, strawberries, kiwis cantaloupe, and papaya can help to kill the bacteria that cause gum disease and they can promote a healthy supply of collagen in the gums.   Dr. Todd Snyder, DDS (Dentist in Laguna Niguel, CA) says that kids and adults should rinse their mouths with water immediately following eating citric foods or acidic fluids and refrain from brushing for 30 minutes.  However, citric acid in fruit as well as other acids in various drinks and liquids can temporarily weaken enamel and leave it vulnerable to erosion caused by tooth brushing. Rinsing with water can minimize acid attacks on teeth. Other good vegetable sources of vitamin C are: red, yellow & orange peppers; tomatoes; & sweet potatoes.