(a)[2]
Name the type of tooth marked X and describe one role of this kind of tooth.
(b(i))[1]
State the lowest pH recorded for saliva in the mouth after eating food sweetened with honey.
(b(ii))[2]
Saliva takes longer to return to pH 7.0 after eating food sweetened with sugar than after eating food sweetened with honey. State how much extra time is needed for the pH to return to pH 7.0.
(c(i))[2]
Use information from the graph to explain whether sweetening food with honey or with sugar is more likely to lead to dental decay.
(c(ii))[2]
State two ways to stop dental decay.
(c(iii))[4]
Suggest and explain the health problems that may occur when small blood clots travel to the coronary arteries.