Evaluation of Growth and Development of Late Mixed Dentition Upper Dental Arch with Normal Occlusion Using 3-Dimensional Digital Models

Table 3

Means and standard deviations of buccolingual and mesiodistal inclinations of the upper first molar at different ages.

Measurement (°)	10 years (n = 44)		11 years (n = 44)		12 years (n = 44)
	Mean	SD	Mean	SD	Mean	SD
UR6BL	50.528	6.982	49.168	7.000	47.161	7.098
UL6BL	51.789	6.434	47.944	5.970	46.665	7.241
UR6MD	64.403	6.370	64.299	6.509	64.573	6.589	NS
UL6MD	66.317	4.508	67.077	4.909	65.369	5.660	NS

n, number; SD, standard deviation; NS, not significant; , , .