Acupuncture and Dry Needling are two totally different approaches. Acupuncture is dealing with different meridian/energy points to balance the body and help bring energy to or away from the biological systems of the body. There are 12 main meridians in the body. If there are any disruptions in energy flow, it can alter the entire system.
Dry Needling is done by most physical therapists and is focused more on loosening bound or tight muscle tissue. Proper Dry Needling requires the therapist to place a needle in the muscle tissue that is tight and then move the needle up and down to loosen this tight tissue.