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In order to use the ICDAS criteria in epidemiological surveys the following conditions are essential to enable examiners to assess each of the caries codes accurately: overhead operating light; cleaned teeth and compressed air. The ICDAS codes can be used to examine cleaned teeth in other conditions but the data recorded this way is unlikely to be comparable with other ICDAS examinations. Variation from the ideal conditions detailed above will compromise the sensitivity of the examination, e.g. without compressed air many code 1 lesions cannot be detected and should be omitted from the code list. It is suggested that if compressed air is unavailable the following codes should be used: [insert new ICDAS epi codes which use letters rather than numbers to highlight that the codes are not comparable with full ICDAS]. |

