Wow! There are lots of school students now have different types of oral cavity and teeth problems. Come on to play the role of school dentist to help these students to relieve the disease torment and pain.Get rid of those teeth stain on the surface of the teeth. Clean their mouth cavity and use some drugs to make their oral cavity be anti-inflammation. Kill those dirty bacteria and virus one by one by using our prepared medical tools. Extract their bad teeth carefully and fix with good teeth for