A novel maxillary transverse deficiency diagnostic method based on ideal teeth position

BMC Oral Health

Table 3 The measurement results of skeletal Class I and mild skeletal Class III (unit: mm)

Variables	Skeletal Class I	Mild skeletal Class III	P-value
Variables	Mean ± SD	Mean ± SD	P-value
Maxilla (x) measurement
W_xF6	49.55 ± 1.20	49.70 ± 2.24	0.795
W_xCR6	48.81 ± 2.27	48.01 ± 2.42	0.187
W_x4	39.94 ± 1.64	39.84 ± 1.54	0.795
Mandible (d) measurement
W_dF6	46.44 ± 2.32	47.72 ± 1.97	0.025*
W_dCR6	47.60 ± 2.17	49.33 ± 1.97	0.002**
W_d4	38.41 ± 2.16	38.75 ± 1.44	0.480
Difference (x measurement – d measurement)
D_F6	3.11 ± 1.73	1.97 ± 2.15	0.028*
D_CR6	1.21 ± 2.10	− 1.32 ± 2.50	0.000***
D₄	1.54 ± 1.61	1.12 ± 1.34	0.285

W_xF6/W_dF6, Width of first intermolar central fossa. W_xCR6 / W_dCR6, Width of first intermolar center resistance. W_x4 / W_d4, Width of maxillary first interpremolar central fossa or mandibular first interpremolar distal contact point. D_F6, Difference between W_xF6 and W_dF6. D_CR6, Difference between W_xCR6 and W_dCR6. D₄, Difference between W_x4 and W_d4
P-values were calculated using independent t-test
*P < 0.05; **P < 0.01; ***P < 0.001

ISSN: 1472-6831