Electrical conductance for the detection of early tooth decay

Dentists often aim to identify tooth decay that has already advanced to a level that needs a filling. If dentists were able to find tooth decay when it has only affected the outer layer of the tooth (enamel) then it is possible to stop the decay from spreading any further and prevent the need for fillings. It is also important to avoid a false‐positive result, when treatment may be provided when caries is absent. This is one of a series of reviews on diagnostic tests for dental caries, we also have reviews on imaging modalities, transillumination, fluorescence devices and tests to detect root caries.

The aim of this Cochrane Review was to find out how accurate electrical conductance devices (non‐invasive devices that send an electrical current to the surface of the tooth) are for detecting and diagnosing early tooth decay as part of the dental ‘check‐up’ for children and adults who visit their general dentist. Researchers in Cochrane included seven studies published between 1997 and 2018 to answer this question.

Continue reading