tooth decay

Tooth decay !!
Tooth decay !!
Oh my god !
Oh my god !

Enamel (hydroxyapatite)
= Ca
10
(PO
4
)
6
(OH)
2
(insoluble ionic compound)

Ca
10
(PO
4
)
6
(OH)
2
10Ca
2+
(aq) + 6PO
4
3-

(aq) + 2OH
-
(aq)
Demineralization
Remineralization
Cause
tooth decay
d
e
f
e
n
s
e
a
g
a
i
n
s
t

t
o
o
t
h

d
e

c
a
y