Solubility of tooth mineral Flashcards
1
Q
what is the mineral component of teeth and bones called
A
hydroxyapatite
2
Q
an increase in H+ ions in the mouth causes what
A
increases the solubilisation of calcium phosphate
3
Q
an increase in calcium/ phosphate in the mouth causes what
A
inhibits solubilisation of calcium phosphate and promotes re-mineralisation
4
Q
what causes tooth erosion
A
direct effects of acids in the diet
5
Q
what causes dental caries
A
acids produced by plaque bacteria
6
Q
how does fluoride help reduce dental caries
A
it is incorporated into hydroxyapatite to form fluroapatite. FL ions are smaller than OH meaning they fit the crystal better making it more stable and less soluble in acid
