Group one received 30% hydrogen peroxide activated by microplasma for thirty minutes in a pulp chamber, while group two received 30% hydrogen peroxide alone for thirty minutes in the pulp chamber and the temperature was maintained at thirty seven degrees Celsius for both groups. After the tests had been performed, they found that microplasma treatment with 30% hydrogen peroxide had a significant effect on the whiteness of the teeth in group one. Lee and his associates concluded that the application of microplasma along with hydrogen peroxide is an efficient method in the bleaching of stained teeth due to its ability to remove proteins on the surface of teeth and the increased production of hydroxide.