n 50s years Oral medicine 6. Cariology .Operative dentistry &Endodontics o Non-cariogenic disease of dental hard tissue Disease of oral mucosa ☆ Preventive dentistry ☆ Periodontology Paediatrics for dentistryIn 50’s years Oral medicine ❖Cariology ❖Operative dentistry ❖Endodontics ❖Non-cariogenic disease of dental hard tissue ❖Disease of Oral mucosa ❖Preventive dentistry ❖Periodontology ❖Paediatrics for dentistry