Question

Dental caries or tooth decay (a) ..
softening (b)......... enamel and dentine. It begins
(c) .......... bacteria acting on sugars produce acida
that softens or demineralises (d) .......... enamel.
Masses of bacterial cells together (e) ............ food
particles stick to the teeth to form dental plaque.
Brushing the teeth (1) ................ eating removes
the plaque before the bacteria produce acids.
(g)............. untreated microorganisms (h)..
invade the pulp, causing inflammation and
infection​

Answer 1

Answer:

a.for

b.the

c.a

d.the

e.food

1.after

g.so

h.it