Studying the Optical 3D Accuracy of Intraoral Scans: An In Vitro Study

Table 1

Measurements in three axes (X, Y, XY, and Z) of various lengths.

X-axis	Y-axis	XY-axis	Z-axis
X1: Mesiodistal width on teeth #21 (2 mm)	Y1: 2 mm buccolingual width on teeth #27 (2 mm)	AR: Diagonal distance from #12 to #27 (65 mm)	Z1: Buccal notch on #17 (2 mm)
X2: Distance from #11 to #21 (10 mm)	Y2: Buccolingual width on teeth #26 (10 mm)		Z2: Buccal notch on #27 (4 mm)
X3: Distance from #12 to #22 (30 mm)			Z3: Buccal notch on #16 (6 mm)
X4: Distance from #13 to #31 (40 mm)	Y3: Buccolingual width from #25 to #27 (20 mm)	AR: Diagonal distance from #22 to #17 (65 mm)	Z4: Buccal notch on #27 (8 mm)
X5: Distance from #14 to #41 (50 mm)
X6: Distance from #16 to #61 (60 mm)	Y4: Buccolingual width from #23 to #27 (30 mm)