Caries Mean Standard Error Standard Deviation Minimum Maximum 95% Confidence Interval of the Difference Lower Upper Non abutment 0.2 0.056 0.44 0 2 0.08 0.31 Abutment 1.1 0.195 1.524 0 6 0.71 1.49

Table 6: Paired sample of caries in abutments and non-abutments teeth at recall visit.