Cephalometric measurements performed on CBCT and reconstructed lateral cephalograms: a cross-sectional study providing a quantitative approach of differences and bias

Table 4 Descriptive statistics (mean, SD, SEM), lower and upper limits of 95% CIs and paired t test between measurements performed on CBCT and on reconstructed lateral cephalograms

Descriptive statistics, confidence intervals and paired t tests
Measurement	3D CBCT			CI		2D RLC			CI		p-value [–]
Measurement	Mean	SD	SEM^a	Lower	Upper	Mean	SD	SEM^a	Lower	Upper
PNS-A [mm]	44.0	3.38	0.32	43.33	44.57	43.9	3.38	0.32	43.32	44.56	0.976
S-N [mm]	64.8	3.94	0.37	64.07	65.51	64.8	3.94	0.37	64.06	65.50	0.986
N-Me [mm]	105.7	8.90	0.83	104.10	107.37	105.7	8.89	0.83	104.08	107.35	0.986
N-ANS [mm]	48.0	4.14	0.39	47.24	48.76	48.0	4.14	0.39	47.23	48.75	0.980
ANS-Me [mm]	58.8	5.76	0.54	57.78	59.90	58.8	5.76	0.54	57.76	59.87	0.977
Go-Me[mm]	77.2	5.54	0.52	76.20	78.23	64.9	5.48	0.51	63.91	65.92	< 0.001
Go-S [mm]	78.9	7.61	0.71	77.52	80.32	67.0	7.71	0.72	65.55	68.38	< 0.001
Go-Cd [mm]	50.1	9.04	0.85	48.43	51.75	49.4	6.51	0.61	48.16	50.54	0.744
SNA [deg]	80.5	3.29	0.31	79.89	81.10	80.5	3.29	0.31	79.89	81.10	1.000
SNB [deg]	78.2	3.11	0.29	77.60	78.74	78.2	3.12	0.29	77.59	78.74	0.988
ANB [deg]	2.5	1.07	0.10	2.33	2.72	2.4	1.09	0.10	2.20	2.60	0.371
BaŜN [deg]	129.9	5.58	0.52	128.83	130.87	129.9	5.58	0.52	128.85	130.90	0.977
S-N^PNS-ANS [deg]	8.3	3.13	0.29	7.72	8.87	8.2	3.19	0.30	7.59	8.77	0.787
PNS-ANS^Go-Me [deg]	41.5	3.07	0.29	40.94	42.07	26.9	4.49	0.42	26.04	27.69	< 0.001
S-N^Go-Me [deg]	46.5	3.68	0.34	45.86	47.21	35.0	4.81	0.45	34.14	35.90	< 0.001

ISSN: 1472-6831