BIOLASE Waterlase Express Dental Laser BIOLASE System is sleek and small, with the smallest footprint ever for an All-Tissue Laser. For multiple operatories, it works well as a countertop unit. Optional carts and a durable travel case are available. Moving the Waterlase Express all-tissue laser from operatory to operatory or even office to office can become a reality with optional carts and travel accessories.