Abstract: A rotary tool assembly includes a main body, a motor disposed in the main body, and a power source coupled to the main body. The power source being configured to provide electrical power to the motor. A rotary tool attached to the main body. The rotary tool configured to be actuated by the motor. A first bit storage area disposed on the main body. The first bit storage area being configured to receive a first bit. A second bit storage area disposed on the main body. The second bit storage area being configured to receive a second bit.

Abstract: An aqueous oral preparation is provided having from about 0.5% to about 10% by weight of a peroxide compound such as hydrogen peroxide or urea peroxide and from about 0.01% to about 2% by weight of a compound providing fluoride or fluoride-containing ions in an aqueous composition. The compound may further include a thickening agent, such as carboxy polymethylene, a non-ionic surfactant, such as Pluronic brand poloxamer, buffering agents, stabilizers, glycerine, sweeteners, and deionized filterd water as a solvent. A variety of flavoring and/or coloring agents may also be added. A stable compatable and highly effective dental preparation is thereby provided.