One MDS lecturer and two professors of prosthodontics came to the conclusion that UltraSuction is beneficial in resisting dislodging forces after clinical trials. Are you in a position to doubt it? These denturism instant courses for plaster mixers don't teach you the meaning of " Clinical...
I wouldn't discount the system especially when claims are supported by clinical evidence.
THE EFFECT OF ULTRA-SUCTION SYSTEM ON THE RETENTION OF MANDIBULAR COMPLETE DENTURE
Badra H S et al
EDJ Volume (56),Number (1.1),Jan 2010
Happy reading folks