Methods Based on X-Ray

These include:

• Digital radiography – which is increasingly replacing bitewing radiography and that is as accurate as film for the detection of caries lesions.

• Digital image enhancement – which studies show can provide superior results to radiographs when enhanced correctly but takes a significant amount of technical skill.

• Digital subtraction radiography – which is not typically used in a clinical setting, also because of the high level of technical skill needed to perform correctly.

• Tuned aperture computed tomography – which shows improved diagnostic accuracy in caries lesion detection, but with equipment that is too expensive for most clinical practices.