 [ Symptoms ] thc drugtest overweight my husband is 511 280lbs he smoked weed heavily my husband has not smoked in 41 days how lond will this last is it common what can he do to remove it faster [ Disease ] the ada recommendation is every 6 12 months for a child or adolescent with a history of decay but it could be as infrequent as every 12 24 months for an adult with no history of decay so i would discuss it with your dentist