if you are hbeag positive
tenofovir has 16% hbv clearance at 3 years while
entecavir only 7%, hbvdna has no correlation with hbv clearance, only hbsag decrease has but if it is 89000iu/ml after 3 months you have no chances on entecavir to make it lower
the best treatment to clear hbv on hbeag positive now is tenofovir and then interferon add on, not entecavir