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. 2018 Jun 19;18:109. doi: 10.1186/s12903-018-0566-7

Fig. 6.

Fig. 6

Scatterplot and regression line comparing the occlusal contact area of intraoral scanner to the occlusal contact area of prescale. a In Molars group, the regression analysis shows that the two variables express linear correlation and has a linear equation with a slope of 0.917. R2 is 0.930. b Scatterplot of occlusal contact area by intraoral scanner and by prescale in Premolars Group. c Scatterplot of occlusal contact area by intraoral scanner and by prescale in Anteriors Group. Groups of Premolars and Anteriors have a week linear relationship and greater dispersion