Teflon tape is available at any local hardware or plumbing store. Attach the wall hanger to the wall of your shower about 15 inches away from the adaptor to prevent twisting of the tubing. Choose the wall hanger's location carefully as you won't be able to reposition it once it is attached. Reattach your showerhead by hand tightening it onto the adaptor. Turn on your shower and adjust the temperature to a comfortable level.
Warmer water offers better stimulation and increases the massaging effect.
Turn the valve stem wheel on the adaptor until a water stream comes out of the tip. You can also adjust the pressure of the stream with the valve stem wheel. Place the tip in your mouth next to teeth and gums and begin a slow toothbrush motion with the tip. Be sure to cover all areas between your teeth, along the gumline and any areas in your mouth needing attention. Expel the water as your mouth fills.