Table 1.

Statistics of patient and smartphone characteristics in our oral disease dataset.

Statistic	Normal	Aphthous ulcer	Low-risk OPMD	High-risk OPMD	Oral cancer
Number of images	760	251	231	141	65
Number of patients	232	218	165	107	65
Image per patient (mean)	3.28	1.15	1.40	1.32	1.00
Smartphone type:
iPhone 11	87	21	0	5	27
iPhone 12	114	27	16	4	12
IQOO U1	212	58	63	45	15
360 N7Pro	347	145	152	87	11