I just had two implants installed. I have two posts, but one crown to act for two teeth on the lower left molars. When I eat, food becomes lodged at the base where the implants meet my real teeth on both sides. The top is nicely spaced for flossing, but the base feels pyramid- shaped at the gum meeting the teeth. I was told by the dentist that this was normal, and that implants are balloon-shaped. However, it doesn’t feel right and is not enjoyable when eating. It's a huge task to clean the implants after every meal. I know food will get between teeth, but the amount is too much. Any advice? How can I fix this? Is the "balloon theory" correct?