Abstract
T o evaluate the effect o f m ultip le ex aminers on caries prevalence measure m ents, tw o exam iners participated in a clinical den ta l caries test study, in w hich children fro m two similar schools used either a control dentifrice or a stannous fluoride dentifrice. O ne exam iner con sistently diagnosed greater increm ents of new caries fo r control and test subjects, even though he looked at about ha lf the num ber o f subjects as exam ined by the other dentist. N o conclusion could be draw n tha t one set of results was more accurate than the other. A n analysis of variance show ed a significant difference betw een exam iners, a significant d iffer ence betw een dentifrices, and no signifi cant interactions.
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