hi i have had complication after complications each time i went to my dentist. i had 2 front teeth both cracked and chipped and they put fillers on both but they kept coming off so they removed one of the teeth and gave me a denture but its doesnt sit properly and each time i take it out it peels away some of the upper gum and bleeds and the second tooth which is filled is also coming off. what can i have done to make my smile better. i do know mu gums are quite weak.