DiagnoScan is an intelligent optical device designed for the prognosis of dental caries. It utilizes the Transillumination method to detect tooth decay by emitting a strong radius of light that illuminates the tooth from the inside. By analyzing the way decay conducts light, DiagnoScan can identify dark areas indicating the presence of tooth decay. A data analysis report will be sent to the dentist. According to the dentist's analysis, as the first signs of tooth decay appear, the user is called to start or continue the treatment.