
White patch on the floor of the mouth of a smoker from The National Institute of Dental and Craniofacial Research Web site (www.nidcr.nih.gov)

White patch with nodules in mouth from The National Institute of Dental and Craniofacial Research Web site (www.nidcr.nih.gov)

White patch on lips from The National Institute of Dental and Craniofacial Research Web site (www.nidcr.nih.gov)

White patch on inside of mouth from The National Institute of Dental and Craniofacial Research Web site (www.nidcr.nih.gov)