i am studying bacholar of dental surgery but have intrest in learning this subjet so tell me about a good book to read.
If you only want a single comprehensive text on Robotics, I would recommend the Springer Handbook of Robotics. I covers everything from controls and artificial intelligence to perception and mechanics; it is a phenomenal touchstone for further reading and is authored by the best minds in each sub-discipline in robotics. Of particular relevance to your background, there is significant coverage given to medical robotics, which you might find interesting.
Most introduction courses which are held on schools and universities are practical oriented. They use out-of-box robotics sets like Lego Mindstorms, Aldebaran Nao or Baxter Robot. On the topics of robotics there are many good books out there for theoretical advice. Most dominant is "Artificial Intelligence: A Modern Approach". A nice ressource for additional information is Google Scholar. At the beginning i would suggest to search for paper which are using computergames like Mario AI or Starcraft AI for implementing algorithms.