When
considering the age factor, since
most of the baby teeth in the back of a child's mouth will remain until
they reach the age of 10-13, it is important to restore a decayed tooth
with materials that are durable, provide good service, and not be prone to
develop into additional dental problems. A cavity in a nine-year-old
might be treated with a filling, while the same cavity in a three-year-old
is best handled with a crown. The choice also depends on the
likelihood of future decay in the treated tooth. Placing a crown may
be the best way to avoid re-treatment in the future.
Size
of the child's cavity is an additional factor. When a cavity becomes
so large that there is not enough of the tooth left to hold the filling in
place, a crown is the best option.