The article focuses on Jan Sherwood and her views about cleanliness in dental practice. It states that as a cleaner at Chertsey Dental Practice, Sherwood sees to it that everything in the place is clean and free from dirt and germs. According to the author, Sherwood's devotion on cleanliness is an essential thing in the dental workplace and is one factor in the success of the business. Details on how Sherwood maintains the cleanliness at Chertsey are also provided.