Question

Why some say that ph of human saliva is 6.5-7 while the ph is 7.5

Answer 1

HEY THERE ,
THE PH IS MEASURED BEFORE THE MEAL TAKEN AND THEN AFTER THE MEAL SO BEFORE THE MEAL THE PH IS 7.5
AFTER THE MEAL IT IS 6.5
HOPE IT HELPS

Answer 2

Explanation:

◾The pH level of 14 is the most alkaline that is basic in nature,

◾The pH level of 0 is the most acidic,

◾Its mid-point(0-14) that is pH level of 7 , that is the pH level for pure water is normal

◾ A good pH reading for saliva is between in the range of 7 to 7.5.

◾The pH in this range is considered as normal and good for teeth and mouth.

◾The Optimal range of pH for saliva is above 7.2 to 8.4.

◾While after eating, the pH of saliva increases to 7.8 or higher.

◾The pH of saliva is altered by the presence of bacteria, food residue left in the mouth etc.

◾Plaque formation on the surface of teeth are other oral bacteria's attacks food particles and elevate its the pH value.