Can two front crowns cause incisive papilla to swell, also swelling between upper teeth?

Cracks in front teeth, dentist (new to me) put crowns on two teeth 1/7/15. Regular cleanings. Last few months started lisping, food caught roof mouth. When moved tongue top mouth Incisive papilla grown backward making tongue hit, causing lisp. Antibiotics no help, putting clove oil on gums. Dentist said if swollen by 9/10/15 do rootcanal. Still swollen, no pain. Don't think crowns fit properly. Need bacteria gone have hip replacement. Need help what to do. Am 65 yrs. old.