The Decayed, Missing, or Filled Tooth Surfaces (DMFS) Index is used by a dentist or dental hygienist to determine the prevalence of coronal caries in permanent and primary teeth through an examination that records the three components. Note from PhenX Oral Health Working Group (WG): The National Health and Nutrition Examination Survey (NHANES) uses a web-based system for data entry that will beep and a message will be displayed in the lower right portion of the screen if two entries are made or a nonallowable entry is made. Data entry is prohibited until an allowable response is entered. There are laptop programs that can be used with this protocol, and the Oral Health WG recommends such a system as it does notify the recorder of correctable errors. An example of a paper data recording form is included as part of this protocol so that the user can see the format of such a data entry system. It also is good to have paper forms on hand in case of an electrical failure or some other problem that prohibits use of the electronic data entry system.
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