This weeks episode discusses white patches and their presentation in the oral cavity. We discussed hereditary sources we discussed the who definition of a leukoplakia and frictional chemical and other sources of white patches on the oral mucosa. We discussed the incidence of conversion into a dysplasia or carcinoma in situ or Frank cancer. This review and this podcast episode is directly applicable and useful in your day-to-day practice whether a general dentist a periodontist and oral surgeon or anyone that deals with a routine evaluation and examination of the oral cavity. A brief discussion about the treatment of actinic keratosis as well as lichen planus also ensues. You will not be disappointed!