Weird taste in my mouth

So I had H-pylori back in September and I was given pylera for 2 weeks to cure it. I developed a metallic taste in my mouth during the course of treatment and while it mostly went away, I still have some weird taste in my mouth. I recently did the breath test and it came back negative.

Now at the same time, I had to have a root canal done and a crown placed. Is there any way this weird taste is due to my h-pylori or could it be due to the crown? I have had the word taste for a couple of months now.

Help!