Caries risk assessment: a comparison between the computer program 'Cariogram', dental hygienists and dentists

The 'Cariogram', which is an interactive PC-program for caries risk evaluation, illustrates the interaction between caries related factors and expresses the caries risk graphically. It also demonstrates a weighted impact of the different etiological factors on the risk. The aim of this paper was to use the Cariogram program on a set of patients, and to compare the outcome of its risk evaluation with those made by dental hygienists and dentists. A questionnaire, containing the descriptions of five patients with detailed information on nine factors generally associated with caries, was given to the participants. They were asked to rank the patients according to their 'chance to avoid dental caries' during the coming year. The results were compared with the assessments obtained from the Cariogram.

73.5% of the dental hygienists and 78.5% of the dentists ranked the patients for caries risk either identically or with only one deviation when compared to the Cariogram. It was concluded that the 'opinion' of the Cariogram on caries risk was in agreement with that of the majority of the participants. In addition, the Cariogram program induced discussions about the relative impact of etiological factors of caries. It is envisaged that the Cariogram can serve as one further tool in the teaching of caries risk.