I went back on the 8th and picked up the "rebuilt" bottom denture. The dentist spent another 45 minutes making sure that he had all of the rub points out. It really surprised me when he first placed them in my mouth. I had them for 25 years and during that time, I used Fix-a-dent to hold them on my gum. So, now, 5 days after getting them, there is no need to apply Fix-a-dent and the teeth fit very well. They do not come loose like they did before and I have yet to get anything under them. In fact, they are harder to get out than the top ones. Makes me wonder why the original cast didn't fit as well as these. Forgot I had them in one night and slept with them in.