Fresh concrete is perishable and will lose quality if it sits in the truck too long. ASTM C 94, Standard Specification for Ready Mixed Concrete, says that concrete should be discharged within 90 minutes and before 300 revolutions of the mixer after water has been added to the cement.
You can prevent cavities. Minerals in our saliva, such as calcium and phosphate, along with the protective fluoride that we can get from fluoride toothpaste or a fluoride rinse or in some cases from fluoridated tap water, can repair minerals and protect them from acid damage.
Brushing and flossing your teeth and seeing the dentist regularly greatly reduces bad breath. The use of mouthwash after brushing also helps eradicate bacteria build up. It is also recommended that you use effective tongue cleaners since the tongue holds most of the bacteria in the mouth.