How many teeth in total does a shark have?

Near unlimited. It regrows teeth as it loses them.

THE GREAT WHITE HAS 24-26 POSITION IN THE TOP JAW AND 22-24 POSITION IN LOWER JAW MAKING 48-50 DIFFERENT TEETH POSITION EACH TOOTH ARRAGED IN ROWS OF 5-7 TEETH LIKE A CONVEYER BELT WHEN A TOOTH FALLS OUT THE TOOTH FROM THE FRONT THE TOOTH FROM THE NEXT ROW MOVES UP TO TAKE ITS PLACE AT ANY TIME A WHITE SHARK WILL HAVE ABOUT 300 TEETH IN VARIOUS STAGES OF DEVELOPMENT WITHIN ITS JAWS
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