1, dry needling is acupuncture which involves insert a needle into the skin 

2, trigger point is acupuncture points which it has been used by acupuncturist for thousands of years 

3, dry needling use acupuncture needles which is acupuncture 

4, acupuncturists require 3 to 4 years professional training to practice acupuncture 

5, most of all,  acupuncture is not in PT'S practice scope. 

Welcome PT to acupuncture school, learn how to practice acupuncture, become to acupuncturist!