Abstract: An oral care system and method for the treatment of certain oral pathological conditions that require the cleaning and cleansing of the underlying scaffolding of the tooth. The oral care system and method generally includes applying chlorine dioxide liquid or gel to a diseased portion of the tooth and activating it so as to clean the aforementioned. A tool is utilized to activate the chlorine dioxide liquid thereby releasing its cleaning action. Another process utilizes repetitive steps of water and chlorine dioxide activated with a tool to cleanse the inner regions of an affected tooth.