I broke my tooth after biting into a piece of plastic in my food, do I have a case?

I was eating some candy from a well-known brand and bit into a hard piece of plastic or something similar about a 1/4" in size. I didn't think initially that any damage was done. In the day after the incident I developed a toothache and now have a splintered tooth down into my gum. I have the object. The tooth was decaying already prior to this incident. I am wondering if I have a case or not. I will be going to my dentist to see if the tooth can be fixed or needs to be removed. Any thoughts or suggestions? Thank you!