Fig 1.
Clinical presentation of homogeneous leukoplakia.
(A) and non-homogeneous leukoplakia (B) in the buccal mucosa.
Fig 2.
ORA-LEU-CAN study flow chart.
Table 1.
Patients’ characteristics.
Fig 3.
Clinical appearances of three patients and the definition of a recurrence of leukoplakia.
Patient 1: A, B, C; 2: A, B, C; 3: A, B, C. A clinical healthy mucosa had to be recorded with a clinical photograph between the time of surgery and the time of recurrence.
Table 2.
Patients treated with surgical removal of leukoplakia.
Fig 4.
Kaplan-Meier curves for disease-free survival of patients with OL.
Time shown is years from excision to recurrence. (A) Clinical diagnosis: P = 0.021; (B) Size: P = 0.445; (C) Dysplasia: P = 0.166; (D) Number of lesions: P = 0.587; (E) Smokers: P = 0.216; (F) Snuff users: P = 0.003.
Table 3.
Cox regression analysis of risk factors for the recurrence of OL.