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.
Using mouthwash every morning, you are likely to get good results after a few weeks. Dentists recommend the use of mouthwash at least once a day because it kills bacteria, prevents tooth decay, gingivitis, mouth infections, and refreshes your breath.Mouthwash can be used before or after brushing your teeth. However, avoid eating or brushing for at least half an hour after using mouthwash.f you have a dry mouth, the alcohol content in the mouthwash must be kept to a minimum by diluting it or swishing for a very short time. You can use mouthwash for 10 to 15 seconds for a satisfactory effect.