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

Progress in Orthodontics

Table 1 Average surface difference of estimated and actual tooth model in each deep learning and manual method and its comparison between the two methods (unit: mm)

Average surface difference	Deep learning method	Manual method	P value*
Average surface difference	Mean ± SD	Mean ± SD
Maxilla	0.07 ± 0.06	0.02 ± 0.02	0.863
Mandible	0.08 ± 0.04	0.03 ± 0.02	0.775

Data show the average surface discrepancy (mm) between the estimated and actual model in each deep learning and manual method by means of shell/shell deviation in the program. SD, Standard deviation.
*The results of paired t test