Nowadays, the epidemiological profile of dental caries has led the scientific community to developing new diagnostic technologies and methods. The proposal of more sensitive diagnostic criteria, capable of detecting all spectra of dental caries, has occupied an outstanding place in scientific debates (Mendes et al. 2010; Iranzo-Cortés et al. 2013).
Since the early 1900s (with Black’s Classification System), many dental caries diagnostic thresholds, criteria and classification systems have been successfully developed (Fisher and Glick 2012). Currently, the central question is to register the presence and activity of incipient carious lesions, expanding the scope of the World Health Organization (WHO) diagnostic criteria and the Decayed, Missing, Filled (DMF) index (Silva et al. 2012; Iranzo-Cortés et al. 2013; WHO 2013).
However, reflections and discussions among oral health professionals and researchers about the conscientious choice among different dental caries diagnostic criteria within different contexts must be encouraged. This is the aim of this communication.