<prompt> Setting time of MTA is:60 - 5 minutes120 - 5 minutes165 - 5 minutes30 - 5 minutes  <response>: Mineral trioxide aggregate MTA was developed by Dr Torabinejad.Setting time is 2 hours and 45 minutes.Ref : Textbook of endodontics, Nisha Garg and Amit Garg, 3rd edition, pg no:551 