Script using inotifywait

Shell Programming and Scripting
1

Is there a way to get my script to only trigger when a .ppt is created?

#!/bin/bash
while inotifywait -e create /ticker/powerpointshare; 
do 
   sleep 30; 
   sudo chmod -R 777 /ticker/powerpointshare/*.*; 
   sleep 15; 
   sudo reboot; 
done

I'm not sure if this is even possible but would piping the

while inotifywait -e create /ticker/powerpointshare;

into a grep for *.ppt and if its a .ppt then continue ifnot end.