If you need both hands and feet free to play your instrument, you can use a tongue switch to turn your pages. It is unique in that it requires no movement of the teeth or jaw to operate, can't slip accidentally from the mouth, does not require interruption of breathing like a blow switch, and can be bitten extremely hard without damage or impairment of functioning.
The Tongue Switch is comprised of a 1/2 inch pressure-sensitive switch mechanism, a 1 inch flattened and bite-resistant stem, a 36 inch coaxial wire, and a 3.5mm plug. It is configured so that the pressure-sensitive switch face is always oriented towards the user's tongue, regardless of the direction of insertion into the mouth, thus allowing the wire to be routed to the left or right.
The tongue movement required is most similar to that of pressing bubble gum against the back surface of the front teeth before blowing a bubble. The user will feel a "click" each time the switch is depressed, indicating that a page is being turned. The entire switch assembly is waterproof, and since it is situated entirely within the mouth, no jaw or teeth movement is required to retain or actuate the switch while turning pages.
For sanitary reasons this item is not returnable unless it is found to be defective.