White Patch in the Mouth

Sam is a 57-year-old male presenting with 57 y/o m with a persistent white patch on the inside of the cheek, history of chewing tobacco. 57-year-old man presenting after his dentist identified a persistent painless white plaque on the right buccal mucosa, here to discuss what it is and what to do about it. Your task is to take a focused history from this patient.