It is very important that young pathologists striving to start a career in Oral Pathology must first know histology. For this reason, this set on PG Histology for MDS gives the opportunity to refresh their histology. For the convenience of users, slides of Histology have been separated into three folders. For example, a folder on Ground sections of teeth showing all the histological features for different enamel structures distinctly since enamel can not be seen in decalcified sections. All anatomical features of enamel have been illustrated in the ground sections. Sections are very thin and show very clear morphology.The other folders include tooth germ development and oral embryology and folder of decalcified sections, and special structures of Oral histology like circumvallate papillae taste buds PDL and many more. In addition the slides have been extensively annotated for convenience of users.