I have one more huge tip for you. I also saw a periodontist. He did a full gum check and told me I had pockets but he acted like he couldn't help. You have to be very specific and ask if the pockets are deep enough to pack food and cause a poop smell. The poop smell is due to the break down of food, and certain gases being creating in your mouth, it is similar to what happens in your bowels. Food can not stay in those pocket,it is suppose to be digested if it is going to breath down. Your teeth are smart they don't want anything to do with gum inflammation, so they back away literally. Anyway you need to see a gum doctor if the dentist cannot help you. Sometimes they aren't very good with gum issues and they may be embarrassed to admit it. A gum doctor will be able to give you a special gum cleaning. I know it can be embarrassing an expensive, also we as people lead busy lives but if I could do it all over again I would have worked on fixing this sooner. Pregnancy also has an effect on gum disease. Please research this ladies. At least get tooth cleanings. You can't grow your gums back and replacing teeth is not the same, in terms of quality compared to your real teeth.