Abstract: An apparatus for removing a dental appliance can include a body having a perimeter and a pry lip extending from the perimeter of the body. The pry lip includes a terminal ridge surface and an inclined surface disposed between the terminal ridge surface and the perimeter of the body. The apparatus for removing a dental appliance can be incorporated in a dental system which includes a dental appliance and the apparatus for removing a dental appliance. The apparatus for removing a dental appliance can be configured such that it fits within an area defined by an outer edge of the dental appliance. Thus, the dental appliance and the apparatus for removing the dental appliance can be stored within a dental appliance container with an internal cavity that closely conforms to the shape and size of the dental appliance.

Abstract: An air and water hose apparatus for use in an air supply system for firefighters. The air and water hose apparatus has an air hose completely within the water hose. The air and water hose apparatus comprises only a single length of the overall water hose of the system. This ensures that no part of the air hose is exposed to possible damage. The system supplies high pressure air to the firefighters. The system allows for easy connect and disconnect of the air and water hose apparatus to the firefighter's mask and preferably can be used with standard self-contained breathing apparatus having a mask and a regulator. A branched conduit allows several firefighters to be attached to a single air and water hose apparatus.