Implant-to-root dimensions projected by panoramic radiographs inthe maxillary canine-premolar region: implications for dental implant treatment

Table 2 Mean difference in implant-to-root dimensions by maxillary region as measured by PAN and CBCT (n = 418)

Maxillary region	n	PAN		CBCT		Difference
Maxillary region	n	M (mm)	SD (mm)	M (mm)	SD (mm)	M (mm)	SD (mm)	P
Cen Inc–Lat Inc
Cent Inc^I–Lat Inc^T	36	1.87	0.98	1.62	0.78	0.26	1.10	0.167
Lat Inc^I–Cent Inc^T	49	0.95	0.92	1.09	0.63	− 0.14	0.58	0.095
Total	85	1.34	1.04	1.31	0.74	0.25	0.85	0.759
Lat Inc–Canine
Lat Inc^I–Canine^T	57	2.18	1.51	2.20	0.89	− 0.02	1.46	0.915
Canine ^I–Lat Inc^T	39	1.81	1.00	1.71	0.70	0.10	0.65	0.330
Total	96	2.03	1.33	2.00	0.85	0.03	1.19	0.810
Canine–1. Prem
Canine ^I–1. Prem^T	41	0.30	1.12	1.54	1.00	− 1.24	1.47	0.000*
1. Prem ^I–Canine^T	120	0.87	1.10	1.93	1.01	− 1.06	0.91	0.000*
Total	161	0.73	1.13	1.83	1.02	− 1.11	1.08	0.000*
1. Prem–2. Prem
1. Prem^I–2. Prem^T	41	1.10	1.40	1.63	1.31	− 0.54	0.98	0.000*
2. Prem^T–1. Prem^I	35	0.74	0.99	2.06	1.10	− 1.32	0.95	0.000*
Total	76	0.93	1.23	1.81	1.04	− 0.63	1.24	0.000*
Total	418	1.19	1.28	1.74	0.99	− 0.56	1.16	0.000*

Cen central, Lat lateral, Inc incisor, Prem premolar, ^I implant, ^T tooth, CBCT cone-beam computed tomography, PAN panoramic radiography, n number of sites measured, M mean, SD standard deviation, mm millimeters, P probability of type I error
*Significant difference with paired t-test

ISSN: 1471-2342