Used during dental hygienist school. Used a few times. There is some soiling on the cover due to home storage, but the contents are clean. The basic section includes physiology, pathology, pharmacology, microbiology, nutritional guidance, histology/embryology, anatomy/oral anatomy, and hygiene/public health. The clinical section includes restorative dentistry, endodontics, periodontics, prosthodontics, oral surgery, pediatric dentistry, orthodontics, and oral hygiene. Thank you for looking.