ABSTRACT Dental caries is caused by a complex interplay of factors, with pH of the saliva playing a crucial role in initiating the carious process in the presence of cariogenic bacteria. It is the second most common infection in the world next only to common cold. So its prevention becomes very important and we have to devise newer effective strategies for the same. This article enlightens a proof of concept and working model of an indigenously developed wireless pH monitoring device which will be converted into a miniaturized version in future. The micro pH meter facilitates long-term tooth surface pH monitoring and providing real-time feedback to the patients and dental experts. The pH meter sends signals to an external monitoring equipment via Bluetooth facility and warns the subject about the pH status of his saliva. After the reception of the warning, the subjects should use routine brushing and flossing or use a medicated chewing gum or rinse with a mouthwash. Extrapolating to the clinical environment, this novel dental device can control a global disease called caries, which causes a lot of financial burden and time-consuming restorative dental treatment to patients worldwide. Clinical significance Real-time devices that monitor the pH changes in the oral environment and alert the patient prompting them to adopt preventive measures will help in executing oral care services on a day-to-day basis, thereby averting the need for comprehensive oral procedures. How to cite this article Mahendran K, Sundar S, Shekar S, Kumarasamy B, Raj A. Bluetooth for White Tooth. J Oper Dent Endod 2017;2(2):61-64.