“… 3 In adults, aphthous ulcer, lichen planus, herpes simplex labialis/stomatitis, oral candidiasis, fibroma, mucocele, leukoplakia, erythroplakia, oral cancer and more others are regularly found in clinical dental practice. 4 There are also various oral benign and malignant soft tissue diseases such as reactive, infectious, inflammatory, immune-related, and premalignant/malignant lesions. 1 This is especially true in Taiwan, due to different oral habits such as tobacco smoking, alcohol consumption, and betel quid chewing, 5 , 6 , 7 that increase the exposure of oral cavity to various chemical carcinogens and oral cancer initiation, promotion, and progression.…”