Hi..
Welcome to HEALTHCARE MAGIC..
I have gone through your query and can understand your concerns..
As per your complain it seems that broken piece of tooth along with inside of tooth appearing completely black is clear indication of infection..
Also the pain is so severe and does not subside on taking regular painkillers is an indication that the nerves present in the center of tooth are also exposed to infection leading to
nerve irritation and inflammation leading to
severe pain..
I would suggest you to
consult a Dentist and get evaluated and he can advise an IOPAR ( x ray) for confirmation of the cause and treatment can be done accordingly.
In case if tooth can be saved you can be advised
Root Canal treatment of tooth followed by antibiotics and painkillers..
In case if tooth can not be saved Extraction is advisable..
As of now you can take higher painkillers like
TRAMADOL for relief..
Avoid chewing from painful side..
Hope this information helps..
Thanks and regards.
Dr.Honey Nandwani Arora.