Hi Dear, Welcome to HCM. Understanding your concern. As per your query you have swollen bump on roof of mouth after dental surgery is because bridge preparation and temporary bridge placement as you did not get time for socket to heal properly and prosthodontic appliances have been placed in your oral cavity immediately. Need not to worry about it, its just appliance have not been placed correctly and it is causing irritation on upper mucosa and leads to formation of swollen bump. I would suggest you to visit dentist once and get pressure relieved on your denture with the help of support of adjacent tooth which will act as abutment. Till then don t prick that bump as if it is really big in size and interfering in swallowing incision and driange will be done by dentist. Take antibiotics such as Ibuprofen to prevent infection to further spread in oral cavity. Drink plenty of water. Take soft diet. Maintain hygiene of oral cavity by brushing and flossing very gently. Hope your concern has been resolved. Best Wishes, Dr. Harry Maheshwari