Answer:
Hii! There also can be 5 stages and those stages are:
<em>- testing</em>
<em>- questioning</em>
<em>- building</em>
<em>- feedback </em>
<em>- summarizing</em>
Location of emergency
Extent of emergency
And
Type of building
Exfoliation is the process of a tooth becoming loose and falling out from the primary dentition, I'm pretty sure.
Hope this helps^^^