Abstract
Dental caries is the most common chronic disease affecting humans worldwide. Early diagnosis of dental caries lesions allows more conservative treatment options to be followed. This may positively affect the prognosis of the condition and longevity of dental restorations. The optimum diagnosis approach should be used for better management of caries lesions. This chapter discusses several caries diagnostic modalities and systems, such as visual-tactile examination, dental radiography, transillumination-based devices, electronic caries monitors, fluorescence-based devices, and others. Furthermore, different diagnostic approaches for detecting caries lesions around different dental restorations are reviewed at the end of this chapter. Proper selection and manipulation of diagnostic tools help to enhance the outcome of dental examination. Examination should be done in clean and dry teeth for proper examination.