Attention: open in a new window. PDFPrint The Dental Hygienist Training experts at Power2BDental offer Dental Hygienist Courses as well as the Leading Dental Conference Online About Power2B G. H. Port Dental Laboratories was the largest dental laboratory in the Southern Hemisphere. For over 50 years, with George Port at the helm, serviced Australian and New Zealand dentist with superior technology, superior products and enthusiasm for the continued growth of the Dental Profession.