Table 2.

Comparison of the two scanners separately in each model and in the right and left quadrants using the paired sample t-test.

Model	Region		Scanners	P value
1	A-B	Pair	3Shape and Sirona	0.692
	C-D	Pair	3Shape and Sirona	0.096
2	A-B	Pair	3Shape and Sirona	0.881
	C-D	Pair	3Shape and Sirona	0.001
3	A-B	Pair	3Shape and Sirona	≤0.01
	C-D	Pair	3Shape and Sirona	0.071