Progress in Orthodontics

Table 3 Comparison of the arch width between estimated and actual tooth models in deep learning method (unit: mm)

From: Accuracy of deep learning-based integrated tooth models by merging intraoral scans and CBCT scans for 3D evaluation of root position during orthodontic treatment

	Estimated tooth model				Actual tooth model				P value*
	Mean	SD	Max	Min	Mean	SD	Max	Min	P value*
Maxilla
Inter-incisor width U1	7.2	1.0	8.7	6.3	7.1	0.9	8.4	6.2	0.882
Inter-incisor width U2	17.6	1.8	20.1	15.7	18.1	2.2	20.3	15.3	0.488
Inter-canine width	32.5	2.3	36.0	30.1	32.1	2.5	35.8	29.3	0.366
Inter-premolar width	39.0	2.9	41.9	34.6	39.0	3.3	42.3	34.7	0.904
Inter-molar width	50.4	2.6	52.1	46.1	50.2	3.1	52.9	45.5	0.663
Mandible
Inter-incisor width L1	4.2	1.3	6.2	2.9	4.3	1.0	5.8	3.3	0.883
Inter-incisor width L2	12.3	0.6	13.0	11.5	12.6	0.8	13.6	11.6	0.324
Inter-canine width	22.4	2.6	26.4	19.5	23.2	2.1	26.5	21.2	0.199
Inter-premolar width	31.1	1.7	33.6	29.6	31.9	1.8	34.8	30.1	0.115
Inter-molar width	38.9	2.5	42.5	36.3	39.9	2.0	41.6	37.3	0.316

SD, Standard deviation
*The results of paired t test. U1, maxillary central incisors; U2, maxillary lateral incisors; L1, mandibular central incisors; L2, mandibular lateral incisors

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