Hey, I'm in the final year of dental college and I've got just one advice and that is collect all the important questions and start studying them, do not think about how much you'll be able to cover, you know already that however you try you won't be able to go through the whole syllabus so just do howmuchever time permits, it is always better than not knowing anything at all and just staring at the question paper for the whole time during the exams. Do not think about your grades just start studying the important questions. All the best!
Don't overthink how much you can cover. This happens with some people too even still they score good more. Don't even waste single minute from now. Complete all high weightage topics and chapters first. Then if you get time then cover the rest. If you do this you'll score well