How can I fill the gaps between all teeth, so that food doesn't get stuck? (Photo)

I have gaps between all teeth. I'm 33. I smoked for 12 years, stopped 2 years ago. I also kept bad oral cleaning for years. This led to gum disease, which led to gaps between teeth. I think has been cured now by my dentist due to root planning and scaling. Now I keep good oral care. My mouth feels much better. But I hate food getting stuck in the gaps. Is there a solution for this? P.s. I also gring my teeth at night